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package com.salesforce.phoenix.compile;
import static com.salesforce.phoenix.util.TestUtil.TEST_PROPERTIES;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import org.apache.hadoop.hbase.client.Scan;
import org.junit.Test;
import com.salesforce.phoenix.compile.GroupByCompiler.GroupBy;
import com.salesforce.phoenix.expression.Expression;
import com.salesforce.phoenix.jdbc.PhoenixConnection;
import com.salesforce.phoenix.jdbc.PhoenixStatement;
import com.salesforce.phoenix.parse.SQLParser;
import com.salesforce.phoenix.parse.SelectStatement;
import com.salesforce.phoenix.query.BaseConnectionlessQueryTest;
import com.salesforce.phoenix.schema.PDataType;
import com.salesforce.phoenix.util.ByteUtil;
public class LimitClauseTest extends BaseConnectionlessQueryTest {
private static Integer compileStatement(String query, List<Object> binds, Scan scan) throws SQLException {
SQLParser parser = new SQLParser(query);
SelectStatement statement = parser.parseQuery();
PhoenixConnection pconn = DriverManager.getConnection(getUrl(), TEST_PROPERTIES).unwrap(PhoenixConnection.class);
ColumnResolver resolver = FromCompiler.getResolver(statement, pconn);
statement = StatementNormalizer.normalize(statement, resolver);
StatementContext context = new StatementContext(new PhoenixStatement(pconn), resolver, binds, scan);
Integer limit = LimitCompiler.compile(context, statement);
GroupBy groupBy = GroupByCompiler.compile(context, statement);
statement = HavingCompiler.rewrite(context, statement, groupBy);
HavingCompiler.compile(context, statement, groupBy);
Expression where = WhereCompiler.compile(context, statement);
assertNull(where);
return limit;
}
@Test
public void testLimit() throws SQLException {
String tenantId = "000000000000001";
String query = "select * from atable where organization_id='" + tenantId + "' limit 5";
Scan scan = new Scan();
List<Object> binds = Collections.emptyList();
Integer limit = compileStatement(query, binds, scan);
assertArrayEquals(PDataType.VARCHAR.toBytes(tenantId), scan.getStartRow());
assertArrayEquals(ByteUtil.nextKey(PDataType.VARCHAR.toBytes(tenantId)), scan.getStopRow());
assertEquals(limit,Integer.valueOf(5));
}
@Test
public void testNoLimit() throws SQLException {
String tenantId = "000000000000001";
String query = "select * from atable where organization_id='" + tenantId + "'";
Scan scan = new Scan();
List<Object> binds = Collections.emptyList();
Integer limit = compileStatement(query, binds, scan);
assertNull(limit);
assertArrayEquals(PDataType.VARCHAR.toBytes(tenantId), scan.getStartRow());
assertArrayEquals(ByteUtil.nextKey(PDataType.VARCHAR.toBytes(tenantId)), scan.getStopRow());
}
@Test
public void testBoundLimit() throws SQLException {
String tenantId = "000000000000001";
String query = "select * from atable where organization_id='" + tenantId + "' limit ?";
Scan scan = new Scan();
List<Object> binds = Arrays.<Object>asList(5);
Integer limit = compileStatement(query, binds, scan);
assertArrayEquals(PDataType.VARCHAR.toBytes(tenantId), scan.getStartRow());
assertArrayEquals(ByteUtil.nextKey(PDataType.VARCHAR.toBytes(tenantId)), scan.getStopRow());
assertEquals(limit,Integer.valueOf(5));
}
@Test
public void testTypeMismatchBoundLimit() throws SQLException {
String query = "select * from atable limit ?";
SQLParser parser = new SQLParser(query);
SelectStatement statement = parser.parseQuery();
Scan scan = new Scan();
List<Object> binds = Arrays.<Object>asList("foo");
PhoenixConnection pconn = DriverManager.getConnection(getUrl(), TEST_PROPERTIES).unwrap(PhoenixConnection.class);
ColumnResolver resolver = FromCompiler.getResolver(statement, pconn);
StatementContext context = new StatementContext(new PhoenixStatement(pconn), resolver, binds, scan);
try {
LimitCompiler.compile(context, statement);
fail();
} catch (SQLException e) {
assertTrue(e.getMessage().contains("Type mismatch"));
}
}
@Test
public void testNegativeBoundLimit() throws SQLException {
String query = "select * from atable limit ?";
SQLParser parser = new SQLParser(query);
SelectStatement statement = parser.parseQuery();
Scan scan = new Scan();
List<Object> binds = Arrays.<Object>asList(-1);
PhoenixConnection pconn = DriverManager.getConnection(getUrl(), TEST_PROPERTIES).unwrap(PhoenixConnection.class);
ColumnResolver resolver = FromCompiler.getResolver(statement, pconn);
StatementContext context = new StatementContext(new PhoenixStatement(pconn), resolver, binds, scan);
assertNull(LimitCompiler.compile(context, statement));
}
@Test
public void testBindTypeMismatch() throws SQLException {
Long tenantId = Long.valueOf(0);
String keyPrefix = "002";
List<Object> binds = Arrays.<Object>asList(tenantId,keyPrefix);
String query = "select * from atable where organization_id=? and substr(entity_id,1,3)=?";
SQLParser parser = new SQLParser(query);
SelectStatement statement = parser.parseQuery();
Scan scan = new Scan();
PhoenixConnection pconn = DriverManager.getConnection(getUrl(), TEST_PROPERTIES).unwrap(PhoenixConnection.class);
ColumnResolver resolver = FromCompiler.getResolver(statement, pconn);
StatementContext context = new StatementContext(new PhoenixStatement(pconn), resolver, binds, scan);
try {
WhereCompiler.compile(context, statement);
fail();
} catch (SQLException e) {
assertTrue(e.getMessage(), e.getMessage().contains("ERROR 203 (22005): Type mismatch."));
}
}
}