text: /*
   * 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.flink.table.planner.plan.rules.logical
  
  import org.apache.flink.api.scala._
  import org.apache.flink.table.api._
  import org.apache.flink.table.planner.plan.optimize.program.{FlinkBatchProgram, FlinkHepRuleSetProgramBuilder, HEP_RULES_EXECUTION_TYPE}
  import org.apache.flink.table.planner.utils.{TableConfigUtils, TableTestBase}
  
  import org.apache.calcite.plan.hep.HepMatchOrder
  import org.apache.calcite.rel.rules.FilterJoinRule
  import org.apache.calcite.tools.RuleSets
  import org.junit.{Before, Test}
  
  
  /**
    * Test for [[JoinDependentConditionDerivationRule]].
    */
  class JoinDependentConditionDerivationRuleTest extends TableTestBase {
  
    private val util = batchTestUtil()
  
    @Before
    def setup(): Unit = {
      util.buildBatchProgram(FlinkBatchProgram.DEFAULT_REWRITE)
      val calciteConfig = TableConfigUtils.getCalciteConfig(util.tableEnv.getConfig)
      calciteConfig.getBatchProgram.get.addLast(
        "rules",
        FlinkHepRuleSetProgramBuilder.newBuilder
          .setHepRulesExecutionType(HEP_RULES_EXECUTION_TYPE.RULE_SEQUENCE)
          .setHepMatchOrder(HepMatchOrder.BOTTOM_UP)
          .add(RuleSets.ofList(
            FilterJoinRule.FILTER_ON_JOIN,
            FilterJoinRule.JOIN,
            JoinDependentConditionDerivationRule.INSTANCE))
          .build()
      )
  
      util.addTableSource[(Int, Long, String)]("MyTable1", 'a, 'b, 'c)
      util.addTableSource[(Int, Long, Int, String, Long)]("MyTable2", 'd, 'e, 'f, 'g, 'h)
    }
  
    @Test
    def testSimple(): Unit = {
      val sqlQuery =
        "SELECT a, d FROM MyTable1, MyTable2 WHERE (a = 1 AND d = 2) OR (a = 2 AND d = 1)"
      util.verifyPlan(sqlQuery)
    }
  
    @Test
    def testAnd(): Unit = {
      val sqlQuery =
        "SELECT a, d FROM MyTable1, MyTable2 WHERE b = e AND ((a = 1 AND d = 2) OR (a = 2 AND d = 1))"
      util.verifyPlan(sqlQuery)
    }
  
    @Test
    def testCanNotMatchThisRule(): Unit = {
      val sqlQuery =
        "SELECT a, d FROM MyTable1, MyTable2 WHERE b = e OR ((a = 1 AND d = 2) OR (a = 2 AND d = 1))"
      util.verifyPlan(sqlQuery)
    }
  
    @Test
    def testThreeOr(): Unit = {
      val sqlQuery = "SELECT a, d FROM MyTable1, MyTable2 WHERE " +
        "(b = e AND a = 0) OR ((a = 1 AND d = 2) OR (a = 2 AND d = 1))"
      util.verifyPlan(sqlQuery)
    }
  
    @Test
    def testAndOr(): Unit = {
      val sqlQuery = "SELECT a, d FROM MyTable1, MyTable2 WHERE " +
        "((a = 1 AND d = 2) OR (a = 2 AND d = 1)) AND ((a = 3 AND d = 4) OR (a = 4 AND d = 3))"
      util.verifyPlan(sqlQuery)
    }
  
    @Test
    def testMultiFields(): Unit = {
      val sqlQuery = "SELECT a, d FROM MyTable1, MyTable2 WHERE " +
        "(a = 1 AND b = 1 AND d = 2 AND e = 2) OR (a = 2 AND b = 2 AND d = 1 AND e = 1)"
      util.verifyPlan(sqlQuery)
    }
  
    @Test
    def testMultiSingleSideFields(): Unit = {
      val sqlQuery = "SELECT a, d FROM MyTable1, MyTable2 WHERE " +
        "(a = 1 AND b = 1 AND d = 2 AND e = 2) OR (d = 1 AND e = 1)"
      util.verifyPlan(sqlQuery)
    }
  
    @Test
    def testMultiJoins(): Unit = {
      val sqlQuery =
        """
          |SELECT T1.a, T2.d FROM MyTable1 T1,
          |  (SELECT * FROM MyTable1, MyTable2 WHERE a = d) T2 WHERE
          |(T1.a = 1 AND T1.b = 1 AND T2.a = 2 AND T2.e = 2)
          |OR
          |(T1.a = 2 AND T2.b = 2 AND T2.d = 1 AND T2.e = 1)
        """.stripMargin
      util.verifyPlan(sqlQuery)
    }
  
  }
  