/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.pig.test;
import static org.apache.pig.ExecType.LOCAL;
import static org.apache.pig.test.utils.TypeCheckingTestUtil.genDummyLOLoadNewLP;
import static org.apache.pig.test.utils.TypeCheckingTestUtil.genFlatSchema;
import static org.apache.pig.test.utils.TypeCheckingTestUtil.genFlatSchemaInTuple;
import static org.apache.pig.test.utils.TypeCheckingTestUtil.printCurrentMethodName;
import static org.apache.pig.test.utils.TypeCheckingTestUtil.printMessageCollector;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Properties;
import junit.framework.Assert;
import org.apache.pig.EvalFunc;
import org.apache.pig.ExecType;
import org.apache.pig.FuncSpec;
import org.apache.pig.PigServer;
import org.apache.pig.builtin.PigStorage;
import org.apache.pig.data.DataBag;
import org.apache.pig.data.DataByteArray;
import org.apache.pig.data.DataType;
import org.apache.pig.data.Tuple;
import org.apache.pig.data.TupleFactory;
import org.apache.pig.impl.PigContext;
import org.apache.pig.impl.io.FileSpec;
import org.apache.pig.impl.logicalLayer.FrontendException;
import org.apache.pig.impl.logicalLayer.schema.Schema;
import org.apache.pig.impl.logicalLayer.schema.Schema.FieldSchema;
import org.apache.pig.impl.logicalLayer.validators.TypeCheckerException;
import org.apache.pig.impl.plan.CompilationMessageCollector;
import org.apache.pig.impl.plan.CompilationMessageCollector.Message;
import org.apache.pig.impl.plan.CompilationMessageCollector.MessageType;
import org.apache.pig.impl.util.MultiMap;
import org.apache.pig.impl.util.Utils;
import org.apache.pig.newplan.DependencyOrderWalker;
import org.apache.pig.newplan.Operator;
import org.apache.pig.newplan.OperatorPlan;
import org.apache.pig.newplan.PlanVisitor;
import org.apache.pig.newplan.PlanWalker;
import org.apache.pig.newplan.ReverseDependencyOrderWalker;
import org.apache.pig.newplan.logical.expression.AddExpression;
import org.apache.pig.newplan.logical.expression.AndExpression;
import org.apache.pig.newplan.logical.expression.BinCondExpression;
import org.apache.pig.newplan.logical.expression.CastExpression;
import org.apache.pig.newplan.logical.expression.ConstantExpression;
import org.apache.pig.newplan.logical.expression.DereferenceExpression;
import org.apache.pig.newplan.logical.expression.DivideExpression;
import org.apache.pig.newplan.logical.expression.EqualExpression;
import org.apache.pig.newplan.logical.expression.GreaterThanExpression;
import org.apache.pig.newplan.logical.expression.LessThanEqualExpression;
import org.apache.pig.newplan.logical.expression.LogicalExpression;
import org.apache.pig.newplan.logical.expression.LogicalExpressionPlan;
import org.apache.pig.newplan.logical.expression.LogicalExpressionVisitor;
import org.apache.pig.newplan.logical.expression.MapLookupExpression;
import org.apache.pig.newplan.logical.expression.ModExpression;
import org.apache.pig.newplan.logical.expression.MultiplyExpression;
import org.apache.pig.newplan.logical.expression.NegativeExpression;
import org.apache.pig.newplan.logical.expression.NotEqualExpression;
import org.apache.pig.newplan.logical.expression.NotExpression;
import org.apache.pig.newplan.logical.expression.ProjectExpression;
import org.apache.pig.newplan.logical.expression.RegexExpression;
import org.apache.pig.newplan.logical.expression.SubtractExpression;
import org.apache.pig.newplan.logical.optimizer.AllExpressionVisitor;
import org.apache.pig.newplan.logical.relational.LOCogroup;
import org.apache.pig.newplan.logical.relational.LOCross;
import org.apache.pig.newplan.logical.relational.LODistinct;
import org.apache.pig.newplan.logical.relational.LOFilter;
import org.apache.pig.newplan.logical.relational.LOForEach;
import org.apache.pig.newplan.logical.relational.LOGenerate;
import org.apache.pig.newplan.logical.relational.LOInnerLoad;
import org.apache.pig.newplan.logical.relational.LOLoad;
import org.apache.pig.newplan.logical.relational.LOSort;
import org.apache.pig.newplan.logical.relational.LOSplit;
import org.apache.pig.newplan.logical.relational.LOSplitOutput;
import org.apache.pig.newplan.logical.relational.LOUnion;
import org.apache.pig.newplan.logical.relational.LogicalPlan;
import org.apache.pig.newplan.logical.relational.LogicalRelationalOperator;
import org.apache.pig.newplan.logical.relational.LogicalSchema;
import org.apache.pig.newplan.logical.relational.LogicalSchema.LogicalFieldSchema;
import org.apache.pig.newplan.logical.visitor.CastLineageSetter;
import org.apache.pig.newplan.logical.visitor.ColumnAliasConversionVisitor;
import org.apache.pig.newplan.logical.visitor.TypeCheckingExpVisitor;
import org.apache.pig.newplan.logical.visitor.TypeCheckingRelVisitor;
import org.apache.pig.newplan.logical.visitor.UnionOnSchemaSetter;
import org.apache.pig.parser.ParserException;
import org.apache.pig.parser.ParserTestingUtils;
import org.junit.Before;
import org.junit.Test;
import static org.apache.pig.test.Util.*;
public class TestTypeCheckingValidatorNewLP {
PigContext pc = new PigContext(ExecType.LOCAL, new Properties());
private static final String CAST_LOAD_NOT_FOUND =
"Cannot resolve load function to use for casting from bytearray";
/* (non-Javadoc)
* @see junit.framework.TestCase#setUp()
*/
@Before
public void setUp() throws Exception {
}
private static final String simpleEchoStreamingCommand;
static {
if (System.getProperty("os.name").toUpperCase().startsWith("WINDOWS"))
simpleEchoStreamingCommand = "perl -ne 'print \\\"$_\\\"'";
else
simpleEchoStreamingCommand = "perl -ne 'print \"$_\"'";
File fileA = new File("a");
File fileB = new File("b");
try {
fileA.delete();
fileB.delete();
if(!fileA.createNewFile() || !fileB.createNewFile())
fail("Unable to create input files");
} catch (IOException e) {
fail("Unable to create input files:" + e.getMessage());
}
fileA.deleteOnExit();
fileB.deleteOnExit();
}
@Test
public void testExpressionTypeChecking1() throws Throwable {
LogicalExpressionPlan expPlan = new LogicalExpressionPlan();
ConstantExpression constant1 = new ConstantExpression(expPlan, 10);
ConstantExpression constant2 = new ConstantExpression(expPlan, 20D) ;
ConstantExpression constant3 = new ConstantExpression(expPlan, 123f) ;
AddExpression add1 = new AddExpression(expPlan, constant1, constant2) ;
CastExpression cast1 = new CastExpression(expPlan,constant3, createFS(DataType.DOUBLE)) ;
MultiplyExpression mul1 = new MultiplyExpression(expPlan, add1, cast1) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingExpVisitor expTypeChecker = new TypeCheckingExpVisitor(expPlan, collector, null);
expTypeChecker.visit();
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (collector.hasError()) {
throw new Exception("Error during type checking") ;
}
// Induction check
assertEquals(DataType.DOUBLE, add1.getType()) ;
assertEquals(DataType.DOUBLE, mul1.getType()) ;
// Cast insertion check
assertEquals(DataType.DOUBLE, add1.getLhs().getType()) ;
assertEquals(DataType.DOUBLE, mul1.getRhs().getType()) ;
}
private LogicalFieldSchema createFS(byte datatype) {
return new LogicalFieldSchema(null, null, datatype);
}
@Test
public void testExpressionTypeCheckingFail1() throws Throwable {
LogicalExpressionPlan plan = new LogicalExpressionPlan() ;
ConstantExpression constant1 = new ConstantExpression(plan, 10) ;
ConstantExpression constant2 = new ConstantExpression(plan, 20D) ;
ConstantExpression constant3 = new ConstantExpression(plan, "123") ;
AddExpression add1 = new AddExpression(plan, constant1, constant2) ;
CastExpression cast1 = new CastExpression(plan, constant3, createFS(DataType.BYTEARRAY)) ;
MultiplyExpression mul1 = new MultiplyExpression(plan, add1, cast1) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingExpVisitor expTypeChecker = new TypeCheckingExpVisitor(plan, collector, null);
try {
expTypeChecker.visit();
fail("Exception expected") ;
}
catch (TypeCheckerException pve) {
// good
}
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (!collector.hasError()) {
throw new Exception("Error during type checking") ;
}
}
@Test
public void testExpressionTypeChecking2() throws Throwable {
LogicalExpressionPlan plan = new LogicalExpressionPlan() ;
ConstantExpression constant1 = new ConstantExpression(plan, 10) ;
ConstantExpression constant2 = new ConstantExpression(plan, new DataByteArray()) ;
ConstantExpression constant3 = new ConstantExpression(plan, 123L) ;
ConstantExpression constant4 = new ConstantExpression(plan, true) ;
SubtractExpression sub1 = new SubtractExpression(plan, constant1, constant2) ;
GreaterThanExpression gt1 = new GreaterThanExpression(plan, sub1, constant3) ;
AndExpression and1 = new AndExpression(plan, gt1, constant4) ;
NotExpression not1 = new NotExpression(plan, and1) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingExpVisitor expTypeChecker = new TypeCheckingExpVisitor(plan, collector, null);
expTypeChecker.visit();
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (collector.hasError()) {
throw new Exception("Error not expected during type checking") ;
}
// Induction check
assertEquals(DataType.INTEGER, sub1.getType()) ;
assertEquals(DataType.BOOLEAN, gt1.getType()) ;
assertEquals(DataType.BOOLEAN, and1.getType()) ;
assertEquals(DataType.BOOLEAN, not1.getType()) ;
// Cast insertion check
assertEquals(DataType.INTEGER, sub1.getRhs().getType()) ;
assertEquals(DataType.LONG, gt1.getLhs().getType()) ;
}
@Test
public void testExpressionTypeChecking3() throws Throwable {
LogicalExpressionPlan plan = new LogicalExpressionPlan() ;
ConstantExpression constant1 = new ConstantExpression(plan, 10) ;
ConstantExpression constant2 = new ConstantExpression(plan, 20L) ;
ConstantExpression constant3 = new ConstantExpression(plan, 123) ;
ModExpression mod1 = new ModExpression(plan, constant1, constant2) ;
EqualExpression equal1 = new EqualExpression(plan, mod1, constant3) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingExpVisitor expTypeChecker = new TypeCheckingExpVisitor(plan, collector, null);
expTypeChecker.visit();
plan.explain(System.out, "text", true);
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (collector.hasError()) {
throw new Exception("Error during type checking") ;
}
// Induction check
assertEquals(DataType.LONG, mod1.getType()) ;
assertEquals(DataType.BOOLEAN, equal1.getType()) ;
// Cast insertion check
assertEquals(DataType.LONG, mod1.getLhs().getType()) ;
assertEquals(DataType.LONG, equal1.getRhs().getType()) ;
}
@Test
public void testExpressionTypeChecking4() throws Throwable {
LogicalExpressionPlan plan = new LogicalExpressionPlan() ;
ConstantExpression constant1 = new ConstantExpression(plan, 10) ;
ConstantExpression constant2 = new ConstantExpression(plan, 20D) ;
ConstantExpression constant3 = new ConstantExpression(plan, 123f) ;
DivideExpression div1 = new DivideExpression(plan, constant1, constant2) ;
CastExpression cast1 = new CastExpression(plan, constant3, createFS(DataType.DOUBLE));
NotEqualExpression notequal1 = new NotEqualExpression(plan, div1, cast1) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingExpVisitor expTypeChecker = new TypeCheckingExpVisitor(plan, collector, null);
expTypeChecker.visit();
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (collector.hasError()) {
throw new Exception("Error during type checking") ;
}
// Induction check
assertEquals(DataType.DOUBLE, div1.getType()) ;
assertEquals(DataType.BOOLEAN, notequal1.getType()) ;
// Cast insertion check
assertEquals(DataType.DOUBLE, div1.getLhs().getType()) ;
assertEquals(DataType.DOUBLE, notequal1.getRhs().getType()) ;
}
@Test
public void testExpressionTypeCheckingFail4() throws Throwable {
LogicalExpressionPlan plan = new LogicalExpressionPlan() ;
ConstantExpression constant1 = new ConstantExpression(plan, 10) ;
ConstantExpression constant2 = new ConstantExpression(plan, 20D) ;
ConstantExpression constant3 = new ConstantExpression(plan, "123") ;
DivideExpression div1 = new DivideExpression(plan, constant1, constant2) ;
CastExpression cast1 = new CastExpression(plan, constant3, createFS(DataType.BYTEARRAY)) ;
NotEqualExpression notequal1 = new NotEqualExpression(plan, div1, cast1) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingExpVisitor expTypeChecker = new TypeCheckingExpVisitor(plan, collector, null);
try{
expTypeChecker.visit();
fail("Exception expected") ;
}
catch (TypeCheckerException pve) {
// good
}
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (!collector.hasError()) {
throw new Exception("Error during type checking") ;
}
}
@Test
public void testExpressionTypeChecking5() throws Throwable {
LogicalExpressionPlan plan = new LogicalExpressionPlan() ;
ConstantExpression constant1 = new ConstantExpression(plan, 10F) ;
ConstantExpression constant2 = new ConstantExpression(plan, 20L) ;
ConstantExpression constant3 = new ConstantExpression(plan, 123F) ;
ConstantExpression constant4 = new ConstantExpression(plan, 123D) ;
LessThanEqualExpression lesser1 = new LessThanEqualExpression(plan, constant1, constant2) ;
BinCondExpression bincond1 = new BinCondExpression(plan, lesser1, constant3, constant4) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingExpVisitor expTypeChecker = new TypeCheckingExpVisitor(plan, collector, null);
expTypeChecker.visit();
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (collector.hasError()) {
throw new Exception("Error during type checking") ;
}
// Induction check
assertEquals(DataType.BOOLEAN, lesser1.getType()) ;
assertEquals(DataType.DOUBLE, bincond1.getType()) ;
// Cast insertion check
assertEquals(DataType.FLOAT, lesser1.getLhs().getType()) ;
assertEquals(DataType.FLOAT, lesser1.getRhs().getType()) ;
assertEquals(DataType.DOUBLE, bincond1.getLhs().getType()) ;
assertEquals(DataType.DOUBLE, bincond1.getRhs().getType()) ;
}
@Test
public void testExpressionTypeChecking6() throws Throwable {
LogicalExpressionPlan plan = new LogicalExpressionPlan() ;
ConstantExpression constant1 = new ConstantExpression(plan, "10") ;
ConstantExpression constant2 = new ConstantExpression(plan, 20L) ;
AddExpression add1 = new AddExpression(plan, constant1, constant2) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
LogicalRelationalOperator dummyRelOp = createDummyRelOpWithAlias();
TypeCheckingExpVisitor expTypeChecker = new TypeCheckingExpVisitor(plan, collector, dummyRelOp);
try {
expTypeChecker.visit();
fail("Exception expected") ;
}
catch (TypeCheckerException pve) {
String msg = "In alias dummy, incompatible types in " +
"Add Operator left hand side:chararray right hand side:long";
checkMessageInException(pve, msg);
}
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (!collector.hasError()) {
throw new AssertionError("Error expected") ;
}
}
/**
* @return a dummy logical relational operator
*/
private LogicalRelationalOperator createDummyRelOpWithAlias() {
class DummyRelOp extends LogicalRelationalOperator{
DummyRelOp(){
super("dummy", new LogicalPlan());
this.alias = "dummy";
}
@Override
public LogicalSchema getSchema() throws FrontendException {
return null;
}
@Override
public void accept(PlanVisitor v) throws FrontendException {
}
@Override
public boolean isEqual(Operator operator) throws FrontendException {
return false;
}
}
return new DummyRelOp();
}
@Test
public void testExpressionTypeChecking7() throws Throwable {
LogicalExpressionPlan plan = new LogicalExpressionPlan() ;
ConstantExpression constant1 = new ConstantExpression(plan, 10) ;
ConstantExpression constant2 = new ConstantExpression(plan, 20D) ;
ConstantExpression constant3 = new ConstantExpression(plan, 123L) ;
GreaterThanExpression gt1 = new GreaterThanExpression(plan, constant1, constant2) ;
