[
https://issues.apache.org/jira/browse/FLINK-22016?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Kurt Young closed FLINK-22016.
------------------------------
Resolution: Fixed
fixed: 1562ed02796798ad450b3d4a778974ec086e0419
> PushFilterIntoTableSourceScanRule fails to deal with NULLs
> ----------------------------------------------------------
>
> Key: FLINK-22016
> URL: https://issues.apache.org/jira/browse/FLINK-22016
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Planner
> Affects Versions: 1.13.0
> Reporter: Caizhi Weng
> Assignee: Caizhi Weng
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.13.0
>
>
> Add the following test case to {{PushFilterIntoTableSourceScanRuleTest}} to
> reproduce this bug:
> {code:java}
> @Test
> public void myTest() {
> String ddl =
> "CREATE TABLE MTable ("
> + " a STRING,"
> + " b STRING"
> + ") WITH ("
> + " 'connector' = 'values',"
> + " 'bounded' = 'true'"
> + ")";
> util().tableEnv().executeSql(ddl);
> util().verifyRelPlan("WITH MView AS (SELECT CASE\n"
> + " WHEN a = b THEN a\n"
> + " ELSE CAST(NULL AS STRING)\n"
> + " END AS a\n"
> + " FROM MTable)\n"
> + "SELECT a FROM MView WHERE a IS NOT NULL");
> }
> {code}
> The exception stack is
> {code}
> org.apache.flink.table.api.ValidationException: Data type 'STRING NOT NULL'
> does not support null values.
> at
> org.apache.flink.table.expressions.ValueLiteralExpression.validateValueDataType(ValueLiteralExpression.java:272)
> at
> org.apache.flink.table.expressions.ValueLiteralExpression.<init>(ValueLiteralExpression.java:79)
> at
> org.apache.flink.table.expressions.ApiExpressionUtils.valueLiteral(ApiExpressionUtils.java:251)
> at
> org.apache.flink.table.planner.plan.utils.RexNodeToExpressionConverter.visitLiteral(RexNodeExtractor.scala:463)
> at
> org.apache.flink.table.planner.plan.utils.RexNodeToExpressionConverter.visitLiteral(RexNodeExtractor.scala:361)
> at org.apache.calcite.rex.RexLiteral.accept(RexLiteral.java:1173)
> at
> org.apache.flink.table.planner.plan.utils.RexNodeToExpressionConverter$$anonfun$8.apply(RexNodeExtractor.scala:471)
> at
> org.apache.flink.table.planner.plan.utils.RexNodeToExpressionConverter$$anonfun$8.apply(RexNodeExtractor.scala:471)
> at
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
> at
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
> at scala.collection.Iterator$class.foreach(Iterator.scala:891)
> at scala.collection.AbstractIterator.foreach(Iterator.scala:1334)
> at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
> at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
> at scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
> at scala.collection.AbstractTraversable.map(Traversable.scala:104)
> at
> org.apache.flink.table.planner.plan.utils.RexNodeToExpressionConverter.visitCall(RexNodeExtractor.scala:470)
> at
> org.apache.flink.table.planner.plan.utils.RexNodeToExpressionConverter.visitCall(RexNodeExtractor.scala:361)
> at org.apache.calcite.rex.RexCall.accept(RexCall.java:174)
> at
> org.apache.flink.table.planner.plan.utils.RexNodeToExpressionConverter$$anonfun$8.apply(RexNodeExtractor.scala:471)
> at
> org.apache.flink.table.planner.plan.utils.RexNodeToExpressionConverter$$anonfun$8.apply(RexNodeExtractor.scala:471)
> at
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
> at
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
> at scala.collection.Iterator$class.foreach(Iterator.scala:891)
> at scala.collection.AbstractIterator.foreach(Iterator.scala:1334)
> at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
> at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
> at scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
> at scala.collection.AbstractTraversable.map(Traversable.scala:104)
> at
> org.apache.flink.table.planner.plan.utils.RexNodeToExpressionConverter.visitCall(RexNodeExtractor.scala:470)
> at
> org.apache.flink.table.planner.plan.utils.RexNodeToExpressionConverter.visitCall(RexNodeExtractor.scala:361)
> at org.apache.calcite.rex.RexCall.accept(RexCall.java:174)
> at
> org.apache.flink.table.planner.plan.utils.RexNodeExtractor$$anonfun$extractConjunctiveConditions$1.apply(RexNodeExtractor.scala:138)
> at
> org.apache.flink.table.planner.plan.utils.RexNodeExtractor$$anonfun$extractConjunctiveConditions$1.apply(RexNodeExtractor.scala:137)
