| /* |
| * 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 org.apache.calcite.config.Lex; |
| import org.apache.calcite.jdbc.CalciteSchema; |
| import org.apache.calcite.tools.FrameworkConfig; |
| import org.apache.calcite.tools.Frameworks; |
| import org.apache.calcite.tools.Planner; |
| |
| import org.apache.drill.categories.SqlTest; |
| import org.apache.drill.exec.planner.physical.PlannerSettings; |
| 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.BaseTest; |
| import org.apache.drill.test.DrillAssert; |
| import org.apache.calcite.sql.SqlNode; |
| import org.apache.calcite.sql.parser.SqlParser; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| @Category(SqlTest.class) |
| public class TestSqlBracketlessSyntax extends BaseTest { |
| static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(TestSqlBracketlessSyntax.class); |
| |
| @Test |
| public void checkComplexExpressionParsing() throws Exception{ |
| FrameworkConfig config = Frameworks.newConfigBuilder() // |
| .parserConfig(SqlParser.configBuilder() |
| .setLex(Lex.MYSQL) |
| .setIdentifierMaxLength(PlannerSettings.DEFAULT_IDENTIFIER_MAX_LENGTH) |
| .setParserFactory(DrillParserImpl.FACTORY) |
| .build()) // |
| .defaultSchema(CalciteSchema.createRootSchema(false, false).plus()) // |
| .convertletTable(DrillConvertletTable.INSTANCE) // |
| .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(false)); |
| String rewrittenQuery = rewritten.toString(); |
| |
| DrillAssert.assertMultiLineStringEquals(expected, rewrittenQuery); |
| } |
| |
| |
| } |