EqualExpression equal1 = new EqualExpression(plan, gt1, constant3) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
LogicalRelationalOperator dummyRelOp = createDummyRelOpWithAlias();
TypeCheckingExpVisitor expTypeChecker = new TypeCheckingExpVisitor(plan, collector, dummyRelOp);
try {
expTypeChecker.visit();
fail("Exception expected") ;
}
catch (TypeCheckerException pve) {
// good
}
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (!collector.hasError()) {
throw new AssertionError("Error expected") ;
}
}
@Test
public void testExpressionTypeChecking8() throws Throwable {
LogicalExpressionPlan plan = new LogicalExpressionPlan() ;
TupleFactory tupleFactory = TupleFactory.getInstance();
ArrayList<Object> innerObjList = new ArrayList<Object>();
ArrayList<Object> objList = new ArrayList<Object>();
innerObjList.add(10);
innerObjList.add(3);
innerObjList.add(7);
innerObjList.add(17);
Tuple innerTuple = tupleFactory.newTuple(innerObjList);
objList.add("World");
objList.add(42);
objList.add(innerTuple);
Tuple tuple = tupleFactory.newTuple(objList);
ArrayList<Schema.FieldSchema> innerFss = new ArrayList<Schema.FieldSchema>();
ArrayList<Schema.FieldSchema> fss = new ArrayList<Schema.FieldSchema>();
ArrayList<Schema.FieldSchema> castFss = new ArrayList<Schema.FieldSchema>();
Schema.FieldSchema stringFs = new Schema.FieldSchema(null, DataType.CHARARRAY);
Schema.FieldSchema intFs = new Schema.FieldSchema(null, DataType.INTEGER);
for(int i = 0; i < innerObjList.size(); ++i) {
innerFss.add(intFs);
}
Schema innerTupleSchema = new Schema(innerFss);
fss.add(stringFs);
fss.add(intFs);
fss.add(new Schema.FieldSchema(null, innerTupleSchema, DataType.TUPLE));
Schema tupleSchema = new Schema(fss);
Schema.FieldSchema byteArrayFs = new Schema.FieldSchema(null, DataType.BYTEARRAY);
for(int i = 0; i < 4; ++i) {
castFss.add(byteArrayFs);
}
Schema castSchema = new Schema(castFss);
ConstantExpression constant1 = new ConstantExpression(plan, innerTuple) ;
ConstantExpression constant2 = new ConstantExpression(plan, tuple) ;
CastExpression cast1 = new CastExpression(plan, constant1,
org.apache.pig.newplan.logical.Util.translateFieldSchema(new FieldSchema(null, castSchema, DataType.TUPLE))) ;
EqualExpression equal1 = new EqualExpression(plan, cast1, constant2) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
LogicalRelationalOperator dummyRelOp = createDummyRelOpWithAlias();
TypeCheckingExpVisitor expTypeChecker = new TypeCheckingExpVisitor(plan, collector, dummyRelOp);
expTypeChecker.visit();
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (collector.hasError()) {
throw new Exception("Error during type checking") ;
}
assertEquals(DataType.BOOLEAN, equal1.getType()) ;
assertEquals(DataType.TUPLE, equal1.getRhs().getType()) ;
assertEquals(DataType.TUPLE, equal1.getLhs().getType()) ;
}
/*
* chararray can been cast to int when jira-893 been resolved
*/
@Test
public void testExpressionTypeChecking9() throws Throwable {
LogicalExpressionPlan plan = new LogicalExpressionPlan() ;
TupleFactory tupleFactory = TupleFactory.getInstance();
ArrayList<Object> innerObjList = new ArrayList<Object>();
ArrayList<Object> objList = new ArrayList<Object>();
innerObjList.add("10");
innerObjList.add("3");
innerObjList.add(7);
innerObjList.add("17");
Tuple innerTuple = tupleFactory.newTuple(innerObjList);
objList.add("World");
objList.add(42);
objList.add(innerTuple);
Tuple tuple = tupleFactory.newTuple(objList);
ArrayList<Schema.FieldSchema> innerFss = new ArrayList<Schema.FieldSchema>();
ArrayList<Schema.FieldSchema> fss = new ArrayList<Schema.FieldSchema>();
ArrayList<Schema.FieldSchema> castFss = new ArrayList<Schema.FieldSchema>();
Schema.FieldSchema stringFs = new Schema.FieldSchema(null, DataType.CHARARRAY);
Schema.FieldSchema intFs = new Schema.FieldSchema(null, DataType.INTEGER);
Schema.FieldSchema doubleFs = new Schema.FieldSchema(null, DataType.DOUBLE);
innerFss.add(stringFs);
innerFss.add(stringFs);
innerFss.add(intFs);
innerFss.add(stringFs);
Schema innerTupleSchema = new Schema(innerFss);
fss.add(stringFs);
fss.add(intFs);
fss.add(new Schema.FieldSchema(null, innerTupleSchema, DataType.TUPLE));
Schema tupleSchema = new Schema(fss);
castFss.add(stringFs);
castFss.add(stringFs);
castFss.add(doubleFs);
castFss.add(intFs);
Schema castSchema = new Schema(castFss);
ConstantExpression constant1 = new ConstantExpression(plan, innerTuple) ;
ConstantExpression constant2 = new ConstantExpression(plan, tuple) ;
CastExpression cast1 = new CastExpression(plan, constant1,
org.apache.pig.newplan.logical.Util.translateFieldSchema(new FieldSchema(null, castSchema, DataType.TUPLE))) ;
EqualExpression equal1 = new EqualExpression(plan, cast1, constant2) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
LogicalRelationalOperator dummyRelOp = createDummyRelOpWithAlias();
TypeCheckingExpVisitor expTypeChecker = new TypeCheckingExpVisitor(plan, collector, dummyRelOp);
try {
expTypeChecker.visit();
}
catch (TypeCheckerException pve) {
fail("Exception not expected") ;
}
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (collector.hasError()) {
throw new Exception("Error expected") ;
}
}
@Test
public void testArithmeticOpCastInsert1() throws Throwable {
LogicalExpressionPlan plan = new LogicalExpressionPlan() ;
ConstantExpression constant1 = new ConstantExpression(plan, 10) ;
ConstantExpression constant2 = new ConstantExpression(plan, 20D) ;
MultiplyExpression mul1 = new MultiplyExpression(plan,constant1, constant2) ;
// Before type checking its set correctly - PIG-421
// System.out.println(DataType.findTypeName(mul1.getType())) ;
// assertEquals(DataType.DOUBLE, mul1.getType()) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingExpVisitor expTypeChecker = new TypeCheckingExpVisitor(plan, collector, null);
expTypeChecker.visit();
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
// After type checking
System.out.println(DataType.findTypeName(mul1.getType())) ;
assertEquals(DataType.DOUBLE, mul1.getType()) ;
}
@Test
public void testArithmeticOpCastInsert2() throws Throwable {
LogicalExpressionPlan plan = new LogicalExpressionPlan() ;
ConstantExpression constant1 = new ConstantExpression(plan, 10) ;
ConstantExpression constant2 = new ConstantExpression(plan, 20L) ;
NegativeExpression neg1 = new NegativeExpression(plan, constant1) ;
SubtractExpression subtract1 = new SubtractExpression(plan, neg1, constant2) ;
// Before type checking its set correctly = PIG-421
// assertEquals(DataType.LONG, subtract1.getType()) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingExpVisitor expTypeChecker = new TypeCheckingExpVisitor(plan, collector, null);
expTypeChecker.visit();
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
// After type checking
System.out.println(DataType.findTypeName(subtract1.getType())) ;
assertEquals(DataType.LONG, subtract1.getType()) ;
assertTrue(subtract1.getLhs() instanceof CastExpression);
assertEquals(((CastExpression)subtract1.getLhs()).getType(), DataType.LONG);
assertTrue(((CastExpression)subtract1.getLhs()).getExpression() == neg1);
}
@Test
public void testModCastInsert1() throws Throwable {
LogicalExpressionPlan plan = new LogicalExpressionPlan() ;
ConstantExpression constant1 = new ConstantExpression(plan, 10) ;
ConstantExpression constant2 = new ConstantExpression(plan, 20L) ;
ModExpression mod1 = new ModExpression(plan, constant1, constant2) ;
// Before type checking its set correctly = PIG-421
// assertEquals(DataType.LONG, mod1.getType()) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingExpVisitor expTypeChecker = new TypeCheckingExpVisitor(plan, collector, null);
expTypeChecker.visit();
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
// After type checking
System.out.println(DataType.findTypeName(mod1.getType())) ;
assertEquals(DataType.LONG, mod1.getType()) ;
assertTrue(mod1.getLhs() instanceof CastExpression);
assertEquals(((CastExpression)mod1.getLhs()).getType(), DataType.LONG);
assertTrue(((CastExpression)mod1.getLhs()).getExpression() == constant1);
}
// Positive case
@Test
public void testRegexTypeChecking1() throws Throwable {
LogicalExpressionPlan plan = new LogicalExpressionPlan() ;
ConstantExpression constant1 = new ConstantExpression(plan, "10") ;
ConstantExpression constant2 = new ConstantExpression(plan, "Regex");
RegexExpression regex = new RegexExpression(plan, constant1, constant2) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingExpVisitor expTypeChecker = new TypeCheckingExpVisitor(plan, collector, null);
expTypeChecker.visit();
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
// After type checking
System.out.println(DataType.findTypeName(regex.getType())) ;
assertEquals(DataType.BOOLEAN, regex.getType()) ;
}
// Positive case with cast insertion
@Test
public void testRegexTypeChecking2() throws Throwable {
LogicalExpressionPlan plan = new LogicalExpressionPlan() ;
ConstantExpression constant1 = new ConstantExpression(plan,
new DataByteArray()
) ;
ConstantExpression constant2 = new ConstantExpression(plan, "Regex");
RegexExpression regex = new RegexExpression(plan, constant1, constant2);
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingExpVisitor expTypeChecker = new TypeCheckingExpVisitor(plan, collector, null);
expTypeChecker.visit();
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
// After type checking
if (collector.hasError()) {
throw new Exception("Error not expected during type checking") ;
}
// check type
System.out.println(DataType.findTypeName(regex.getType())) ;
assertEquals(DataType.BOOLEAN, regex.getType()) ;
// check wiring
CastExpression cast = (CastExpression) regex.getLhs() ;
assertEquals(cast.getType(), DataType.CHARARRAY);
assertEquals(cast.getExpression(), constant1) ;
}
// Negative case
@Test
public void testRegexTypeChecking3() throws Throwable {
LogicalExpressionPlan plan = new LogicalExpressionPlan() ;
ConstantExpression constant1 = new ConstantExpression(plan, 10) ;
ConstantExpression constant2 = new ConstantExpression(plan, "Regex");
RegexExpression regex = new RegexExpression(plan, constant1, constant2);
try {
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingExpVisitor expTypeChecker = new TypeCheckingExpVisitor(plan, collector, null);
expTypeChecker.visit();
printMessageCollector(collector) ;
fail("Exception expected") ;
}
catch (TypeCheckerException pve) {
// good
}
}
// This tests when both inputs need casting
@Test
public void testUnionCastingInsert1() throws Throwable {
printCurrentMethodName();
LogicalPlan plan = new LogicalPlan() ;
String pigStorage = PigStorage.class.getName() ;
LOLoad load1 = new LOLoad(
new FileSpec("pi", new FuncSpec(pigStorage)),
null, plan, null
);
LOLoad load2 = new LOLoad(
new FileSpec("pi", new FuncSpec(pigStorage)),
null, plan, null
);
//
// new LOLoad(plan,
//
// new FileSpec("pi", new FuncSpec(pigStorage)),
// null) ;
// LOLoad load2 = new LOLoad(plan,
//
// new FileSpec("pi", new FuncSpec(pigStorage)),
// null) ;
//
// schema for input#1
Schema inputSchema1 = null ;
{
List<FieldSchema> fsList1 = new ArrayList<FieldSchema>() ;
fsList1.add(new FieldSchema("field1a", DataType.INTEGER)) ;
fsList1.add(new FieldSchema("field2a", DataType.LONG)) ;
fsList1.add(new FieldSchema(null, DataType.BYTEARRAY)) ;
fsList1.add(new FieldSchema(null, DataType.CHARARRAY)) ;
inputSchema1 = new Schema(fsList1) ;
}
// schema for input#2
Schema inputSchema2 = null ;
{
List<FieldSchema> fsList2 = new ArrayList<FieldSchema>() ;
fsList2.add(new FieldSchema("field1b", DataType.DOUBLE)) ;
fsList2.add(new FieldSchema(null, DataType.INTEGER)) ;
fsList2.add(new FieldSchema("field3b", DataType.FLOAT)) ;
fsList2.add(new FieldSchema("field4b", DataType.CHARARRAY)) ;
inputSchema2 = new Schema(fsList2) ;
}
// set schemas
load1.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema(inputSchema1));
load2.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema(inputSchema2));
// create union operator
ArrayList<LogicalRelationalOperator> inputList = new ArrayList<LogicalRelationalOperator>() ;
inputList.add(load1) ;
inputList.add(load2) ;
LOUnion union = new LOUnion(plan, false) ;
// wiring
plan.add(load1) ;
plan.add(load2) ;
plan.add(union) ;
plan.connect(load1, union);
plan.connect(load2, union);
// validate
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
typeChecker.visit();
printMessageCollector(collector) ;
// check end result schema
Schema outputSchema = org.apache.pig.newplan.logical.Util.translateSchema(union.getSchema()) ;
Schema expectedSchema = null ;
{
List<FieldSchema> fsListExpected = new ArrayList<FieldSchema>() ;
fsListExpected.add(new FieldSchema("field1a", DataType.DOUBLE)) ;
fsListExpected.add(new FieldSchema("field2a", DataType.LONG)) ;
fsListExpected.add(new FieldSchema("field3b", DataType.FLOAT)) ;
fsListExpected.add(new FieldSchema("field4b", DataType.CHARARRAY)) ;
expectedSchema = new Schema(fsListExpected) ;
}
assertTrue(Schema.equals(outputSchema, expectedSchema, true, false)) ;
//printTypeGraph(plan) ;
// check the inserted casting of input1
{
// Check wiring
List<Operator> sucList1 = plan.getSuccessors(load1);
assertEquals(sucList1.size(), 1);
LOForEach foreach = (LOForEach) sucList1.get(0) ;
assertTrue(foreach instanceof LOForEach) ;
List<Operator> sucList2 = plan.getSuccessors(foreach);
assertEquals(sucList2.size(), 1);
assertTrue(sucList2.get(0) instanceof LOUnion) ;
// Check inserted casting
checkForEachCasting(foreach, 0, true, DataType.DOUBLE) ;
checkForEachCasting(foreach, 1, false, DataType.UNKNOWN) ;
checkForEachCasting(foreach, 2, true, DataType.FLOAT) ;
checkForEachCasting(foreach, 3, false, DataType.UNKNOWN) ;
}
// check the inserted casting of input2
{
// Check wiring
List<Operator> sucList1 = plan.getSuccessors(load2) ;
assertEquals(sucList1.size(), 1);
LOForEach foreach = (LOForEach) sucList1.get(0) ;
assertTrue(foreach instanceof LOForEach) ;
List<Operator> sucList2 = plan.getSuccessors(foreach) ;
assertEquals(sucList2.size(), 1);
assertTrue(sucList2.get(0) instanceof LOUnion) ;
// Check inserted casting
checkForEachCasting(foreach, 0, false, DataType.UNKNOWN) ;
checkForEachCasting(foreach, 1, true, DataType.LONG) ;
checkForEachCasting(foreach, 2, false, DataType.UNKNOWN) ;
checkForEachCasting(foreach, 3, false, DataType.UNKNOWN) ;
}
}
// This tests when both only on input needs casting
@Test
public void testUnionCastingInsert2() throws Throwable {
printCurrentMethodName();
LogicalPlan plan = new LogicalPlan() ;
String pigStorage = PigStorage.class.getName() ;
LOLoad load1 = new LOLoad(
new FileSpec("pi", new FuncSpec(pigStorage)),
null, plan, null
);
LOLoad load2 = new LOLoad(
new FileSpec("pi", new FuncSpec(pigStorage)),
null, plan, null
);
// schema for input#1
Schema inputSchema1 = null ;
{
List<FieldSchema> fsList1 = new ArrayList<FieldSchema>() ;
fsList1.add(new FieldSchema("field1a", DataType.INTEGER)) ;
fsList1.add(new FieldSchema("field2a", DataType.BYTEARRAY)) ;
inputSchema1 = new Schema(fsList1) ;
}
// schema for input#2
Schema inputSchema2 = null ;
{
List<FieldSchema> fsList2 = new ArrayList<FieldSchema>() ;
fsList2.add(new FieldSchema("field1b", DataType.DOUBLE)) ;
fsList2.add(new FieldSchema("field2b", DataType.DOUBLE)) ;
inputSchema2 = new Schema(fsList2) ;
}
// set schemas
load1.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema(inputSchema1));
load2.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema(inputSchema2));
// create union operator
ArrayList<LogicalRelationalOperator> inputList = new ArrayList<LogicalRelationalOperator>() ;
inputList.add(load1) ;
inputList.add(load2) ;
LOUnion union = new LOUnion(plan, false) ;
// wiring
plan.add(load1) ;