> at scala.collection.Iterator$class.foreach(Iterator.scala:891)
> at scala.collection.AbstractIterator.foreach(Iterator.scala:1334)
> at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
> at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
> at
> org.apache.flink.table.planner.plan.utils.RexNodeExtractor$.extractConjunctiveConditions(RexNodeExtractor.scala:137)
> at
> org.apache.flink.table.planner.plan.utils.RexNodeExtractor.extractConjunctiveConditions(RexNodeExtractor.scala)
> at
> org.apache.flink.table.planner.plan.rules.logical.PushFilterIntoTableSourceScanRule.pushFilterIntoScan(PushFilterIntoTableSourceScanRule.java:121)
> at
> org.apache.flink.table.planner.plan.rules.logical.PushFilterIntoTableSourceScanRule.onMatch(PushFilterIntoTableSourceScanRule.java:100)
> at
> org.apache.calcite.plan.AbstractRelOptPlanner.fireRule(AbstractRelOptPlanner.java:333)
> at org.apache.calcite.plan.hep.HepPlanner.applyRule(HepPlanner.java:542)
> at
> org.apache.calcite.plan.hep.HepPlanner.applyRules(HepPlanner.java:407)
> at
> org.apache.calcite.plan.hep.HepPlanner.executeInstruction(HepPlanner.java:271)
> at
> org.apache.calcite.plan.hep.HepInstruction$RuleCollection.execute(HepInstruction.java:74)
> at
> org.apache.calcite.plan.hep.HepPlanner.executeProgram(HepPlanner.java:202)
> at
> org.apache.calcite.plan.hep.HepPlanner.findBestExp(HepPlanner.java:189)
> at
> org.apache.flink.table.planner.plan.optimize.program.FlinkHepProgram.optimize(FlinkHepProgram.scala:69)
> at
> org.apache.flink.table.planner.plan.optimize.program.FlinkHepRuleSetProgram.optimize(FlinkHepRuleSetProgram.scala:87)
> at
> org.apache.flink.table.planner.plan.optimize.program.FlinkChainedProgram$$anonfun$optimize$1.apply(FlinkChainedProgram.scala:62)
> at
> org.apache.flink.table.planner.plan.optimize.program.FlinkChainedProgram$$anonfun$optimize$1.apply(FlinkChainedProgram.scala:58)
> at
> scala.collection.TraversableOnce$$anonfun$foldLeft$1.apply(TraversableOnce.scala:157)
> at
> scala.collection.TraversableOnce$$anonfun$foldLeft$1.apply(TraversableOnce.scala:157)
> at scala.collection.Iterator$class.foreach(Iterator.scala:891)
> at scala.collection.AbstractIterator.foreach(Iterator.scala:1334)
> at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
> at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
> at
> scala.collection.TraversableOnce$class.foldLeft(TraversableOnce.scala:157)
> at scala.collection.AbstractTraversable.foldLeft(Traversable.scala:104)
> at
> org.apache.flink.table.planner.plan.optimize.program.FlinkChainedProgram.optimize(FlinkChainedProgram.scala:57)
> at
> org.apache.flink.table.planner.plan.optimize.BatchCommonSubGraphBasedOptimizer.optimizeTree(BatchCommonSubGraphBasedOptimizer.scala:87)
> at
> org.apache.flink.table.planner.plan.optimize.BatchCommonSubGraphBasedOptimizer.org$apache$flink$table$planner$plan$optimize$BatchCommonSubGraphBasedOptimizer$$optimizeBlock(BatchCommonSubGraphBasedOptimizer.scala:58)
> at
> org.apache.flink.table.planner.plan.optimize.BatchCommonSubGraphBasedOptimizer$$anonfun$doOptimize$1.apply(BatchCommonSubGraphBasedOptimizer.scala:46)
> at
> org.apache.flink.table.planner.plan.optimize.BatchCommonSubGraphBasedOptimizer$$anonfun$doOptimize$1.apply(BatchCommonSubGraphBasedOptimizer.scala:46)
> at scala.collection.immutable.List.foreach(List.scala:392)
> at
> org.apache.flink.table.planner.plan.optimize.BatchCommonSubGraphBasedOptimizer.doOptimize(BatchCommonSubGraphBasedOptimizer.scala:46)
> at
> org.apache.flink.table.planner.plan.optimize.CommonSubGraphBasedOptimizer.optimize(CommonSubGraphBasedOptimizer.scala:77)
> at
> org.apache.flink.table.planner.delegation.PlannerBase.optimize(PlannerBase.scala:276)
> at
> org.apache.flink.table.planner.utils.TableTestUtilBase.assertPlanEquals(TableTestBase.scala:889)
> at
> org.apache.flink.table.planner.utils.TableTestUtilBase.doVerifyPlan(TableTestBase.scala:780)
> at
> org.apache.flink.table.planner.utils.TableTestUtilBase.verifyRelPlan(TableTestBase.scala:400)
> {code}
> It seems that this bug is related to commit
> 957c49d56c80416ae712ae79cdd2784bb2387c80 by [~dwysakowicz]. This commit is a
> hotfix related to no issue. It adds a {{notNull}} to the return value of
> RexNodeExtractor#visitLiteral.
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