/**
* 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.drill.exec.sql;
import net.hydromatic.optiq.config.Lex;
import net.hydromatic.optiq.jdbc.SimpleOptiqSchema;
import net.hydromatic.optiq.tools.FrameworkConfig;
import net.hydromatic.optiq.tools.Frameworks;
import net.hydromatic.optiq.tools.Planner;
import org.apache.drill.exec.planner.sql.DrillConvertletTable;
import org.apache.drill.exec.planner.sql.parser.CompoundIdentifierConverter;
import org.apache.drill.exec.planner.sql.parser.impl.DrillParserImpl;
import org.apache.drill.test.DrillAssert;
import org.eigenbase.sql.SqlNode;
import org.junit.Test;
public class TestSqlBracketlessSyntax {
static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(TestSqlBracketlessSyntax.class);
@Test
public void checkComplexExpressionParsing() throws Exception{
FrameworkConfig config = Frameworks.newConfigBuilder() //
.lex(Lex.MYSQL) //
.parserFactory(DrillParserImpl.FACTORY) //
.defaultSchema(SimpleOptiqSchema.createRootSchema(false)) //
.convertletTable(new DrillConvertletTable()) //
.build();
Planner planner = Frameworks.getPlanner(config);
SqlNode node = planner.parse(""
+ "select a[4].c \n"
+ "from x.y.z \n"
+ "where a.c.b = 5 and x[2] = 7 \n"
+ "group by d \n"
+ "having a.c < 5 \n"
+ "order by x.a.a.a.a.a");
String expected = "SELECT `a`[4]['c']\n" +
"FROM `x`.`y`.`z`\n" +
"WHERE `a`.`c`['b'] = 5 AND `x`[2] = 7\n" +
"GROUP BY `d`\n" +
"HAVING `a`.`c` < 5\n" +
"ORDER BY `x`.`a`['a']['a']['a']['a']";
SqlNode rewritten = node.accept(new CompoundIdentifierConverter());
String rewrittenQuery = rewritten.toString();
DrillAssert.assertMultiLineStringEquals(expected, rewrittenQuery);
}
}