plan.add(load2) ;
plan.add(union) ;
plan.connect(load1, union);
plan.connect(load2, union);
// validate
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
typeChecker.visit();
printMessageCollector(collector) ;
// check end result schema
Schema outputSchema = org.apache.pig.newplan.logical.Util.translateSchema(union.getSchema()) ;
Schema expectedSchema = null ;
{
List<FieldSchema> fsListExpected = new ArrayList<FieldSchema>() ;
fsListExpected.add(new FieldSchema("field1a", DataType.DOUBLE)) ;
fsListExpected.add(new FieldSchema("field2a", DataType.DOUBLE)) ;
expectedSchema = new Schema(fsListExpected) ;
}
assertTrue(Schema.equals(outputSchema, expectedSchema, true, false)) ;
//printTypeGraph(plan) ;
// check the inserted casting of input1
{
// Check wiring
List<Operator> sucList1 = plan.getSuccessors(load1);
assertEquals(sucList1.size(), 1);
LOForEach foreach = (LOForEach) sucList1.get(0) ;
assertTrue(foreach instanceof LOForEach) ;
List<Operator> sucList2 = plan.getSuccessors(foreach);
assertEquals(sucList2.size(), 1);
assertTrue(sucList2.get(0) instanceof LOUnion) ;
// Check inserted casting
checkForEachCasting(foreach, 0, true, DataType.DOUBLE) ;
checkForEachCasting(foreach, 1, true, DataType.DOUBLE) ;
}
// check the inserted casting of input2
{
// Check wiring
List<Operator> sucList1 = plan.getSuccessors(load2);
assertEquals(sucList1.size(), 1);
assertTrue(sucList1.get(0) instanceof LOUnion) ;
}
}
@Test
public void testDistinct1() throws Throwable {
printCurrentMethodName();
LogicalPlan plan = new LogicalPlan() ;
String pigStorage = PigStorage.class.getName() ;
LOLoad load1 = new LOLoad(
new FileSpec("pi", new FuncSpec(pigStorage)),
null, plan, null
);
// schema for input#1
Schema inputSchema1 = null ;
{
List<FieldSchema> innerList = new ArrayList<FieldSchema>() ;
innerList.add(new FieldSchema("innerfield1", DataType.BAG)) ;
innerList.add(new FieldSchema("innerfield2", DataType.FLOAT)) ;
Schema innerSchema = new Schema(innerList) ;
List<FieldSchema> fsList1 = new ArrayList<FieldSchema>() ;
fsList1.add(new FieldSchema("field1", DataType.INTEGER)) ;
fsList1.add(new FieldSchema("field2", DataType.BYTEARRAY)) ;
fsList1.add(new FieldSchema("field3", innerSchema)) ;
fsList1.add(new FieldSchema("field4", DataType.BAG)) ;
inputSchema1 = new Schema(fsList1) ;
}
// set schemas
load1.setSchema(org.apache.pig.newplan.logical.Util.translateSchema(inputSchema1)) ;
// create union operator
LODistinct distinct1 = new LODistinct(plan) ;
// wiring
plan.add(load1) ;
plan.add(distinct1) ;
plan.connect(load1, distinct1);
// validate
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
typeChecker.visit();
printMessageCollector(collector) ;
// check end result schema
LogicalSchema outputSchema = distinct1.getSchema() ;
assertTrue(load1.getSchema().isEqual(outputSchema));
}
// Positive test
@Test
public void testFilterWithInnerPlan1() throws Throwable {
testFilterWithInnerPlan(DataType.INTEGER, DataType.LONG) ;
}
// Positive test
@Test
public void testFilterWithInnerPlan2() throws Throwable {
testFilterWithInnerPlan(DataType.INTEGER, DataType.BYTEARRAY) ;
}
// Filter test helper
public void testFilterWithInnerPlan(byte field1Type, byte field2Type) throws Throwable {
// Create outer plan
printCurrentMethodName();
LogicalPlan plan = new LogicalPlan() ;
String pigStorage = PigStorage.class.getName() ;
LOLoad load1 = new LOLoad(
new FileSpec("pi", new FuncSpec(pigStorage)),
null, plan, null
);
// schema for input#1
Schema inputSchema1 = null ;
{
List<FieldSchema> fsList1 = new ArrayList<FieldSchema>() ;
fsList1.add(new FieldSchema("field1", field1Type)) ;
fsList1.add(new FieldSchema("field2", field2Type)) ;
inputSchema1 = new Schema(fsList1) ;
}
// set schemas
load1.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema(inputSchema1)) ;
// Create inner plan
LogicalExpressionPlan innerPlan = new LogicalExpressionPlan() ;
// filter
LOFilter filter1 = new LOFilter(plan) ;
filter1.setFilterPlan(innerPlan);
ProjectExpression project1 = new ProjectExpression(innerPlan, 0, 0, filter1);
// new ProjectExpression(innerPlan, load1, 0) ;
// project1.setSentinel(true);
ProjectExpression project2 = new ProjectExpression(innerPlan, 0, 1, filter1);
//new ProjectExpression(innerPlan, load1, 1) ;
//project2.setSentinel(true);
GreaterThanExpression gt1 = new GreaterThanExpression(innerPlan, project1, project2);
plan.add(load1);
plan.add(filter1);
plan.connect(load1, filter1) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
typeChecker.visit();
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (collector.hasError()) {
throw new AssertionError("Expect no error") ;
}
LogicalSchema endResultSchema = filter1.getSchema() ;
assertEquals(endResultSchema.getField(0).type, field1Type) ;
assertEquals(endResultSchema.getField(1).type, field2Type) ;
}
// Negative test
@Test
public void testFilterWithInnerPlan3() throws Throwable {
// Create outer plan
printCurrentMethodName();
LogicalPlan plan = new LogicalPlan() ;
String pigStorage = PigStorage.class.getName() ;
LOLoad load1 = new LOLoad(
new FileSpec("pi", new FuncSpec(pigStorage)),
null, plan, null
);
// schema for input#1
Schema inputSchema1 = null ;
{
List<FieldSchema> fsList1 = new ArrayList<FieldSchema>() ;
fsList1.add(new FieldSchema("field1", DataType.INTEGER)) ;
fsList1.add(new FieldSchema("field2", DataType.LONG)) ;
inputSchema1 = new Schema(fsList1) ;
}
// set schemas
load1.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema((inputSchema1))) ;
// Create inner plan
LogicalExpressionPlan innerPlan = new LogicalExpressionPlan() ;
// filter
LOFilter filter1 = new LOFilter(plan) ;
filter1.setFilterPlan(innerPlan);
ProjectExpression project1 = new ProjectExpression(innerPlan, 0, 0, filter1) ;
ProjectExpression project2 = new ProjectExpression(innerPlan, 0, 1, filter1) ;
AddExpression add1 = new AddExpression(innerPlan, project1, project2) ;
plan.add(load1);
plan.add(filter1);
plan.connect(load1, filter1) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
try {
typeChecker.visit();
}
catch (Exception t) {
// good
}
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (!collector.hasError()) {
throw new AssertionError("Expect error") ;
}
}
// Simple project sort columns
@Test
public void testSortWithInnerPlan1() throws Throwable {
// Create outer plan
printCurrentMethodName();
LogicalPlan plan = new LogicalPlan() ;
String pigStorage = PigStorage.class.getName() ;
LOLoad load1 = new LOLoad(
new FileSpec("pi", new FuncSpec(pigStorage)),
null, plan, null
);
// schema for input#1
Schema inputSchema1 = null ;
{
List<FieldSchema> fsList1 = new ArrayList<FieldSchema>() ;
fsList1.add(new FieldSchema("field1", DataType.LONG)) ;
fsList1.add(new FieldSchema("field2", DataType.INTEGER)) ;
inputSchema1 = new Schema(fsList1) ;
}
// set schemas
load1.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema((inputSchema1))) ; ;
// Create project inner plan #1
LogicalExpressionPlan innerPlan1 = new LogicalExpressionPlan() ;
// Sort
LOSort sort1 = new LOSort(plan);
ProjectExpression project1 = new ProjectExpression(innerPlan1, 0, 1, sort1) ;
innerPlan1.add(project1) ;
// Create project inner plan #2
LogicalExpressionPlan innerPlan2 = new LogicalExpressionPlan() ;
ProjectExpression project2 = new ProjectExpression(innerPlan2, 0, 0, sort1) ;
innerPlan2.add(project2) ;
// List of innerplans
List<LogicalExpressionPlan> innerPlans = new ArrayList<LogicalExpressionPlan>() ;
innerPlans.add(innerPlan1) ;
innerPlans.add(innerPlan2) ;
// List of ASC flags
List<Boolean> ascList = new ArrayList<Boolean>() ;
ascList.add(true);
ascList.add(true);
sort1.setAscendingCols(ascList);
sort1.setSortColPlans(innerPlans);
plan.add(load1);
plan.add(sort1);
plan.connect(load1, sort1) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
typeChecker.visit();
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (collector.hasError()) {
throw new AssertionError("Expect no error") ;
}
LogicalSchema endResultSchema = sort1.getSchema() ;
// outer
assertEquals(endResultSchema.getField(0).type, DataType.LONG) ;
assertEquals(endResultSchema.getField(1).type, DataType.INTEGER) ;
// inner
assertEquals(getSingleOutput(innerPlan1).getType(), DataType.INTEGER);
assertEquals(getSingleOutput(innerPlan2).getType(), DataType.LONG);
}
private LogicalExpression getSingleOutput(LogicalExpressionPlan innerPlan1) {
List<Operator> outputs = innerPlan1.getSources();
assertEquals("number of outputs in exp plan", outputs.size(),1);
return (LogicalExpression)outputs.get(0);
}
// Positive expression sort columns
@Test
public void testSortWithInnerPlan2() throws Throwable {
// Create outer plan
printCurrentMethodName();
LogicalPlan plan = new LogicalPlan() ;
String pigStorage = PigStorage.class.getName() ;
LOLoad load1 = new LOLoad(
new FileSpec("pi", new FuncSpec(pigStorage)),
null, plan, null
);
// schema for input#1
Schema inputSchema1 = null ;
{
List<FieldSchema> fsList1 = new ArrayList<FieldSchema>() ;
fsList1.add(new FieldSchema("field1", DataType.BYTEARRAY)) ;
fsList1.add(new FieldSchema("field2", DataType.INTEGER)) ;
inputSchema1 = new Schema(fsList1) ;
}
// set schemas
load1.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema((inputSchema1))) ; ;
LOSort sort1 = new LOSort(plan) ;
// Create expression inner plan #1
LogicalExpressionPlan innerPlan1 = new LogicalExpressionPlan() ;
ProjectExpression project11 = new ProjectExpression(innerPlan1, 0, 0, sort1) ;
ProjectExpression project12 = new ProjectExpression(innerPlan1, 0, 1, sort1) ;
MultiplyExpression mul1 = new MultiplyExpression(innerPlan1, project11, project12) ;
// Create expression inner plan #2
LogicalExpressionPlan innerPlan2 = new LogicalExpressionPlan() ;
ProjectExpression project21 = new ProjectExpression(innerPlan2, 0, 0, sort1) ;
ConstantExpression const21 = new ConstantExpression(innerPlan2, 26L) ;
ModExpression mod21 = new ModExpression(innerPlan2, project21, const21) ;
// List of innerplans
List<LogicalExpressionPlan> innerPlans = new ArrayList<LogicalExpressionPlan>() ;
innerPlans.add(innerPlan1) ;
innerPlans.add(innerPlan2) ;
// List of ASC flags
List<Boolean> ascList = new ArrayList<Boolean>() ;
ascList.add(true);
ascList.add(true);
// Sort
sort1.setAscendingCols(ascList);
sort1.setSortColPlans(innerPlans);
plan.add(load1);
plan.add(sort1);
plan.connect(load1, sort1) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
typeChecker.visit();
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (collector.hasError()) {
throw new AssertionError("Expect no error") ;
}
LogicalSchema endResultSchema = sort1.getSchema() ;
// outer
assertEquals(endResultSchema.getField(0).type, DataType.BYTEARRAY) ;
assertEquals(endResultSchema.getField(1).type, DataType.INTEGER) ;
// inner
assertEquals(getSingleOutput(innerPlan1).getType(), DataType.INTEGER);
assertEquals(getSingleOutput(innerPlan2).getType(), DataType.LONG);
}
// Negative test on expression sort columns
@Test
public void testSortWithInnerPlan3() throws Throwable {
// Create outer plan
printCurrentMethodName();
LogicalPlan plan = new LogicalPlan() ;
String pigStorage = PigStorage.class.getName() ;
LOLoad load1 = new LOLoad(
new FileSpec("pi", new FuncSpec(pigStorage)),
null, plan, null
);
// schema for input#1
Schema inputSchema1 = null ;
{
List<FieldSchema> fsList1 = new ArrayList<FieldSchema>() ;
fsList1.add(new FieldSchema("field1", DataType.BYTEARRAY)) ;
fsList1.add(new FieldSchema("field2", DataType.INTEGER)) ;
inputSchema1 = new Schema(fsList1) ;
}
// set schemas
load1.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema((inputSchema1))) ; ;
// Sort
LOSort sort1 = new LOSort(plan) ;
// Create expression inner plan #1
LogicalExpressionPlan innerPlan1 = new LogicalExpressionPlan() ;
ProjectExpression project11 = new ProjectExpression(innerPlan1, 0, 0, sort1) ;
ProjectExpression project12 = new ProjectExpression(innerPlan1, 0, 1, sort1) ;
MultiplyExpression mul1 = new MultiplyExpression(innerPlan1, project11, project12) ;
// Create expression inner plan #2
LogicalExpressionPlan innerPlan2 = new LogicalExpressionPlan() ;
ProjectExpression project21 = new ProjectExpression(innerPlan2, 0, 0, sort1) ;
ConstantExpression const21 = new ConstantExpression(innerPlan2, "26") ;
ModExpression mod21 = new ModExpression(innerPlan2, project21, const21) ;
// List of innerplans
List<LogicalExpressionPlan> innerPlans = new ArrayList<LogicalExpressionPlan>() ;
innerPlans.add(innerPlan1) ;
innerPlans.add(innerPlan2) ;
// List of ASC flags
List<Boolean> ascList = new ArrayList<Boolean>() ;
ascList.add(true);
ascList.add(true);
// Sort
sort1.setAscendingCols(ascList);
sort1.setSortColPlans(innerPlans);
plan.add(load1);
plan.add(sort1);
plan.connect(load1, sort1) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
try {
typeChecker.visit();
fail("Error expected") ;
}
catch (Exception t) {
// good
}
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (!collector.hasError()) {
throw new AssertionError("Error expected") ;
}
}
// Positive expression cond columns
@Test
public void testSplitWithInnerPlan1() throws Throwable {
// Create outer plan
printCurrentMethodName();
LogicalPlan plan = new LogicalPlan() ;
String pigStorage = PigStorage.class.getName() ;
LOLoad load1 = new LOLoad(
new FileSpec("pi", new FuncSpec(pigStorage)),
null, plan, null
);
// schema for input#1
Schema inputSchema1 = null ;
{
List<FieldSchema> fsList1 = new ArrayList<FieldSchema>() ;
fsList1.add(new FieldSchema("field1", DataType.BYTEARRAY)) ;
fsList1.add(new FieldSchema("field2", DataType.INTEGER)) ;
inputSchema1 = new Schema(fsList1) ;
}
// set schemas
load1.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema((inputSchema1))) ; ;
// split
LOSplit split1 = new LOSplit(plan);
// output1
LOSplitOutput splitOutput1 = new LOSplitOutput(plan) ;
// output2
LOSplitOutput splitOutput2 = new LOSplitOutput(plan) ;
// Create expression inner plan #1
LogicalExpressionPlan innerPlan1 = new LogicalExpressionPlan() ;
ProjectExpression project11 = new ProjectExpression(innerPlan1, 0, 0, splitOutput1) ;
ProjectExpression project12 = new ProjectExpression(innerPlan1, 0, 1, splitOutput1) ;
NotEqualExpression notequal1 = new NotEqualExpression(innerPlan1, project11, project12) ;
// Create expression inner plan #2
LogicalExpressionPlan innerPlan2 = new LogicalExpressionPlan() ;
ProjectExpression project21 = new ProjectExpression(innerPlan2, 0, 0, splitOutput2) ;
ConstantExpression const21 = new ConstantExpression(innerPlan2, 26L) ;
LessThanEqualExpression lesser21 = new LessThanEqualExpression(innerPlan2, project21, const21) ;
splitOutput1.setFilterPlan(innerPlan1);
splitOutput2.setFilterPlan(innerPlan2);
plan.add(load1);
plan.add(split1);
plan.add(splitOutput1);
plan.add(splitOutput2);
plan.connect(load1, split1) ;
plan.connect(split1, splitOutput1) ;
plan.connect(split1, splitOutput2) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
typeChecker.visit();
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (collector.hasError()) {
throw new AssertionError("Expect no error") ;
}
// check split itself
{
LogicalSchema endResultSchema1 = split1.getSchema() ;
// outer
assertEquals(endResultSchema1.getField(0).type, DataType.BYTEARRAY) ;
assertEquals(endResultSchema1.getField(1).type, DataType.INTEGER) ;
}
// check split output #1
{
LogicalSchema endResultSchema1 = splitOutput1.getSchema() ;
// outer
assertEquals(endResultSchema1.getField(0).type, DataType.BYTEARRAY) ;
assertEquals(endResultSchema1.getField(1).type, DataType.INTEGER) ;
}
// check split output #2
{
LogicalSchema endResultSchema2 = splitOutput2.getSchema() ;
// outer
assertEquals(endResultSchema2.getField(0).type, DataType.BYTEARRAY) ;
