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https://issues.apache.org/jira/browse/FLINK-31163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17835878#comment-17835878
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Jeyhun Karimov commented on FLINK-31163:
----------------------------------------
When I tried to reproduce the issue (as of
3590c2d86f4186771ffcd64712f756d31306eb88), the given query in the issue
executes and exits without any exceptions.
> Unexpected correlate variable $cor0 in the plan error in where clause
> ---------------------------------------------------------------------
>
> Key: FLINK-31163
> URL: https://issues.apache.org/jira/browse/FLINK-31163
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / API
> Affects Versions: 1.16.0
> Reporter: P Rohan Kumar
> Priority: Major
>
> {code:java}
> val env: StreamExecutionEnvironment =
> StreamExecutionEnvironment.getExecutionEnvironment
> val tableEnv = StreamTableEnvironment.create(env)
> val accountsTd =
> TableDescriptor.forConnector("datagen").option("rows-per-second", "10")
> .option("number-of-rows", "10")
> .schema(Schema
> .newBuilder()
> .column("account_num", DataTypes.VARCHAR(2147483647))
> .column("acc_name", DataTypes.VARCHAR(2147483647))
> .column("acc_phone_num", DataTypes.VARCHAR(2147483647))
> .build())
> .build()
> val accountsTable = tableEnv.from(accountsTd)
> tableEnv.createTemporaryView("accounts", accountsTable)
> val transactionsTd =
> TableDescriptor.forConnector("datagen").option("rows-per-second", "10")
> .option("number-of-rows", "10")
> .schema(Schema
> .newBuilder()
> .column("account_num", DataTypes.VARCHAR(2147483647))
> .column("transaction_place", DataTypes.VARCHAR(2147483647))
> .column("transaction_time", DataTypes.BIGINT())
> .column("amount", DataTypes.INT())
> .build())
> .build()
> val transactionsTable = tableEnv.from(transactionsTd)
> tableEnv.createTemporaryView("transaction_data", transactionsTable)
> val newTable = tableEnv.sqlQuery("select acc.account_num, (select count(*)
> from transaction_data where transaction_place = trans.transaction_place and
> account_num = acc.account_num) from accounts acc,transaction_data trans")
> tableEnv.toChangelogStream(newTable).print()
> env.execute() {code}
> I get the following error if I run the above code.
>
> {code:java}
> Exception in thread "main" org.apache.flink.table.api.TableException:
> unexpected correlate variable $cor0 in the plan
> at
> org.apache.flink.table.planner.plan.optimize.program.FlinkDecorrelateProgram.checkCorrelVariableExists(FlinkDecorrelateProgram.scala:59)
> at
> org.apache.flink.table.planner.plan.optimize.program.FlinkDecorrelateProgram.optimize(FlinkDecorrelateProgram.scala:42)
> at
> org.apache.flink.table.planner.plan.optimize.program.FlinkGroupProgram.$anonfun$optimize$2(FlinkGroupProgram.scala:59)
> at
> scala.collection.TraversableOnce$folder$1$.apply(TraversableOnce.scala:187)
> at
> scala.collection.TraversableOnce$folder$1$.apply(TraversableOnce.scala:185)
> at scala.collection.Iterator.foreach(Iterator.scala:943)
> at scala.collection.Iterator.foreach$(Iterator.scala:943)
> at scala.collection.AbstractIterator.foreach(Iterator.scala:1431)
> at scala.collection.IterableLike.foreach(IterableLike.scala:74)
> at scala.collection.IterableLike.foreach$(IterableLike.scala:73)
> at scala.collection.AbstractIterable.foreach(Iterable.scala:56)
> at scala.collection.TraversableOnce.foldLeft(TraversableOnce.scala:189)
> at scala.collection.TraversableOnce.foldLeft$(TraversableOnce.scala:184)
> at scala.collection.AbstractTraversable.foldLeft(Traversable.scala:108)
> at
> org.apache.flink.table.planner.plan.optimize.program.FlinkGroupProgram.$anonfun$optimize$1(FlinkGroupProgram.scala:56)
> at
> org.apache.flink.table.planner.plan.optimize.program.FlinkGroupProgram.$anonfun$optimize$1$adapted(FlinkGroupProgram.scala:51)
> at
> scala.collection.TraversableOnce$folder$1$.apply(TraversableOnce.scala:187)
> at
> scala.collection.TraversableOnce$folder$1$.apply(TraversableOnce.scala:185)
> at scala.collection.immutable.Range.foreach(Range.scala:158)
> at scala.collection.TraversableOnce.foldLeft(TraversableOnce.scala:189)
> at scala.collection.TraversableOnce.foldLeft$(TraversableOnce.scala:184)
> at scala.collection.AbstractTraversable.foldLeft(Traversable.scala:108)
> at
> org.apache.flink.table.planner.plan.optimize.program.FlinkGroupProgram.optimize(FlinkGroupProgram.scala:51)
> at
> org.apache.flink.table.planner.plan.optimize.program.FlinkChainedProgram.$anonfun$optimize$1(FlinkChainedProgram.scala:59)
> at
> scala.collection.TraversableOnce$folder$1$.apply(TraversableOnce.scala:187)
> at
> scala.collection.TraversableOnce$folder$1$.apply(TraversableOnce.scala:185)
> at scala.collection.Iterator.foreach(Iterator.scala:943)
> at scala.collection.Iterator.foreach$(Iterator.scala:943)
> at scala.collection.AbstractIterator.foreach(Iterator.scala:1431)
> at scala.collection.IterableLike.foreach(IterableLike.scala:74)
> at scala.collection.IterableLike.foreach$(IterableLike.scala:73)
> at scala.collection.AbstractIterable.foreach(Iterable.scala:56)
> at scala.collection.TraversableOnce.foldLeft(TraversableOnce.scala:189)
> at scala.collection.TraversableOnce.foldLeft$(TraversableOnce.scala:184)
> at scala.collection.AbstractTraversable.foldLeft(Traversable.scala:108)
> at
> org.apache.flink.table.planner.plan.optimize.program.FlinkChainedProgram.optimize(FlinkChainedProgram.scala:55)
> at
> org.apache.flink.table.planner.plan.optimize.StreamCommonSubGraphBasedOptimizer.optimizeTree(StreamCommonSubGraphBasedOptimizer.scala:176)
> at
> org.apache.flink.table.planner.plan.optimize.StreamCommonSubGraphBasedOptimizer.doOptimize(StreamCommonSubGraphBasedOptimizer.scala:83)
> at
> org.apache.flink.table.planner.plan.optimize.CommonSubGraphBasedOptimizer.optimize(CommonSubGraphBasedOptimizer.scala:87)
> at
> org.apache.flink.table.planner.delegation.PlannerBase.optimize(PlannerBase.scala:315)
> at
> org.apache.flink.table.planner.delegation.PlannerBase.translate(PlannerBase.scala:195)
> at
> org.apache.flink.table.api.bridge.internal.AbstractStreamTableEnvironmentImpl.toStreamInternal(AbstractStreamTableEnvironmentImpl.java:224)
> at
> org.apache.flink.table.api.bridge.internal.AbstractStreamTableEnvironmentImpl.toStreamInternal(AbstractStreamTableEnvironmentImpl.java:219)
> at
> org.apache.flink.table.api.bridge.scala.internal.StreamTableEnvironmentImpl.toChangelogStream(StreamTableEnvironmentImpl.scala:160)
> at org.example.WhereClauseBug$.main(WhereClauseBug.scala:50)
> at org.example.WhereClauseBug.main(WhereClauseBug.scala)
> {code}
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