assertEquals(endResultSchema2.getField(1).type, DataType.INTEGER) ;
}
// inner conditions: all have to be boolean
assertEquals(getSingleOutput(innerPlan1).getType(), DataType.BOOLEAN);
assertEquals(getSingleOutput(innerPlan2).getType(), DataType.BOOLEAN);
}
// Negative test: expression cond columns not evaluate to boolean
@Test
public void testSplitWithInnerPlan2() throws Throwable {
// Create outer plan
printCurrentMethodName();
LogicalPlan plan = new LogicalPlan() ;
String pigStorage = PigStorage.class.getName() ;
LOLoad load1 = new LOLoad(
new FileSpec("pi", new FuncSpec(pigStorage)),
null, plan, null
);
// schema for input#1
Schema inputSchema1 = null ;
{
List<FieldSchema> fsList1 = new ArrayList<FieldSchema>() ;
fsList1.add(new FieldSchema("field1", DataType.BYTEARRAY)) ;
fsList1.add(new FieldSchema("field2", DataType.INTEGER)) ;
inputSchema1 = new Schema(fsList1) ;
}
// set schemas
load1.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema((inputSchema1))) ; ;
// split
LOSplit split1 = new LOSplit(plan);
// output1
LOSplitOutput splitOutput1 = new LOSplitOutput(plan) ;
// output2
LOSplitOutput splitOutput2 = new LOSplitOutput(plan) ;
// Create expression inner plan #1
LogicalExpressionPlan innerPlan1 = new LogicalExpressionPlan() ;
ProjectExpression project11 = new ProjectExpression(innerPlan1, 0, 0, splitOutput1) ;
ProjectExpression project12 = new ProjectExpression(innerPlan1, 0, 1, splitOutput1) ;
NotEqualExpression notequal1 = new NotEqualExpression(innerPlan1, project11, project12) ;
// Create expression inner plan #2
LogicalExpressionPlan innerPlan2 = new LogicalExpressionPlan() ;
ProjectExpression project21 = new ProjectExpression(innerPlan2, 0, 0, splitOutput1) ;
ConstantExpression const21 =
new ConstantExpression(innerPlan2, 26L) ;
SubtractExpression subtract21 =
new SubtractExpression(innerPlan2, project21, const21) ;
splitOutput1.setFilterPlan(innerPlan1);
splitOutput2.setFilterPlan(innerPlan2);
plan.add(load1);
plan.add(split1);
plan.add(splitOutput1);
plan.add(splitOutput2);
plan.connect(load1, split1) ;
plan.connect(split1, splitOutput1) ;
plan.connect(split1, splitOutput2) ;
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
try {
typeChecker.visit();
}
catch (Exception t) {
// good
}
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (!collector.hasError()) {
throw new AssertionError("Error expected") ;
}
}
// Positive test
@Test
public void testCOGroupWithInnerPlan1GroupByTuple1() throws Throwable {
printCurrentMethodName();
LogicalPlan plan = new LogicalPlan() ;
String pigStorage = PigStorage.class.getName() ;
LOLoad load1 = new LOLoad(
new FileSpec("pi", new FuncSpec(pigStorage)),
null, plan, null
);
LOLoad load2 = new LOLoad(
new FileSpec("pi", new FuncSpec(pigStorage)),
null, plan, null
);
// schema for input#1
Schema inputSchema1 = null ;
{
List<FieldSchema> fsList1 = new ArrayList<FieldSchema>() ;
fsList1.add(new FieldSchema("field1a", DataType.INTEGER)) ;
fsList1.add(new FieldSchema("field2a", DataType.LONG)) ;
inputSchema1 = new Schema(fsList1) ;
}
// schema for input#2
Schema inputSchema2 = null ;
{
List<FieldSchema> fsList2 = new ArrayList<FieldSchema>() ;
fsList2.add(new FieldSchema("field1b", DataType.DOUBLE)) ;
fsList2.add(new FieldSchema(null, DataType.INTEGER)) ;
inputSchema2 = new Schema(fsList2) ;
}
// set schemas
load1.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema((inputSchema1))) ;
load2.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema((inputSchema2))) ;
load2.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema((inputSchema2))) ;
LOCogroup cogroup1 = new LOCogroup(plan);
// Create expression inner plan #1 of input #1
LogicalExpressionPlan innerPlan11 = new LogicalExpressionPlan() ;
ProjectExpression project111 = new ProjectExpression(innerPlan11, 0, 0, cogroup1) ;
ConstantExpression const111 = new ConstantExpression(innerPlan11, 26F) ;
SubtractExpression subtract111 = new SubtractExpression(innerPlan11, project111, const111) ;
// Create expression inner plan #2 of input #1
LogicalExpressionPlan innerPlan21 = new LogicalExpressionPlan() ;
ProjectExpression project211 = new ProjectExpression(innerPlan21, 0, 0, cogroup1) ;
ProjectExpression project212 = new ProjectExpression(innerPlan21, 0, 1, cogroup1) ;
AddExpression add211 = new AddExpression(innerPlan21, project211, project212) ;
// Create expression inner plan #1 of input #2
LogicalExpressionPlan innerPlan12 = new LogicalExpressionPlan() ;
ProjectExpression project121 = new ProjectExpression(innerPlan12, 1, 0, cogroup1) ;
ConstantExpression const121 = new ConstantExpression(innerPlan12, 26) ;
SubtractExpression subtract121 = new SubtractExpression(innerPlan12, project121, const121) ;
// Create expression inner plan #2 of input #2
LogicalExpressionPlan innerPlan22 = new LogicalExpressionPlan() ;
ConstantExpression const122 = new ConstantExpression(innerPlan22, 26) ;
// innerPlan22.add(const122) ;
// Create Cogroup
ArrayList<LogicalRelationalOperator> inputs = new ArrayList<LogicalRelationalOperator>() ;
inputs.add(load1) ;
inputs.add(load2) ;
MultiMap<Integer, LogicalExpressionPlan> maps
= new MultiMap<Integer, LogicalExpressionPlan>() ;
maps.put(0, innerPlan11);
maps.put(0, innerPlan21);
maps.put(1, innerPlan12);
maps.put(1, innerPlan22);
boolean[] isInner = new boolean[inputs.size()] ;
for (int i=0; i < isInner.length ; i++) {
isInner[i] = false ;
}
cogroup1.setInnerFlags(isInner);
cogroup1.setExpressionPlans(maps);
// construct the main plan
plan.add(load1) ;
plan.add(load2) ;
plan.add(cogroup1) ;
plan.connect(load1, cogroup1);
plan.connect(load2, cogroup1);
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
typeChecker.visit();
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (collector.hasError()) {
throw new AssertionError("Expect no error") ;
}
// check outer schema
LogicalSchema endResultSchema = cogroup1.getSchema() ;
// Tuple group column
assertEquals(endResultSchema.getField(0).type, DataType.TUPLE) ;
assertEquals(endResultSchema.getField(0).schema.getField(0).type, DataType.DOUBLE) ;
assertEquals(endResultSchema.getField(0).schema.getField(1).type, DataType.LONG);
assertEquals(endResultSchema.getField(1).type, DataType.BAG) ;
assertEquals(endResultSchema.getField(2).type, DataType.BAG) ;
// check inner schema1
LogicalSchema innerSchema1 = endResultSchema.getField(1).schema.getField(0).schema ;
assertEquals(innerSchema1.getField(0).type, DataType.INTEGER);
assertEquals(innerSchema1.getField(1).type, DataType.LONG);
// check inner schema2
LogicalSchema innerSchema2 = endResultSchema.getField(2).schema.getField(0).schema ;
assertEquals(innerSchema2.getField(0).type, DataType.DOUBLE);
assertEquals(innerSchema2.getField(1).type, DataType.INTEGER);
// check group by col end result
assertEquals(getSingleOutput(innerPlan11).getType(), DataType.DOUBLE) ;
assertEquals(getSingleOutput(innerPlan21).getType(), DataType.LONG) ;
assertEquals(getSingleOutput(innerPlan12).getType(), DataType.DOUBLE) ;
assertEquals(getSingleOutput(innerPlan22).getType(), DataType.LONG) ;
}
// Positive test
@Test
public void testCOGroupWithInnerPlan1GroupByAtom1() throws Throwable {
printCurrentMethodName();
LogicalPlan plan = new LogicalPlan() ;
String pigStorage = PigStorage.class.getName() ;
LOLoad load1 = new LOLoad(
new FileSpec("pi", new FuncSpec(pigStorage)),
null, plan, null
);
LOLoad load2 = new LOLoad(
new FileSpec("pi", new FuncSpec(pigStorage)),
null, plan, null
);
// schema for input#1
Schema inputSchema1 = null ;
{
List<FieldSchema> fsList1 = new ArrayList<FieldSchema>() ;
fsList1.add(new FieldSchema("field1a", DataType.INTEGER)) ;
fsList1.add(new FieldSchema("field2a", DataType.LONG)) ;
inputSchema1 = new Schema(fsList1) ;
}
// schema for input#2
Schema inputSchema2 = null ;
{
List<FieldSchema> fsList2 = new ArrayList<FieldSchema>() ;
fsList2.add(new FieldSchema("field1b", DataType.DOUBLE)) ;
fsList2.add(new FieldSchema(null, DataType.INTEGER)) ;
inputSchema2 = new Schema(fsList2) ;
}
// set schemas
load1.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema((inputSchema1))) ; ;
load2.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema((inputSchema2))) ;
LOCogroup cogroup1 = new LOCogroup(plan);
// Create expression inner plan #1 of input #1
LogicalExpressionPlan innerPlan11 = new LogicalExpressionPlan() ;
ProjectExpression project111 = new ProjectExpression(innerPlan11, 0, 0, cogroup1) ;
ConstantExpression const111 = new ConstantExpression(innerPlan11, 26F) ;
SubtractExpression subtract111 = new SubtractExpression(innerPlan11, project111, const111) ;
// Create expression inner plan #1 of input #2
LogicalExpressionPlan innerPlan12 = new LogicalExpressionPlan() ;
ProjectExpression project121 = new ProjectExpression(innerPlan12, 1, 0, cogroup1) ;
ConstantExpression const121 = new ConstantExpression(innerPlan12, 26) ;
SubtractExpression subtract121 = new SubtractExpression(innerPlan12, project121, const121) ;
// Create Cogroup
ArrayList<LogicalRelationalOperator> inputs = new ArrayList<LogicalRelationalOperator>() ;
inputs.add(load1) ;
inputs.add(load2) ;
MultiMap<Integer, LogicalExpressionPlan> maps
= new MultiMap<Integer, LogicalExpressionPlan>() ;
maps.put(0, innerPlan11);
maps.put(1, innerPlan12);
boolean[] isInner = new boolean[inputs.size()] ;
for (int i=0; i < isInner.length ; i++) {
isInner[i] = false ;
}
cogroup1.setInnerFlags(isInner);
cogroup1.setExpressionPlans(maps);
// construct the main plan
plan.add(load1) ;
plan.add(load2) ;
plan.add(cogroup1) ;
plan.connect(load1, cogroup1);
plan.connect(load2, cogroup1);
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
typeChecker.visit();
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (collector.hasError()) {
throw new AssertionError("Expect no error") ;
}
// check outer schema
LogicalSchema endResultSchema = cogroup1.getSchema() ;
// Tuple group column
assertEquals(endResultSchema.getField(0).type, DataType.DOUBLE) ;
assertEquals(endResultSchema.getField(1).type, DataType.BAG) ;
assertEquals(endResultSchema.getField(2).type, DataType.BAG) ;
// check inner schema1
LogicalSchema innerSchema1 = endResultSchema.getField(1).schema.getField(0).schema ;
assertEquals(innerSchema1.getField(0).type, DataType.INTEGER);
assertEquals(innerSchema1.getField(1).type, DataType.LONG);
// check inner schema2
LogicalSchema innerSchema2 = endResultSchema.getField(2).schema.getField(0).schema ;
assertEquals(innerSchema2.getField(0).type, DataType.DOUBLE);
assertEquals(innerSchema2.getField(1).type, DataType.INTEGER);
// check group by col end result
assertEquals(getSingleOutput(innerPlan11).getType(), DataType.DOUBLE) ;
assertEquals(getSingleOutput(innerPlan12).getType(), DataType.DOUBLE) ;
}
// Positive test
@Test
public void testCOGroupWithInnerPlan1GroupByIncompatibleAtom1() throws Throwable {
printCurrentMethodName();
LogicalPlan plan = new LogicalPlan() ;
String pigStorage = PigStorage.class.getName() ;
LOLoad load1 = new LOLoad(
new FileSpec("pi", new FuncSpec(pigStorage)),
null, plan, null
);
LOLoad load2 = new LOLoad(
new FileSpec("pi", new FuncSpec(pigStorage)),
null, plan, null
);
// schema for input#1
Schema inputSchema1 = null ;
{
List<FieldSchema> fsList1 = new ArrayList<FieldSchema>() ;
fsList1.add(new FieldSchema("field1a", DataType.INTEGER)) ;
fsList1.add(new FieldSchema("field2a", DataType.LONG)) ;
inputSchema1 = new Schema(fsList1) ;
}
// schema for input#2
Schema inputSchema2 = null ;
{
List<FieldSchema> fsList2 = new ArrayList<FieldSchema>() ;
fsList2.add(new FieldSchema("field1b", DataType.DOUBLE)) ;
fsList2.add(new FieldSchema(null, DataType.INTEGER)) ;
inputSchema2 = new Schema(fsList2) ;
}
// set schemas
load1.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema((inputSchema1))) ;
load2.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema((inputSchema2))) ;
LOCogroup cogroup1 = new LOCogroup(plan);
// Create expression inner plan #1
LogicalExpressionPlan innerPlan11 = new LogicalExpressionPlan() ;
ProjectExpression project111 = new ProjectExpression(innerPlan11, 0, 0, cogroup1) ;
ConstantExpression const111 = new ConstantExpression(innerPlan11, 26F) ;
SubtractExpression subtract111 = new SubtractExpression(innerPlan11, project111, const111) ;
// Create expression inner plan #2
LogicalExpressionPlan innerPlan12 = new LogicalExpressionPlan() ;
ConstantExpression const121 = new ConstantExpression(innerPlan12, 26) ;
// innerPlan12.add(const121) ;
// Create Cogroup
ArrayList<LogicalRelationalOperator> inputs = new ArrayList<LogicalRelationalOperator>() ;
inputs.add(load1) ;
inputs.add(load2) ;
MultiMap<Integer, LogicalExpressionPlan> maps
= new MultiMap<Integer, LogicalExpressionPlan>() ;
maps.put(0, innerPlan11);
maps.put(1, innerPlan12);
boolean[] isInner = new boolean[inputs.size()] ;
for (int i=0; i < isInner.length ; i++) {
isInner[i] = false ;
}
cogroup1.setInnerFlags(isInner);
cogroup1.setExpressionPlans(maps);
// construct the main plan
plan.add(load1) ;
plan.add(load2) ;
plan.add(cogroup1) ;
plan.connect(load1, cogroup1);
plan.connect(load2, cogroup1);
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
typeChecker.visit();
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (collector.hasError()) {
throw new AssertionError("Expect no error") ;
}
// check outer schema
LogicalSchema endResultSchema = cogroup1.getSchema() ;
// Tuple group column
assertEquals(endResultSchema.getField(0).type, DataType.FLOAT) ;
assertEquals(endResultSchema.getField(1).type, DataType.BAG) ;
assertEquals(endResultSchema.getField(2).type, DataType.BAG) ;
// check inner schema1
LogicalSchema innerSchema1 = endResultSchema.getField(1).schema.getField(0).schema ;
assertEquals(innerSchema1.getField(0).type, DataType.INTEGER);
assertEquals(innerSchema1.getField(1).type, DataType.LONG);
// check inner schema2
LogicalSchema innerSchema2 = endResultSchema.getField(2).schema.getField(0).schema ;
assertEquals(innerSchema2.getField(0).type, DataType.DOUBLE);
assertEquals(innerSchema2.getField(1).type, DataType.INTEGER);
// check group by col end result
assertEquals(getSingleOutput(innerPlan11).getType(), DataType.FLOAT) ;
assertEquals(getSingleOutput(innerPlan12).getType(), DataType.FLOAT) ;
}
// Positive test
@Test
public void testForEachGenerate1() throws Throwable {
printCurrentMethodName() ;
LogicalPlan plan = new LogicalPlan() ;
LOLoad load1 = genDummyLOLoadNewLP(plan) ;
// schema for input#1
Schema inputSchema1 = null ;
{
List<FieldSchema> fsList1 = new ArrayList<FieldSchema>() ;
fsList1.add(new FieldSchema("field1a", DataType.INTEGER)) ;
fsList1.add(new FieldSchema("field2a", DataType.LONG)) ;
inputSchema1 = new Schema(fsList1) ;
}
// set schemas
load1.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema((inputSchema1))) ; ;
LogicalPlan innerRelPlan = new LogicalPlan();
LOForEach foreach1 = new LOForEach(plan);
foreach1.setInnerPlan(innerRelPlan);
LOGenerate loGen = new LOGenerate(innerRelPlan);
innerRelPlan.add(loGen);
LOInnerLoad innerLoad1 = new LOInnerLoad(innerRelPlan, foreach1, 0);
innerRelPlan.add(innerLoad1);
innerRelPlan.connect(innerLoad1, loGen);
// Create expression inner plan #1
LogicalExpressionPlan innerPlan1 = new LogicalExpressionPlan() ;
ProjectExpression project11 = new ProjectExpression(innerPlan1, 0, 0, loGen) ;
ConstantExpression const11 = new ConstantExpression(innerPlan1, 26F) ;
SubtractExpression subtract11 = new SubtractExpression(innerPlan1, project11, const11) ;
// Create expression inner plan #2
LogicalExpressionPlan innerPlan2 = new LogicalExpressionPlan() ;
LOInnerLoad innerLoad2 = new LOInnerLoad(innerRelPlan, foreach1, 0);
innerRelPlan.add(innerLoad2);
innerRelPlan.connect(innerLoad2, loGen);
ProjectExpression project21 = new ProjectExpression(innerPlan2, 1, 0, loGen) ;
LOInnerLoad innerLoad3 = new LOInnerLoad(innerRelPlan, foreach1, 1);
innerRelPlan.add(innerLoad3);
innerRelPlan.connect(innerLoad3, loGen);
ProjectExpression project22 = new ProjectExpression(innerPlan2, 2, 0, loGen) ;
AddExpression add21 = new AddExpression(innerPlan2, project21, project22 ) ;
// List of plans
ArrayList<LogicalExpressionPlan> generatePlans = new ArrayList<LogicalExpressionPlan>() ;
generatePlans.add(innerPlan1);
generatePlans.add(innerPlan2);
// List of flatten flags
boolean [] flattens = {true, false};
loGen.setFlattenFlags(flattens);
loGen.setOutputPlans(generatePlans);
// construct the main plan
plan.add(load1) ;
plan.add(foreach1) ;
plan.connect(load1, foreach1);
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
typeChecker.visit();
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (collector.hasError()) {
throw new AssertionError("Expect no error") ;
}
// check outer schema
LogicalSchema endResultSchema = foreach1.getSchema() ;
assertEquals(endResultSchema.getField(0).type, DataType.FLOAT) ;
assertEquals(endResultSchema.getField(1).type, DataType.LONG) ;
}
// Negative test
@Test
public void testForEachGenerate2() throws Throwable {
printCurrentMethodName() ;
LogicalPlan plan = new LogicalPlan() ;
LOLoad load1 = genDummyLOLoadNewLP(plan) ;
// schema for input#1
Schema inputSchema1 = null ;
{
List<FieldSchema> fsList1 = new ArrayList<FieldSchema>() ;
fsList1.add(new FieldSchema("field1a", DataType.INTEGER)) ;
fsList1.add(new FieldSchema("field2a", DataType.LONG)) ;
inputSchema1 = new Schema(fsList1) ;
}
// set schemas
load1.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema((inputSchema1))) ; ;
LogicalPlan innerRelPlan = new LogicalPlan();
LOForEach foreach1 = new LOForEach(plan);
foreach1.setInnerPlan(innerRelPlan);
LOGenerate loGen = new LOGenerate(innerRelPlan);
innerRelPlan.add(loGen);
LOInnerLoad innerLoad1 = new LOInnerLoad(innerRelPlan, foreach1, 0);
innerRelPlan.add(innerLoad1);
innerRelPlan.connect(innerLoad1, loGen);
// Create expression inner plan #1
LogicalExpressionPlan innerPlan1 = new LogicalExpressionPlan() ;
ProjectExpression project11 = new ProjectExpression(innerPlan1, 0, 0, loGen) ;
ConstantExpression const11 = new ConstantExpression(innerPlan1, "26F") ;
SubtractExpression subtract11 = new SubtractExpression(innerPlan1, project11, const11) ;
// Create expression inner plan #2
LogicalExpressionPlan innerPlan2 = new LogicalExpressionPlan() ;
innerLoad1 = new LOInnerLoad(innerRelPlan, foreach1, 0);
innerRelPlan.add(innerLoad1);
innerRelPlan.connect(innerLoad1, loGen);
ProjectExpression project21 = new ProjectExpression(innerPlan2, 1, 0, loGen) ;
innerLoad1 = new LOInnerLoad(innerRelPlan, foreach1, 0);
innerRelPlan.add(innerLoad1);
innerRelPlan.connect(innerLoad1, loGen);
ProjectExpression project22 = new ProjectExpression(innerPlan2, 2, 1, loGen) ;
AddExpression add21 = new AddExpression(innerPlan2, project21, project22) ;
// List of plans
ArrayList<LogicalExpressionPlan> generatePlans = new ArrayList<LogicalExpressionPlan>() ;
generatePlans.add(innerPlan1);
generatePlans.add(innerPlan2);
// List of flatten flags
boolean [] flattens = {true, false};
loGen.setFlattenFlags(flattens);
loGen.setOutputPlans(generatePlans);
// construct the main plan
plan.add(load1) ;
plan.add(foreach1) ;
plan.connect(load1, foreach1);
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
try {
typeChecker.visit();
fail("Exception expected") ;
}
catch (TypeCheckerException pve) {
// good
}
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (!collector.hasError()) {
throw new AssertionError("Expect error") ;
}
}
// Positive test
// This one does project bag in inner plans with flatten
@Test
public void testForEachGenerate4() throws Throwable {
printCurrentMethodName() ;
LogicalPlan plan = new LogicalPlan() ;
LOLoad load1 = genDummyLOLoadNewLP(plan) ;
String[] aliases = new String[]{ "a", "b", "c" } ;
byte[] types = new byte[] { DataType.INTEGER, DataType.LONG, DataType.BYTEARRAY } ;
Schema innerSchema1 = genFlatSchemaInTuple(aliases, types) ;
// schema for input#1
Schema inputSchema1 = null ;
{
List<FieldSchema> fsList1 = new ArrayList<FieldSchema>() ;
fsList1.add(new FieldSchema("field1a", DataType.INTEGER)) ;
fsList1.add(new FieldSchema("field2a", DataType.LONG)) ;
fsList1.add(new FieldSchema("field3a", innerSchema1, DataType.BAG)) ;
inputSchema1 = new Schema(fsList1) ;
}
// set schemas
load1.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema((inputSchema1))) ; ;
LogicalPlan innerRelPlan = new LogicalPlan();
LOForEach foreach1 = new LOForEach(plan);
foreach1.setInnerPlan(innerRelPlan);
LOGenerate loGen = new LOGenerate(innerRelPlan);
innerRelPlan.add(loGen);
LOInnerLoad innerLoad1 = new LOInnerLoad(innerRelPlan, foreach1, 2);
innerRelPlan.add(innerLoad1);
innerRelPlan.connect(innerLoad1, loGen);
// Create expression inner plan #1 of input #1
LogicalExpressionPlan innerPlan1 = new LogicalExpressionPlan() ;
ProjectExpression project11 = new ProjectExpression(innerPlan1, 0, 2, loGen) ;
List<Integer> projections1 = new ArrayList<Integer>() ;
projections1.add(1) ;
projections1.add(2) ;
//ProjectExpression project12 = new ProjectExpression(innerPlan1, project11, projections1) ;
//project12.setSentinel(false);
DereferenceExpression project12 = new DereferenceExpression(innerPlan1, projections1);
// innerPlan1.connect(project11, project12);
innerPlan1.connect(project12, project11);
// Create expression inner plan #1 of input #2
LogicalExpressionPlan innerPlan2 = new LogicalExpressionPlan() ;
innerLoad1 = new LOInnerLoad(innerRelPlan, foreach1, 0);
innerRelPlan.add(innerLoad1);
innerRelPlan.connect(innerLoad1, loGen);
ProjectExpression project21 = new ProjectExpression(innerPlan2, 1, 0, loGen) ;
innerLoad1 = new LOInnerLoad(innerRelPlan, foreach1, 1);
innerRelPlan.add(innerLoad1);
innerRelPlan.connect(innerLoad1, loGen);
//ProjectExpression project22 = new ProjectExpression(innerPlan2, 2, 1, loGen) ;
ProjectExpression project22 = new ProjectExpression(innerPlan2, 2, 0, loGen) ;
AddExpression add21 = new AddExpression(innerPlan2, project21, project22) ;
// innerPlan2.add(project21) ;
// innerPlan2.add(project22) ;
// innerPlan2.add(add21) ;
//
// innerPlan2.connect(project21, add21);
// innerPlan2.connect(project22, add21);
// List of plans
ArrayList<LogicalExpressionPlan> generatePlans = new ArrayList<LogicalExpressionPlan>() ;
generatePlans.add(innerPlan1);
generatePlans.add(innerPlan2);
// List of flatten flags
boolean [] flattens = {true, false};
loGen.setFlattenFlags(flattens);
loGen.setOutputPlans(generatePlans);
// construct the main plan
plan.add(load1) ;
plan.add(foreach1) ;
plan.connect(load1, foreach1);
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
typeChecker.visit();
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
if (collector.hasError()) {
throw new AssertionError("Expect no error") ;
}
// check outer schema
LogicalSchema endResultSchema = foreach1.getSchema() ;
assertEquals(endResultSchema.getField(0).type, DataType.LONG) ;
assertEquals(endResultSchema.getField(1).type, DataType.BYTEARRAY) ;
assertEquals(endResultSchema.getField(2).type, DataType.LONG) ;
}
@Test
public void testCross1() throws Throwable {
printCurrentMethodName();
LogicalPlan plan = new LogicalPlan() ;
LOLoad load1 = genDummyLOLoadNewLP(plan) ;
LOLoad load2 = genDummyLOLoadNewLP(plan) ;
String[] aliases1 = new String[]{ "a", "b", "c" } ;
byte[] types1 = new byte[] { DataType.INTEGER, DataType.LONG, DataType.BYTEARRAY } ;
Schema schema1 = genFlatSchema(aliases1, types1) ;
String[] aliases2 = new String[]{ "e", "f" } ;
byte[] types2 = new byte[] { DataType.FLOAT, DataType.DOUBLE } ;
Schema schema2 = genFlatSchema(aliases2, types2) ;
// set schemas
load1.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema(schema1)) ;
load2.setScriptSchema(org.apache.pig.newplan.logical.Util.translateSchema(schema2));
LOCross cross = new LOCross(plan) ;
// wiring
plan.add(load1) ;
plan.add(load2) ;
plan.add(cross) ;
plan.connect(load1, cross);
plan.connect(load2, cross);
// validate
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
typeChecker.visit();
printMessageCollector(collector) ;
//printTypeGraph(plan) ;
assertEquals(cross.getSchema().size(), 5) ;
assertEquals(cross.getSchema().getField(0).type, DataType.INTEGER);
assertEquals(cross.getSchema().getField(1).type, DataType.LONG);
assertEquals(cross.getSchema().getField(2).type, DataType.BYTEARRAY);
assertEquals(cross.getSchema().getField(3).type, DataType.FLOAT);
assertEquals(cross.getSchema().getField(4).type, DataType.DOUBLE);
}
@Test
public void testLineage1() throws Throwable {
String query = "a = load 'a' as (field1: int, field2: float, field3: chararray );"
+ "b = foreach a generate field1 + 1.0 ;";
CastExpression cast = getCastFromLastForeach(query);
assertTrue(cast.getFuncSpec() == null);
}
/**
* Convert query to logical plan, do validations,
* return the cast in the expression in the foreach
* relation which is the final relation in the plan
* @param query
* @return
* @throws FrontendException
*/
private CastExpression getCastFromLastForeach(String query) throws FrontendException {
return getCastFromLastForeach(query, 0);
}
private CastExpression getCastFromLastForeach(String query, int expressionNum) throws FrontendException {
LOForEach foreach = getForeachFromPlan(query);
LogicalExpressionPlan foreachPlan =
((LOGenerate)foreach.getInnerPlan().getSinks().get(0)).getOutputPlans().get(expressionNum);
return getCastFromExpPlan(foreachPlan);
}
private CastExpression getCastFromExpPlan( LogicalExpressionPlan expPlan) {
CastExpression castExpr = null;
Iterator<Operator> opsIter = expPlan.getOperators();
while(opsIter.hasNext()){
Operator op = opsIter.next();
if(op instanceof CastExpression){
if(castExpr != null){
fail("more than one cast found in plan");
}
castExpr = (CastExpression) op;
}
}
return castExpr;
}
private LOForEach getForeachFromPlan(String query) throws FrontendException {
LogicalPlan plan = createAndProcessLPlan(query);
LOForEach foreach = null;
for(Operator op : plan.getSinks()){
if(op instanceof LOForEach){
if(foreach != null){
fail("more than one sink foreach found in plan");
}
foreach = (LOForEach) op;
}
}
return foreach;
}
private CastExpression getCastFromLastFilter(String query) throws FrontendException {
LOFilter filter = getFilterFromPlan(query);
LogicalExpressionPlan filterPlan = filter.getFilterPlan();
return getCastFromExpPlan(filterPlan);
}
private LOFilter getFilterFromPlan(String query) throws FrontendException {
LogicalPlan plan = createAndProcessLPlan(query);
LOFilter filter = null;
for(Operator op : plan.getSinks()){
if(op instanceof LOFilter){
if(filter != null){
fail("more than one sink foreach found in plan");
}
filter = (LOFilter) op;
}
}
return filter;
}
private LogicalPlan createAndProcessLPlan(String query) throws FrontendException {
LogicalPlan plan = generateLogicalPlan(query);
// new ProjectStarExpander(plan).visit();
new ColumnAliasConversionVisitor( plan ).visit();
// new ScalarVisitor( plan, pigContext ).visit();
CompilationMessageCollector collector = new CompilationMessageCollector() ;
new TypeCheckingRelVisitor( plan, collector).visit();
new UnionOnSchemaSetter( plan ).visit();
new CastLineageSetter(plan, collector).visit();
// new ColumnAliasConversionVisitor( plan ).visit();
// // validate
// CompilationMessageCollector collector = new CompilationMessageCollector() ;
// TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
// typeChecker.visit();
// new CastLineageSetter(plan, collector).visit();
printMessageCollector(collector) ;
plan.explain(System.out, "text", true);
if (collector.hasError()) {
throw new AssertionError("Expect no error") ;
}
return plan;
}
private LogicalPlan generateLogicalPlan(String query) {
try {
return ParserTestingUtils.generateLogicalPlan( query );
} catch(Exception ex) {
ex.printStackTrace();
Assert.fail( "Failed to generate logical plan for query [" + query + "] due to exception: " + ex );
}
return null;
}
@Test
public void testLineage1NoSchema() throws Throwable {
String query = "a = load 'a';"
+ "b = foreach a generate $1 + 1.0 ;" ;
CastExpression cast = getCastFromLastForeach(query);
assertTrue(cast.getFuncSpec().getClassName().startsWith("org.apache.pig.builtin.PigStorage"));
}
@Test
public void testLineage2() throws Throwable {
String query = "a = load 'a' as (field1, field2: float, field3: chararray );"
+ "b = foreach a generate field1 + 1.0 ;" ;
CastExpression cast = getCastFromLastForeach(query);
assertTrue(cast.getFuncSpec().getClassName().startsWith("org.apache.pig.builtin.PigStorage"));
}
@Test
public void testGroupLineage() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1 , field2: float, field3: chararray );"
+ " b = group a by field1 ;"
+ " c = foreach b generate flatten(a) ;"
+ " d = foreach c generate field1 + 1.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')");
}
/**
* check the load function in the cast in the expression in the foreach
* relation which is the final relation in the plan
* @param query
* @param loadFuncStr
* @throws FrontendException
*/
private void checkLastForeachCastLoadFunc(String query, String loadFuncStr)
throws FrontendException {
checkLastForeachCastLoadFunc(query, loadFuncStr, 0);
}
private void checkLastForeachCastLoadFunc(String query,
String loadFuncStr, int expressionNum)
throws FrontendException {
CastExpression cast = getCastFromLastForeach(query, expressionNum);
checkCastLoadFunc(cast, loadFuncStr);
}
private void checkCastLoadFunc(CastExpression cast, String loadFuncStr) {
assertNotNull(cast);
if(loadFuncStr == null){
assertNull(cast.getFuncSpec());
}
else{
assertNotNull("Expecting cast funcspec to be non null",
cast.getFuncSpec());
assertEquals("Load function string",
loadFuncStr, cast.getFuncSpec().toString());
}
}
@Test
public void testGroupLineageNoSchema() throws Throwable {
String query = "a = load 'a' using PigStorage('a') ;"
+ "b = group a by $0 ;"
+ "c = foreach b generate flatten(a) ;"
+ "d = foreach c generate $0 + 1.0 ;" ;
checkLastForeachCastLoadFunc(query, "PigStorage('a')");
}
@Test
public void testGroupLineage2() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ " b = group a by field1 ;"
+ " c = foreach b generate group + 1.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')");
}
@Test
public void testGroupLineage2NoSchema() throws Throwable {
String query = "a = load 'a' using PigStorage('a') ;"
+ "b = group a by $0 ;"
+ "c = foreach b generate group + 1.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')");
}
@Test
public void testGroupLineageStar() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (name, age, gpa);"
+ "b = group a by *;"
+ "c = foreach b generate flatten(group);"
+ "d = foreach c generate $0 + 1;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')");
}
@Test
public void testGroupLineageStarNoSchema() throws Throwable {
String query = "a = load 'a' using PigStorage('a');"
+ "b = group a by *;"
+ "c = foreach b generate flatten(group);"
+ "d = foreach c generate $0 + 1;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')");
}
@Test
public void testCogroupLineage() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage('b') as (field4, field5, field6: chararray );"
+ "c = cogroup a by field1, b by field4 ;"
+ "d = foreach c generate group, flatten(a), flatten(b) ;"
+ "e = foreach d generate group, field1 + 1, field4 + 2.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')", 1);
}
@Test
public void testCogroupMapLookupLineage() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage('b') as (field4, field5, field6: chararray );"
+ "c = cogroup a by field1, b by field4 ;"
+ "d = foreach c generate group, flatten(a), flatten(b) ;"
+ "e = foreach d generate group, field1#'key' + 1, field4 + 2.0 ;";
LogicalPlan plan = createAndProcessLPlan(query);
LOForEach foreach = (LOForEach)plan.getSinks().get(0);
LogicalExpressionPlan foreachPlan =
((LOGenerate)foreach.getInnerPlan().getSinks().get(0)).getOutputPlans().get(1);
LogicalExpression exOp = (LogicalExpression) foreachPlan.getSinks().get(0);
if(! (exOp instanceof ProjectExpression)) exOp = (LogicalExpression) foreachPlan.getSinks().get(1);
CastExpression cast1 = (CastExpression)foreachPlan.getPredecessors(exOp).get(0);
MapLookupExpression map = (MapLookupExpression)foreachPlan.getPredecessors(cast1).get(0);
checkCastLoadFunc(cast1, "PigStorage('a')");
CastExpression cast2 = (CastExpression)foreachPlan.getPredecessors(map).get(0);
checkCastLoadFunc(cast1, "PigStorage('a')");
foreachPlan = ((LOGenerate)foreach.getInnerPlan().getSinks().get(0)).getOutputPlans().get(2);
exOp = (LogicalExpression) foreachPlan.getSinks().get(0);
if(! (exOp instanceof ProjectExpression)) exOp = (LogicalExpression) foreachPlan.getSinks().get(1);
CastExpression cast = (CastExpression)foreachPlan.getPredecessors(exOp).get(0);
checkCastLoadFunc(cast, "PigStorage('b')");
}
@Test
public void testCogroupStarLineage() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'b' using PigStorage('b') as (field4, field5, field6: chararray );"
+ "c = cogroup a by *, b by * ;"
+ "d = foreach c generate group, flatten($1), flatten($2);"
+ "e = foreach d generate group, field1 + 1, field4 + 2.0;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')", 1);
checkLastForeachCastLoadFunc(query, "PigStorage('b')", 2);
}
@Test
public void testCogroupStarLineageFail() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'b' using PigStorage('b') as (field4, field5, field6: chararray );"
+ "c = cogroup a by *, b by * ;"
+ "d = foreach c generate group, flatten($1), flatten($2);"
+ "e = foreach d generate group + 1, field1 + 1, field4 + 2.0;";
LogicalPlan plan = generateLogicalPlan(query);
new ColumnAliasConversionVisitor( plan ).visit();
// validate
CompilationMessageCollector collector = new CompilationMessageCollector() ;
try {
TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
typeChecker.visit();
fail("exception expected");
} catch(TypeCheckerException pve) {
//test pass
}
printMessageCollector(collector) ;
if (!collector.hasError()) {
throw new AssertionError("Expect error") ;
}
}
@Test
public void testCogroupStarLineage1() throws Throwable {
String query = "a = load 'a' using PigStorage('x') as (field1, field2: float, field3: chararray );"
+ "b = load 'b' using PigStorage('x') as (field4, field5, field6: chararray );"
+ "c = cogroup a by *, b by * ;"
+ "d = foreach c generate flatten(group), flatten($1), flatten($2);"
+ "e = foreach d generate $0 + 1, a::field1 + 1, field4 + 2.0;";
checkLastForeachCastLoadFunc(query, "PigStorage('x')", 0);
checkLastForeachCastLoadFunc(query, "PigStorage('x')", 1);
checkLastForeachCastLoadFunc(query, "PigStorage('x')", 2);
}
@Test
public void testCogroupStarLineageNoSchemaFail() throws Throwable {
String query = "a = load 'a' using PigStorage('a') ;"
+ "b = load 'b' using PigStorage('b') ;"
+ "c = cogroup a by *, b by *;";
String exMsg= "Cogroup/Group by '*' or 'x..' " +
"(range of columns to the end) " +
"is only allowed if the input has a schema";
checkExceptionMessage(query, "c", exMsg);
}
@Test
public void testCogroupMultiColumnProjectLineage() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'b' using PigStorage('b') as (field4, field5, field6: chararray );"
+ "c = cogroup a by field1, b by field4 ;"
+ "d = foreach c generate group, a.(field1, field2), b.(field4);"
+ "e = foreach d generate group, flatten($1), flatten($2);"
+ "f = foreach e generate group, field1 + 1, field4 + 2.0;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')", 1);
checkLastForeachCastLoadFunc(query, "PigStorage('b')", 2);
}
@Test
public void testCogroupProjectStarLineage() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'b' using PigStorage('b') as (field4, field5, field6: chararray );"
+ "c = cogroup a by field1, b by field4 ;"
+ "d = foreach c generate * ;"
+ "f = foreach d generate group, flatten(a), flatten(b) ;"
+ "g = foreach f generate group, field1 + 1, field4 + 2.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')", 1);
checkLastForeachCastLoadFunc(query, "PigStorage('b')", 2);
}
@Test
public void testCogroupProjectStarLineageNoSchema() throws Throwable {
String query = "a = load 'a' using PigStorage('a') ;"
+ "b = load 'b' using PigStorage('b') ;"
+ "c = cogroup a by $0, b by $0 ;"
+ "d = foreach c generate * ;"
+ "f = foreach d generate group, flatten(a), flatten(b) ;"
+ "g = foreach f generate $0, $1 + 1, $2 + 2.0 ;";
checkLastForeachCastLoadFunc(query, null, 1);
checkLastForeachCastLoadFunc(query, null, 2);
}
@Test
public void testCogroupProjectStarLineageMixSchema() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'b' using PigStorage() ;"
+ "c = cogroup a by field1, b by $0 ;"
+ "d = foreach c generate * ;"
+ "f = foreach d generate group, flatten(a), flatten(b) ;"
+ "g = foreach f generate $0, $1 + 1, $4 + 2.0 ;";
checkLastForeachCastLoadFunc(query, null, 1);
checkLastForeachCastLoadFunc(query, null, 2);
}
@Test
public void testCogroupLineageFail() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage('b') as (field4, field5, field6: chararray );"
+ "c = cogroup a by field1, b by field4 ;"
+ "d = foreach c generate group, flatten(a), flatten(b) ;"
+ "e = foreach d generate group + 1, field1 + 1, field4 + 2.0 ;";
checkLastForeachCastLoadFunc(query, null, 0);
checkLastForeachCastLoadFunc(query, "PigStorage('a')", 1);
checkLastForeachCastLoadFunc(query, "PigStorage('b')", 2);
}
@Test
public void testCogroupLineage2NoSchema() throws Throwable {
String query = "a = load 'a' using PigStorage('a') ;"
+ "b = load 'a' using PigStorage('b') ;"
+ "c = cogroup a by $0, b by $0 ;"
+ "d = foreach c generate group, flatten(a), flatten(b) ;"
+ "e = foreach d generate $0, $1 + 1, $2 + 2.0 ;";
checkLastForeachCastLoadFunc(query, null, 1);
checkLastForeachCastLoadFunc(query, null, 2);
}
@Test
public void testUnionLineage() throws Throwable {
//here the type checker will insert a cast for the union, converting the column field2 into a float
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage('b') as (field4, field5, field6: chararray );"
+ "c = union a , b ;"
+ "d = foreach c generate field2 + 2.0 ;";
checkLastForeachCastLoadFunc(query, null);
}
@Test
public void testUnionLineageNoSchema() throws Throwable {
//if all inputs to union have same load function, set the
// load function func spec
String query = "a = load 'a' using PigStorage('a') ;"
+ "b = load 'a' using PigStorage('a') ;"
+ "c = union a , b ;"
+ "d = foreach c generate $1 + 2.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')");
}
@Test
public void testUnionLineageNoSchemaDiffLoadFunc() throws Throwable {
String query = "a = load 'a' using PigStorage('a') ;"
+ "b = load 'a' using PigStorage('b') ;"
+ "c = union a , b ;"
+ "d = foreach c generate $1 + 2.0 ;";
checkLastForeachCastLoadFunc(query, null);
}
@Test
public void testUnionLineageDifferentSchema() throws Throwable {
//here the type checker will insert a cast for the union, converting the column field2 into a float
String query = "a = load 'a' using PigStorage('\u0001') as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage('\u0001') as (field4, field5, field6: chararray, field7 );"
+ "c = union a , b ;"
+ "d = foreach c generate $3 + 2.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('\u0001')");
}
@Test
public void testUnionLineageDifferentSchemaFail() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage('b') as (field4, field5, field6: chararray, field7 );"
+ "c = union a , b ;"
+ "d = foreach c generate $3 + 2.0 ;";
checkWarning(query, CAST_LOAD_NOT_FOUND);
}
private void checkWarning(String query, String warnMsg)
throws FrontendException {
LogicalPlan plan = generateLogicalPlan(query);
new ColumnAliasConversionVisitor( plan ).visit();
// validate
CompilationMessageCollector collector = new CompilationMessageCollector() ;
TypeCheckingRelVisitor typeChecker = new TypeCheckingRelVisitor(plan, collector);
typeChecker.visit();
new CastLineageSetter(plan, collector).visit();
printMessageCollector(collector) ;
boolean isWarningSeen = false;
assertTrue("message collector has message", collector.hasMessage());
for(Message msg : collector){
if(msg.getMessageType() == MessageType.Warning
&& msg.getMessage().contains(warnMsg)){
isWarningSeen = true;
}
}
assertTrue("Expected warning is seen", isWarningSeen);
}
@Test
public void testUnionLineageMixSchema() throws Throwable {
//here the type checker will insert a cast for the union, converting the column field2 into a float
String query = "a = load 'a' using PigStorage('x') as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage('x') ;"
+ "c = union a , b ;"
+ "d = foreach c generate $3 + 2.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('x')");
}
@Test
public void testUnionLineageMixSchemaFail() throws Throwable {
// different loader func spec associated with each input, so can't determine
// which one to use on union output
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage('b') ;"
+ "c = union a , b ;"
+ "d = foreach c generate $3 + 2.0 ;";
checkWarning(query, CAST_LOAD_NOT_FOUND);
}
@Test
public void testFilterLineage() throws Throwable {
String query = "a = load 'a' as (field1, field2: float, field3: chararray );"
+ "b = filter a by field1 > 1.0 ;";
checkLastFilterCast(query, "org.apache.pig.builtin.PigStorage");
}
private void checkLastFilterCast(String query, String loadFuncStr) throws FrontendException {
LogicalPlan plan = createAndProcessLPlan(query);
LOFilter filter = (LOFilter)plan.getSinks().get(0);
LogicalExpressionPlan filterPlan = filter.getFilterPlan();
LogicalExpression exOp = (LogicalExpression)filterPlan.getSinks().get(0);
if(! (exOp instanceof ProjectExpression)) exOp = (LogicalExpression) filterPlan.getSinks().get(1);
CastExpression cast = (CastExpression)filterPlan.getPredecessors(exOp).get(0);
checkCastLoadFunc(cast, loadFuncStr);
}
@Test
public void testFilterLineageNoSchema() throws Throwable {
String query = "a = load 'a' ;"
+ "b = filter a by $0 > 1.0 ;";
checkLastFilterCast(query, "org.apache.pig.builtin.PigStorage");
}
@Test
public void testFilterLineage1() throws Throwable {
String query = "a = load 'a' as (field1, field2: float, field3: chararray );"
+ "b = filter a by field2 > 1.0 ;"
+ "c = foreach b generate field1 + 1.0 ;";
checkLastForeachCastLoadFunc(query, "org.apache.pig.builtin.PigStorage");
}
@Test
public void testFilterLineage1NoSchema() throws Throwable {
String query = "a = load 'a' ;"
+ "b = filter a by $0 > 1.0 ;"
+ "c = foreach b generate $1 + 1.0 ;";
checkLastForeachCastLoadFunc(query, "org.apache.pig.builtin.PigStorage");
}
@Test
public void testCogroupFilterLineage() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage('b') as (field4, field5, field6: chararray );"
+ "c = cogroup a by field1, b by field4 ;"
+ "d = foreach c generate group, flatten(a), flatten(b) ;"
+ "e = filter d by field4 > 5;"
+ "f = foreach e generate group, field1 + 1, field4 + 2.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')", 1);
checkLastForeachCastLoadFunc(query, "PigStorage('b')", 2);
}
@Test
public void testCogroupFilterLineageNoSchema() throws Throwable {
String query = "a = load 'a' using PigStorage('a') ;"
+ "b = load 'a' using PigStorage('b');"
+ "c = cogroup a by $0, b by $0 ;"
+ "d = foreach c generate group, flatten(a), flatten(b) ;"
+ "e = filter d by $2 > 5;"
+ "f = foreach e generate $1, $1 + 1, $2 + 2.0 ;";
checkLastForeachCastLoadFunc(query, null, 1);
checkLastForeachCastLoadFunc(query, null, 2);
}
@Test
public void testSplitLineage() throws Throwable {
String query = "a = load 'a' as (field1, field2: float, field3: chararray );"
+ "split a into b if field1 > 1.0, c if field1 <= 1.0 ;";
checkSplitLineage(query,"org.apache.pig.builtin.PigStorage", "org.apache.pig.builtin.PigStorage");
}
/**
* Check lineage in each split output (A,B), by checking the func spec
* for cast in the split output filter expression
* @param query
* @param loadFuncStrA
* @param loadFuncStrB
* @throws FrontendException
*/
private void checkSplitLineage(String query, String loadFuncStrA, String loadFuncStrB)
throws FrontendException {
LogicalPlan plan = createAndProcessLPlan(query);
LOSplitOutput splitOutputB = (LOSplitOutput)plan.getSinks().get(0);
LogicalExpressionPlan bPlan = splitOutputB.getFilterPlan();
LogicalExpression exOp = (LogicalExpression)bPlan.getSinks().get(0);
if(! (exOp instanceof ProjectExpression)) exOp = (LogicalExpression) bPlan.getSinks().get(1);
CastExpression cast = (CastExpression)bPlan.getPredecessors(exOp).get(0);
checkCastLoadFunc(cast, loadFuncStrA);
LOSplitOutput splitOutputC = (LOSplitOutput)plan.getSinks().get(0);
LogicalExpressionPlan cPlan = splitOutputC.getFilterPlan();
exOp = (LogicalExpression) cPlan.getSinks().get(0);
if(! (exOp instanceof ProjectExpression)) exOp = (LogicalExpression) cPlan.getSinks().get(1);
cast = (CastExpression)cPlan.getPredecessors(exOp).get(0);
checkCastLoadFunc(cast, loadFuncStrB);
}
@Test
public void testSplitLineageNoSchema() throws Throwable {
String query = "a = load 'a' ;"
+ "split a into b if $0 > 1.0, c if $1 <= 1.0 ;";
checkSplitLineage(query,"org.apache.pig.builtin.PigStorage", "org.apache.pig.builtin.PigStorage");
}
@Test
public void testSplitLineage1() throws Throwable {
String query = "a = load 'a' as (field1, field2, field3: chararray );"
+ "split a into b if field2 > 1.0, c if field2 <= 1.0 ;"
+ "d = foreach b generate field1 + 1.0 ;"
+ "e = foreach c generate field1 + 1.0 ;";
LogicalPlan plan = createAndProcessLPlan(query);
checkLoaderInCasts(plan, "org.apache.pig.builtin.PigStorage");
}
@Test
public void testSplitLineage1NoSchema() throws Throwable {
String query = "a = load 'a' ;"
+ "split a into b if $0 > 1.0, c if $1 <= 1.0 ;"
+ "d = foreach b generate $1 + 1.0 ;"
+ "e = foreach c generate $1 + 1.0 ;";
LogicalPlan plan = createAndProcessLPlan(query);
checkLoaderInCasts(plan, "org.apache.pig.builtin.PigStorage");
}
@Test
public void testCogroupSplitLineage() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage('b') as (field4, field5, field6: chararray );"
+ "c = cogroup a by field1, b by field4 ;"
+ "d = foreach c generate group, flatten(a), flatten(b) ;"
+ "split d into e if field4 > 'm', f if field6 > 'm' ;"
+ "g = foreach e generate group, field1 + 1, field4 + 2.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')", 1);
checkLastForeachCastLoadFunc(query, "PigStorage('b')", 2);
}
@Test
public void testCogroupSplitLineageNoSchema() throws Throwable {
String query = "a = load 'a' using PigStorage('a') ;"
+ "b = load 'a' using PigStorage('b') ;"
+ "c = cogroup a by $0, b by $0 ;"
+ "d = foreach c generate group, flatten(a), flatten(b) ;"
+ "split d into e if $1 > 'm', f if $1 > 'm' ;"
+ "g = foreach d generate $0, $1 + 1, $2 + 2.0 ;";
checkLastForeachCastLoadFunc(query, null, 1);
checkLastForeachCastLoadFunc(query, null, 2);
}
@Test
public void testDistinctLineage() throws Throwable {
String query = "a = load 'a' as (field1, field2: float, field3: chararray );"
+ "b = distinct a;"
+ "c = foreach b generate field1 + 1.0 ;";
checkLastForeachCastLoadFunc(query, "org.apache.pig.builtin.PigStorage");
}
@Test
public void testDistinctLineageNoSchema() throws Throwable {
String query = "a = load 'a' ;"
+ "b = distinct a;"
+ "c = foreach b generate $1 + 1.0 ;";
checkLastForeachCastLoadFunc(query, "org.apache.pig.builtin.PigStorage");
}
@Test
public void testCogroupDistinctLineage() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage('b') as (field4, field5, field6: chararray );"
+ "c = cogroup a by field1, b by field4 ;"
+ "d = foreach c generate group, flatten(a), flatten(b) ;"
+ "e = distinct d ;"
+ "f = foreach e generate group, field1 + 1, field4 + 2.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')", 1);
checkLastForeachCastLoadFunc(query, "PigStorage('b')", 2);
}
@Test
public void testCogroupDistinctLineageNoSchema() throws Throwable {
String query = "a = load 'a' using PigStorage('a') ;"
+ "b = load 'a' using PigStorage() ;"
+ "c = cogroup a by $0, b by $0 ;"
+ "d = foreach c generate group, flatten(a), flatten(b) ;"
+ "e = distinct d ;"
+ "f = foreach e generate $0, $1 + 1, $2 + 2.0 ;" ;
checkLastForeachCastLoadFunc(query, null, 1);
checkLastForeachCastLoadFunc(query, null, 2);
}
@Test
public void testSortLineage() throws Throwable {
String query = "a = load 'a' as (field1, field2: float, field3: chararray );"
+ "b = order a by field1;"
+ "c = foreach b generate field1 + 1.0 ;";
checkLastForeachCastLoadFunc(query, "org.apache.pig.builtin.PigStorage");
}
@Test
public void testSortLineageNoSchema() throws Throwable {
String query = "a = load 'a' ;"
+ "b = order a by $1;"
+ "c = foreach b generate $1 + 1.0 ;";
checkLastForeachCastLoadFunc(query, "org.apache.pig.builtin.PigStorage");
}
/**
* Test nested foreach with sort
* @throws Throwable
*/
@Test
public void testNestedSort() throws Throwable {
String query = "a = load 'x';" +
"b = group a by $0;" +
"c = foreach b " +
" {c1 = order $1 by $1; generate $0 + 1, flatten(c1); };";
checkLastForeachCastLoadFunc(query, "org.apache.pig.builtin.PigStorage");
}
/**
* Test nested foreach with distinct
* @throws Throwable
*/
@Test
public void testNestedDistinct() throws Throwable {
String query = "a = load '/user/pig/tests/data/singlefile/studenttab10k' as (name, age, gpa);" +
"b = group a by name; " +
"c = foreach b { aa = distinct a.age; generate group + 1, COUNT(aa); }";
checkLastForeachCastLoadFunc(query, "org.apache.pig.builtin.PigStorage");
}
@Test
public void testCogroupSortLineage() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage('b') as (field4, field5, field6: chararray );"
+ "c = cogroup a by field1, b by field4 ;"
+ "d = foreach c generate group, flatten(a), flatten(b) ;"
+ "e = order d by field4 desc;"
+ "f = foreach e generate group, field1 + 1, field4 + 2.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')", 1);
checkLastForeachCastLoadFunc(query, "PigStorage('b')", 2);
}
@Test
public void testCogroupSortLineageNoSchema() throws Throwable {
String query = "a = load 'a' using PigStorage('a');"
+ "b = load 'a' using PigStorage('b');"
+ "c = cogroup a by $0, b by $0 ;"
+ "d = foreach c generate group, flatten(a), flatten(b) ;"
+ "e = order d by $2 desc;"
+ "f = foreach e generate $0, $1 + 1, $2 + 2.0 ;";
checkLastForeachCastLoadFunc(query, null, 1);
checkLastForeachCastLoadFunc(query, null, 2);
}
@Test
public void testCogroupSortStarLineage() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage('b') as (field4, field5, field6: chararray );"
+ "c = cogroup a by field1, b by field4 ;"
+ "d = foreach c generate group, flatten(a), flatten(b) ;"
+ "e = order d by * desc;"
+ "f = foreach e generate group, field1 + 1, field4 + 2.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')", 1);
checkLastForeachCastLoadFunc(query, "PigStorage('b')", 2);
}
@Test
public void testCogroupSortStarLineageNoSchema() throws Throwable {
String query = "a = load 'a' using PigStorage('a');"
+ "b = load 'a' using PigStorage('b');"
+ "c = cogroup a by $0, b by $0 ;"
+ "d = foreach c generate group, flatten(a), flatten(b) ;"
+ "e = order d by * desc;"
+ "f = foreach e generate $0, $1 + 1, $2 + 2.0 ;";
checkLastForeachCastLoadFunc(query, null, 1);
checkLastForeachCastLoadFunc(query, null, 2);
}
@Test
public void testCrossLineage() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage('b') as (field4, field5, field6: chararray );"
+ "c = cross a, b ;"
+ "d = foreach c generate field1 + 1, field4 + 2.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')",0);
checkLastForeachCastLoadFunc(query, "PigStorage('b')",1);
}
@Test
public void testCrossLineageNoSchema() throws Throwable {
String query = "a = load 'a' using PigStorage('a') ;"
+ "b = load 'a' using PigStorage('a') ;"
+ "c = cross a , b ;"
+ "d = foreach c generate $1 + 2.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')");
}
@Test
public void testCrossLineageNoSchemaFail() throws Throwable {
String query = "a = load 'a' using PigStorage('a') ;"
+ "b = load 'a' using PigStorage('b') ;"
+ "c = cross a , b ;"
+ "d = foreach c generate $1 + 2.0 ;";
checkWarning(query, CAST_LOAD_NOT_FOUND);
}
@Test
public void testCrossLineageMixSchema() throws Throwable {
//here the type checker will insert a cast for the union, converting the column field2 into a float
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage('a') ;"
+ "c = cross a , b ;"
+ "d = foreach c generate $3 + 2.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')");
}
@Test
public void testCrossLineageMixSchemaFail() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage('b') ;"
+ "c = cross a , b ;"
+ "d = foreach c generate $3 + 2.0 ;";
checkWarning(query, CAST_LOAD_NOT_FOUND);
}
@Test
public void testJoinLineage() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage('b') as (field4, field5, field6: chararray );"
+ "c = join a by field1, b by field4 ;"
+ "d = foreach c generate field1 + 1, field4 + 2.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')", 0);
checkLastForeachCastLoadFunc(query, "PigStorage('b')", 1);
}
@Test
public void testJoinLineageNoSchema() throws Throwable {
// same load func for all inputs
String query = "a = load 'a' using PigStorage('a') ;"
+ "b = load 'a' using PigStorage('a') ;"
+ "c = join a by $0, b by $0 ;"
+ "d = foreach c generate $1 + 2.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')", 0);
}
@Test
public void testJoinLineageNoSchemaFail() throws Throwable {
//this test case should change when we decide on what flattening a tuple or bag
//with null schema results in a foreach flatten and hence a join
String query = "a = load 'a' using PigStorage('a') ;"
+ "b = load 'a' using PigStorage() ;"
+ "c = join a by $0, b by $0 ;"
+ "d = foreach c generate $1 + 2.0 ;";
checkWarning(query, CAST_LOAD_NOT_FOUND);
}
@Test
public void testJoinLineageMixSchema() throws Throwable {
String query = "a = load 'a' using PigStorage() as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage() ;"
+ "c = join a by field1, b by $0 ;"
+ "d = foreach c generate $3 + 2.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage", 0);
}
@Test
public void testJoinLineageMixSchemaFail() throws Throwable {
//this test case should change when we decide on what flattening a tuple or bag
//with null schema results in a foreach flatten and hence a join
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage() ;"
+ "c = join a by field1, b by $0 ;"
+ "d = foreach c generate $3 + 2.0 ;";
checkWarning(query, CAST_LOAD_NOT_FOUND);
}
@Test
public void testLimitLineage() throws Throwable {
String query = "a = load 'a' as (field1, field2: float, field3: chararray );"
+ "b = limit a 100;"
+ "c = foreach b generate field1 + 1.0 ;";
checkLastForeachCastLoadFunc(query, "org.apache.pig.builtin.PigStorage", 0);
}
@Test
public void testLimitLineageNoSchema() throws Throwable {
String query = "a = load 'a' ;"
+ "b = limit a 100;"
+ "c = foreach b generate $1 + 1.0 ;";
checkLastForeachCastLoadFunc(query, "org.apache.pig.builtin.PigStorage", 0);
}
@Test
public void testCogroupLimitLineage() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage('b') as (field4, field5, field6: chararray );"
+ "c = cogroup a by field1, b by field4 ;"
+ "d = foreach c generate group, flatten(a), flatten(b) ;"
+ "e = limit d 100;"
+ "f = foreach e generate group, field1 + 1, field4 + 2.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')", 1);
checkLastForeachCastLoadFunc(query, "PigStorage('b')", 2);
}
@Test
public void testCogroupLimitLineageNoSchema() throws Throwable {
String query = "a = load 'a' using PigStorage('a') ;"
+ "b = load 'a' using PigStorage('b') ;"
+ "c = cogroup a by $0, b by $0 ;"
+ "d = foreach c generate group, flatten(a), flatten(b) ;"
+ "e = limit d 100;"
+ "f = foreach e generate $0, $1 + 1, $2 + 2.0 ;";
checkLastForeachCastLoadFunc(query, null, 1);
checkLastForeachCastLoadFunc(query, null, 2);
}
@Test
public void testCogroupTopKLineage() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = load 'a' using PigStorage('b') as (field4, field5, field6: chararray );"
+ "c = cogroup a by field1, b by field4 ;"
+ "d = foreach c generate group, flatten(a), flatten(b) ;"
+ "e = order d by field1 desc;"
+ "f = limit e 100;"
+ "g = foreach f generate group, field1 + 1, field4 + 2.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')", 1);
checkLastForeachCastLoadFunc(query, "PigStorage('b')", 2);
}
@Test
public void testCogroupTopKLineageNoSchema() throws Throwable {
String query = "a = load 'a' using PigStorage('a') ;"
+ "b = load 'a' using PigStorage('b') ;"
+ "c = cogroup a by $0, b by $0 ;"
+ "d = foreach c generate group, flatten(a), flatten(b) ;"
+ "e = order d by $2 desc;"
+ "f = limit e 100;"
+ "g = foreach f generate $0, $1 + 1, $2 + 2.0 ;";
checkLastForeachCastLoadFunc(query, null, 1);
checkLastForeachCastLoadFunc(query, null, 2);
}
@Test
public void testStreamingLineage1() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1: int, field2: float, field3: chararray );"
+ "b = stream a through `" + simpleEchoStreamingCommand + "`;"
+ "c = foreach b generate $1 + 1.0 ;";
checkLastForeachCastLoadFunc(query, "org.apache.pig.builtin.PigStreaming", 0);
}
@Test
public void testStreamingLineage2() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1: int, field2: float, field3: chararray );"
+ "b = stream a through `" + simpleEchoStreamingCommand + "` as (f1, f2: float);"
+ "c = foreach b generate f1 + 1.0, f2 + 4 ;";
checkLastForeachCastLoadFunc(query, "org.apache.pig.builtin.PigStreaming", 0);
}
@Test
public void testCogroupStreamingLineage() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = stream a through `" + simpleEchoStreamingCommand + "` as (field4, field5, field6: chararray);"
+ "c = cogroup a by field1, b by field4 ;"
+ "d = foreach c generate group, flatten(a), flatten(b) ;"
+ "e = foreach d generate group, field1 + 1, field4 + 2.0 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')", 1);
checkLastForeachCastLoadFunc(query, "org.apache.pig.builtin.PigStreaming", 2);
}
@Test
public void testCogroupStreamingLineageNoSchema() throws Throwable {
String query = "a = load 'a' using PigStorage('a') ;"
+ "b = stream a through `" + simpleEchoStreamingCommand + "` ;"
+ "c = cogroup a by $0, b by $0 ;"
+ "d = foreach c generate group, flatten(a), flatten(b) ;"
+ "e = foreach d generate $0, $1 + 1, $2 + 2.0 ;";
checkLastForeachCastLoadFunc(query, null, 1);
checkLastForeachCastLoadFunc(query, null, 2);
}
@Test
public void testMapLookupLineage() throws Throwable {
String query = "a = load 'a' using PigStorage('a') as (field1, field2: float, field3: chararray );"
+ "b = foreach a generate field1#'key1' as map1;"
+ "c = foreach b generate map1#'key2' as keyval;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')", 0);
query += "d = foreach c generate keyval + 1 ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')", 0);
}
@Test
public void testMapLookupLineageNoSchema() throws Throwable {
String query = "a = load 'a' using PigStorage('a') ;"
+ "b = foreach a generate $0#'key1';"
+ "c = foreach b generate $0#'key2' ;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')", 0);
query += "d = foreach c generate $0 + 1;";
checkLastForeachCastLoadFunc(query, "PigStorage('a')", 0);
}
@Test
public void testMapLookupLineage2() throws Throwable {
String query = "a = load 'a' as (s, m, l);"
+ "b = foreach a generate s#'x' as f1, s#'y' as f2, s#'z' as f3;"
+ "c = group b by f1;"
+ "d = foreach c {fil = filter b by f2 == 1; generate flatten(group), SUM(fil.f3);};";
LOForEach foreach = getForeachFromPlan(query);
LogicalPlan innerPlan = foreach.getInnerPlan();
LOFilter filter = null;
Iterator<Operator> iter = innerPlan.getOperators();
while(iter.hasNext()){
Operator op = iter.next();
if(op instanceof LOFilter)
filter = (LOFilter)op;
}
LogicalExpressionPlan filterPlan = filter.getFilterPlan();
CastExpression cast = getCastFromExpPlan(filterPlan);
assertTrue(cast.getFuncSpec().getClassName().startsWith("org.apache.pig.builtin.PigStorage"));
}
@Test
public void testMapLookupLineage3() throws Throwable {
String query = "a= load 'a' as (s, m, l);"
+ "b = foreach a generate flatten(l#'viewinfo') as viewinfo ;"
+ "c = foreach b generate viewinfo#'pos' as position;";
checkLastForeachCastLoadFunc(query, "org.apache.pig.builtin.PigStorage", 0);
query += "d = foreach c generate (chararray)position;";
checkLastForeachCastLoadFunc(query, "org.apache.pig.builtin.PigStorage", 0);
}
/**
* test various scenarios with two level map lookup
*/
@Test
public void testTwolevelMapLookupLineage() throws Exception {
List<String[]> queries = new ArrayList<String[]>();
// CASE 1: LOAD -> FILTER -> FOREACH -> LIMIT -> STORE
queries.add(new String[] {"sds = LOAD '/my/data/location' " +
"AS (simpleFields:map[], mapFields:map[], listMapFields:map[]);",
"queries = FILTER sds BY mapFields#'page_params'#'query' " +
"is NOT NULL;",
"queries_rand = FOREACH queries GENERATE " +
"(CHARARRAY) (mapFields#'page_params'#'query') AS query_string;",
"queries_limit = LIMIT queries_rand 100;",
"STORE queries_limit INTO 'out';"});
// CASE 2: LOAD -> FOREACH -> FILTER -> LIMIT -> STORE
queries.add(new String[]{"sds = LOAD '/my/data/location' " +
"AS (simpleFields:map[], mapFields:map[], listMapFields:map[]);",
"queries_rand = FOREACH sds GENERATE " +
"(CHARARRAY) (mapFields#'page_params'#'query') AS query_string;",
"queries = FILTER queries_rand BY query_string IS NOT null;",
"queries_limit = LIMIT queries 100;",
"STORE queries_limit INTO 'out';"});
// CASE 3: LOAD -> FOREACH -> FOREACH -> FILTER -> LIMIT -> STORE
queries.add(new String[]{"sds = LOAD '/my/data/location' " +
"AS (simpleFields:map[], mapFields:map[], listMapFields:map[]);",
"params = FOREACH sds GENERATE " +
"(map[]) (mapFields#'page_params') AS params;",
"queries = FOREACH params " +
"GENERATE (CHARARRAY) (params#'query') AS query_string;",
"queries_filtered = FILTER queries BY query_string IS NOT null;",
"queries_limit = LIMIT queries_filtered 100;",
"STORE queries_limit INTO 'out';"});
// CASE 4: LOAD -> FOREACH -> FOREACH -> LIMIT -> STORE
queries.add(new String[]{"sds = LOAD '/my/data/location' " +
"AS (simpleFields:map[], mapFields:map[], listMapFields:map[]);",
"params = FOREACH sds GENERATE" +
" (map[]) (mapFields#'page_params') AS params;",
"queries = FOREACH params GENERATE " +
"(CHARARRAY) (params#'query') AS query_string;",
"queries_limit = LIMIT queries 100;",
"STORE queries_limit INTO 'out';"});
// CASE 5: LOAD -> FOREACH -> FOREACH -> FOREACH -> LIMIT -> STORE
queries.add(new String[]{"sds = LOAD '/my/data/location' " +
"AS (simpleFields:map[], mapFields:map[], listMapFields:map[]);",
"params = FOREACH sds GENERATE " +
"(map[]) (mapFields#'page_params') AS params;",
"queries = FOREACH params GENERATE " +
"(CHARARRAY) (params#'query') AS query_string;",
"rand_queries = FOREACH queries GENERATE query_string as query;",
"queries_limit = LIMIT rand_queries 100;",
"STORE rand_queries INTO 'out';"});
for (String[] query: queries) {
String fullQuery = "";
for (String queryLine : query) {
fullQuery += " " + queryLine;
}
// validate
LogicalPlan lp = createAndProcessLPlan(fullQuery);
checkLoaderInCasts(lp, "org.apache.pig.builtin.PigStorage");
}
}
@Test
public void testMapCastLineage() throws Throwable {
String query =
"a = load 'a' using PigStorage('a') as (field1 : map[], field2: float );"
+ "b = foreach a generate (map[int])field1;" ;
checkLastForeachCastLoadFunc(query, "PigStorage('a')");
}
@Test
public void testTupleCastLineage() throws Throwable {
String query =
"a = load 'a' using PigStorage('a') as (field1 : tuple(i), field2: float);"
+ "b = foreach a generate (tuple(int))field1;" ;
checkLastForeachCastLoadFunc(query, "PigStorage('a')");
}
@Test
public void testBagCastLineage() throws Throwable {
String query =
"a = load 'a' using PigStorage('a') as (field1 : bag{ t : tuple (i)}, field2: float);"
+ "b = foreach a generate (bag{tuple(int)})field1;" ;
checkLastForeachCastLoadFunc(query, "PigStorage('a')");
}
private void checkLoaderInCasts(LogicalPlan plan, String loaderClassName)
throws FrontendException
{
CastFinder cf = new CastFinder(plan);
cf.visit();
List<CastExpression> casts = cf.casts;
System.out.println("Casts found : " + casts.size());
for (CastExpression cast : casts) {
assertTrue(cast.getFuncSpec().getClassName().startsWith(
loaderClassName));
}
}
/**
* Find all casts in the plan
*/
class CastFinder extends AllExpressionVisitor {
List<CastExpression> casts = new ArrayList<CastExpression>();
public CastFinder(OperatorPlan plan)
throws FrontendException {
super(plan, new DependencyOrderWalker(plan));
}
@Override
protected LogicalExpressionVisitor getVisitor(
LogicalExpressionPlan exprPlan) throws FrontendException {
return new CastExpFinder(exprPlan, new ReverseDependencyOrderWalker(exprPlan));
}
class CastExpFinder extends LogicalExpressionVisitor{
protected CastExpFinder(OperatorPlan p, PlanWalker walker)
throws FrontendException {
super(p, walker);
}
public void visit(CastExpression cExp){
casts.add(cExp);
}
}
}
@Test
public void testBincond() throws Throwable {
String query = "a= load 'a' as (name: chararray, age: int, gpa: float);"
+ "b = group a by name;"
+ "c = foreach b generate (IsEmpty(a) ? " + TestBinCondFieldSchema.class.getName() + "(*): a) ;";
LOForEach foreach = getForeachFromPlan(query);
Schema.FieldSchema charFs = new FieldSchema(null, DataType.CHARARRAY);
Schema.FieldSchema intFs = new FieldSchema(null, DataType.INTEGER);
Schema.FieldSchema floatFs = new FieldSchema(null, DataType.FLOAT);
Schema tupleSchema= new Schema();
tupleSchema.add(charFs);
tupleSchema.add(intFs);
tupleSchema.add(floatFs);
Schema.FieldSchema bagFs = null;
Schema bagSchema = new Schema();
bagSchema.add(new FieldSchema(null, tupleSchema, DataType.TUPLE));
try {
bagFs = new Schema.FieldSchema(null, bagSchema, DataType.BAG);
} catch (FrontendException fee) {
fail("Did not expect an error");
}
Schema expectedSchema = new Schema(bagFs);
Schema foreachSch = org.apache.pig.newplan.logical.Util.translateSchema(foreach.getSchema());
assertTrue(Schema.equals(foreachSch, expectedSchema, false, true));
}
@Test
public void testBinCondForOuterJoin() throws Throwable {
String query = "a= LOAD 'student_data' AS (name: chararray, age: int, gpa: float);"
+ "b = LOAD 'voter_data' AS (name: chararray, age: int, registration: chararray, contributions: float);"
+ "c = COGROUP a BY name, b BY name;"
+ "d = FOREACH c GENERATE group, "
+ "flatten((not IsEmpty(a) ? a : (bag{tuple(chararray, int, float)}){(null, null, null)})),"
+ " flatten((not IsEmpty(b) ? b : (bag{tuple(chararray, int, chararray, float)}){(null,null,null, null)}));";
LOForEach foreach = getForeachFromPlan(query);
String expectedSchemaString = "mygroup: chararray,A::name: chararray,A::age: int," +
"A::gpa: float,B::name: chararray,B::age: int," +
"B::registration: chararray,B::contributions: float";
Schema expectedSchema = Utils.getSchemaFromString(expectedSchemaString);
Schema foreachSch = org.apache.pig.newplan.logical.Util.translateSchema(foreach.getSchema());
assertTrue(Schema.equals(foreachSch, expectedSchema, false, true));
}
@Test
public void testMapLookupCast() throws Exception {
String input[] = { "[k1#hello,k2#bye]",
"[k1#good,k2#morning]" };
File f = org.apache.pig.test.Util.createInputFile("test", ".txt", input);
String inputFileName = f.getAbsolutePath();
// load as bytearray and use as map
String query = "a= load 'file://" + inputFileName + "' as (m);"
+ " b = foreach a generate m#'k1';";
checkLastForeachCastLoadFunc(query, "org.apache.pig.builtin.PigStorage", 0);
// load as map and use as map
query = "a= load 'file://" + inputFileName + "' as (m:[]);"
+ "b = foreach a generate m#'k1';";
LOForEach foreach = getForeachFromPlan(query);
LOGenerate loGen = (LOGenerate) foreach.getInnerPlan().getSinks().get(0);
Operator outExp = loGen.getOutputPlans().get(0).getSources().get(0);
assertFalse("outExp is not cast", outExp instanceof CastExpression);
PigServer ps = new PigServer(ExecType.LOCAL);
// load as bytearray and use as map
ps.registerQuery("a = load 'file://" + inputFileName + "' as (m);");
ps.registerQuery("b = foreach a generate m#'k1';");
Iterator<Tuple> it = ps.openIterator("b");
String[] expectedResults = new String[] {"(hello)", "(good)"};
int i = 0;
while(it.hasNext()) {
assertEquals(expectedResults[i++], it.next().toString());
}
// load as map and use as map
ps.registerQuery("a = load 'file://" + inputFileName + "' as (m:[]);");
ps.registerQuery("b = foreach a generate m#'k1';");
it = ps.openIterator("b");
expectedResults = new String[] {"(hello)", "(good)"};
i = 0;
while(it.hasNext()) {
assertEquals(expectedResults[i++], it.next().toString());
}
}
/*
* A test UDF that does not data processing but implements the getOutputSchema for
* checking the type checker
*/
public static class TestBinCondFieldSchema extends EvalFunc<DataBag> {
//no-op exec method
@Override
public DataBag exec(Tuple input) {
return null;
}
@Override
public Schema outputSchema(Schema input) {
Schema.FieldSchema charFs = new FieldSchema(null, DataType.CHARARRAY);
Schema.FieldSchema intFs = new FieldSchema(null, DataType.INTEGER);
Schema.FieldSchema floatFs = new FieldSchema(null, DataType.FLOAT);
Schema bagSchema = new Schema();
bagSchema.add(charFs);
bagSchema.add(intFs);
bagSchema.add(floatFs);
Schema.FieldSchema bagFs;
try {
bagFs = new Schema.FieldSchema(null, bagSchema, DataType.BAG);
} catch (FrontendException fee) {
return null;
}
return new Schema(bagFs);
}
}
////////////////////////// Helper //////////////////////////////////
private void checkForEachCasting(LOForEach foreach, int idx, boolean isCast, byte toType)
throws FrontendException {
LOGenerate gen = (LOGenerate) foreach.getInnerPlan().getSinks().get(0) ;
LogicalExpressionPlan plan = gen.getOutputPlans().get(idx);
if (isCast) {
List<Operator> leaveList = plan.getSources() ;
assertEquals(leaveList.size(), 1);
assertTrue(leaveList.get(0) instanceof CastExpression);
assertTrue(((LogicalExpression)leaveList.get(0)).getType() == toType) ;
}
else {
List<Operator> leaveList = plan.getSources() ;
assertEquals(leaveList.size(), 1);
assertTrue(leaveList.get(0) instanceof ProjectExpression);
}
}
@Test
public void testLineageMultipleLoader1() throws FrontendException {
String query = "A = LOAD 'data1' USING PigStorage() AS (u, v, w);"
+ "B = LOAD 'data2' USING TextLoader() AS (x, y);"
+ "C = JOIN A BY u, B BY x USING 'replicated';"
+ "D = GROUP C BY (u, x);"
+ "E = FOREACH D GENERATE (chararray)group.u, (int)group.x;" ;
checkLastForeachCastLoadFunc(query, "PigStorage", 0);
checkLastForeachCastLoadFunc(query, "TextLoader", 1);
}
/**
* From JIRA 1482
* @throws FrontendException
*/
@Test
public void testLineageMultipleLoader2() throws FrontendException {
String query = "A = LOAD 'data1' USING PigStorage() AS (s, m, l);"
+ "B = FOREACH A GENERATE s#'k1' as v1, m#'k2' as v2, l#'k3' as v3;"
+ "C = FOREACH B GENERATE v1, (v2 == 'v2' ? 1L : 0L) as v2:long, (v3 == 'v3' ? 1 :0) as v3:int;"
+ "D = LOAD 'data2' USING TextLoader() AS (a);"
+ "E = JOIN C BY v1, D BY a USING 'replicated';"
+ "F = GROUP E BY (v1, a);"
+ "G = FOREACH F GENERATE (chararray)group.v1, group.a;" ;
checkLastForeachCastLoadFunc(query, "PigStorage", 0);
}
/**
* A special invalid case.
*/
@Test
public void testLineageMultipleLoader3() throws FrontendException {
String query = "A = LOAD 'data1' USING PigStorage() AS (u, v, w);"
+ "B = LOAD 'data2' USING TextLoader() AS (x, y);"
+ "C = COGROUP A BY u, B by x;"
+ "D = FOREACH C GENERATE (chararray)group;" ;
checkWarning(query, CAST_LOAD_NOT_FOUND);
}
/**
* In case of filter with tuple type
*/
@Test
public void testLineageFilterWithTuple() throws FrontendException {
String query = "A= LOAD 'data1' USING PigStorage() AS (u, v, w:tuple(a,b));"
+ "B = FOREACH A generate v, w;"
+ "C = FILTER B by v < 50;"
+ "D = FOREACH C generate (int)w.a;";
checkLastForeachCastLoadFunc(query, "PigStorage", 0);
}
@Test
public void testLineageExpressionCasting() throws FrontendException {
String query = "A= LOAD 'data1' USING PigStorage() AS (u:int, v);"
+ "B = FILTER A by u < 50;"
+ "C = FOREACH B generate u + v;";
LogicalPlan plan = createAndProcessLPlan(query);
checkLoaderInCasts(plan, "PigStorage");
}
@Test
// See PIG-1741
public void testBagDereference() throws FrontendException {
String query = "a= load '1.txt' as (a0) ;"
+ "b = foreach a generate flatten((bag{tuple(map[])})a0) as b0:map[];"
+ "c = foreach b generate (long)b0#'key1';";
LogicalPlan plan = createAndProcessLPlan(query);
checkLoaderInCasts(plan, PigStorage.class.getName());
}
@Test
public void testColumnWithinNonTupleBag() throws IOException {
{
String query =
" l = load 'x' as (i : int);" +
" f = foreach l generate i.$0; ";
Util.checkExceptionMessage(query, "f",
"Referring to column(s) within a column of type " +
"int is not allowed"
);
}
{
String query =
" l = load 'x' as (i : map[]);" +
" f = foreach l generate i.$0; ";
Util.checkExceptionMessage(query, "f",
"Referring to column(s) within a column of type " +
"map is not allowed"
);
}
}
// See PIG-1929
@Test
public void testCompareTupleFail() throws Throwable {
String query = "a = load 'a' as (t : (i : int, j : int)) ;"
+ "b = filter a by t > (1,2);";
String exMsg= "In alias b, incompatible types in GreaterThan Operator" +
" left hand side:tuple i:int,j:int " +
" right hand side:tuple :int,:int";
checkExceptionMessage(query, "b", exMsg);
}
@Test
public void testCompareEqualityTupleCast() throws Throwable {
//test if bytearray col gets casted to tuple
String query = "a = load 'a' as (t : (i : int, j : int), col) ;"
+ "b = filter a by t == col;";
CastExpression castExp = getCastFromLastFilter(query);
assertNotNull("cast ", castExp);
assertEquals("cast type", castExp.getType(), DataType.TUPLE);
}
@Test
public void testCompareEqualityMapCast() throws Throwable {
//test if bytearray col gets casted to map
String query = "a = load 'a' as (t : map[], col) ;"
+ "b = filter a by t != col;";
CastExpression castExp = getCastFromLastFilter(query);
assertNotNull("cast ", castExp);
assertEquals("cast type", castExp.getType(), DataType.MAP);
}
@Test
public void testCompareEqualityMapIntegerFail() throws Throwable {
//test if failure is reported on use of incompatible type
String query = "a = load 'a' as (t1 :map[], t2 : int) ;"
+ "b = filter a by t1 == t2;";
String exMsg= "In alias b, incompatible types in Equal " +
"Operator left hand side:map right hand side:int";
checkExceptionMessage(query, "b", exMsg);
}
// See PIG-1929
@Test
public void testCompareMapFail() throws Throwable {
String query = "a = load 'a' as (t1 :map[], t2 : map[]) ;"
+ "b = filter a by t1 <= t2;";
String exMsg= "In alias b, incompatible types in LessThanEqual " +
"Operator left hand side:map right hand side:map";
checkExceptionMessage(query, "b", exMsg);
}
// See PIG-1929
@Test
public void testCompareBagFail() throws Throwable {
String query = "a = load 'a' as (t1 :bag{()}, t2 : bag{()}) ;"
+ "b = filter a by t1 <= t2;";
String exMsg= "In alias b, incompatible types in LessThanEqual " +
"Operator left hand side:bag :tuple() right hand side:bag :tuple()";
checkExceptionMessage(query, "b", exMsg);
}
// See PIG-1929
@Test
public void testCompareNULL() throws Throwable {
{
//equality & null
String query = "a = load 'a' as (t1 : int) ;"
+ "b = filter a by null == t1;";
CastExpression castExp = getCastFromLastFilter(query);
assertNotNull("cast ", castExp);
assertEquals("cast type", castExp.getType(), DataType.INTEGER);
}
{
//equality & null & complex type
String query = "a = load 'a' as (t1 : (i : int)) ;"
+ "b = filter a by null == t1;";
CastExpression castExp = getCastFromLastFilter(query);
assertNotNull("cast ", castExp);
assertEquals("cast type", castExp.getType(), DataType.TUPLE);
}
{
String query = "a = load 'a' as (t1 : int) ;"
+ "b = filter a by t1 <= null;";
CastExpression castExp = getCastFromLastFilter(query);
assertNotNull("cast ", castExp);
assertEquals("cast type", castExp.getType(), DataType.INTEGER);
}
}
// See PIG-2004
@Test
public void testDereferenceTypeSet() throws IOException, ParserException {
String query = "a = load 'a' as (i : int, j : int) ;"
+ " b = foreach a generate i, j/10.1 as jd;"
+ " c = group b by i;"
+ " d = foreach c generate MAX(b.jd) as mx;";
PigServer pig = new PigServer(ExecType.LOCAL);
Util.registerMultiLineQuery(pig, query);
Schema expectedSch =
Utils.getSchemaFromString("mx: double");
Schema sch = pig.dumpSchema("d");
assertEquals("Checking expected schema", expectedSch, sch);
}
public static class TestUDFTupleNullInnerSchema extends EvalFunc<Tuple> {
@Override
public Tuple exec(Tuple input) throws IOException {
return null;
}
}
@Test
public void testUDFNoInnerSchema() throws FrontendException {
String query = "a= load '1.txt';"
+ "b = foreach a generate "+TestUDFTupleNullInnerSchema.class.getName()+"($0);"
+ "c = foreach b generate flatten($0);"
+ "d = foreach c generate $0 + 1;";
checkLastForeachCastLoadFunc(query, null, 0);
}
//see PIG-1990
@Test
public void testCastEmptyInnerSchema() throws IOException, ParserException{
final String INP_FILE = "testCastEmptyInnerSchema.txt";
PrintWriter w = new PrintWriter(new FileWriter(INP_FILE));
w.println("(1,2)");
w.println("(2,3)");
w.close();
PigServer pigServer = new PigServer(LOCAL);
String query = "a = load '" + INP_FILE + "' as (t:tuple());" +
"b = foreach a generate (tuple(int, long))t;" +
"c = foreach b generate t.$0 + t.$1;";
Util.registerMultiLineQuery(pigServer, query);
List<Tuple> expectedRes =
Util.getTuplesFromConstantTupleStrings(
new String[] {
"(3L)",
"(5L)",
});
Iterator<Tuple> it = pigServer.openIterator("c");
Util.checkQueryOutputs(it, expectedRes);
}
//see PIG-2018
@Test
public void testCoGroupComplex(){
String query =
"l1 = load 'x' using PigStorage(':') as (a : (i : int),b,c);"
+ "l2 = load 'x' as (a,b,c);"
+ "cg = cogroup l1 by a, l2 by a;";
try {
createAndProcessLPlan(query);
} catch (FrontendException e) {
fail("caught exception creating lp");
}
}
@Test //PIG-2070
public void testJoinIncompatType() throws IOException{
String query = "a = load '1.txt' as (a0:map [], a1:int);" +
"b = load '2.txt' as (a0:int, a1:int);" +
"c = join a by (a0, a1), b by (a0,a1);";
String msg =
"join column no. 1 in relation no. 2 of join statement" +
" has datatype int which is incompatible with type of" +
" corresponding column in earlier relation(s) in the statement";
Util.checkExceptionMessage(query, "c", msg);
}
}