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Posted to issues@calcite.apache.org by "Julian Hyde (JIRA)" <ji...@apache.org> on 2016/11/01 21:22:58 UTC
[jira] [Commented] (CALCITE-1479) AssertionError in
ReduceExpressionsRule on multi-column IN subquery
[ https://issues.apache.org/jira/browse/CALCITE-1479?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15626715#comment-15626715 ]
Julian Hyde commented on CALCITE-1479:
--------------------------------------
[~gian], The problem was subtle: you were missing a call to {{.expand(false)}} in {{RelOptRulesTest}}, and as a result the sql-to-rel converter was removing {{RexSubQuery}} before you even saw them. I have a test case now, and I'll commit shortly.
> AssertionError in ReduceExpressionsRule on multi-column IN subquery
> -------------------------------------------------------------------
>
> Key: CALCITE-1479
> URL: https://issues.apache.org/jira/browse/CALCITE-1479
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.10.0
> Reporter: Gian Merlino
> Assignee: Julian Hyde
>
> See also https://github.com/apache/calcite/pull/317. This seems to be related to visiting subqueries without accounting for the fact that they might push multiple constancys on the stack.
> The assertion error I'm getting in my code is from the sql,
> {code}
> SELECT * FROM s.foo
> WHERE (dim1, dim2) IN (
> SELECT dim1, dim2 FROM (
> SELECT dim1, dim2
> FROM s.foo
> GROUP BY dim1, dim2
> )
> )
> {code}
> and the stack trace is,
> {noformat}
> java.lang.AssertionError: Internal error: Error while applying rule ReduceExpressionsRule(Filter), args [rel#8:LogicalFilter.NONE.[](input=rel#7:Subset#0.NONE.[],condition=IN($2, $3, {
> LogicalProject(DIM1=[$0], DIM2=[$1])
> LogicalAggregate(group=[{0, 1}])
> LogicalProject(DIM1=[$2], DIM2=[$3])
> DruidQueryRel(dataSource=[foo])
> }))]
> at org.apache.calcite.util.Util.newInternal(Util.java:792)
> at org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:236)
> at org.apache.calcite.plan.volcano.VolcanoPlanner.findBestExp(VolcanoPlanner.java:819)
> at org.apache.calcite.tools.Programs$5.run(Programs.java:300)
> at org.apache.calcite.tools.Programs$SequenceProgram.run(Programs.java:351)
> at org.apache.calcite.prepare.Prepare.optimize(Prepare.java:153)
> at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:287)
> at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:193)
> at org.apache.calcite.prepare.CalcitePrepareImpl.prepare2_(CalcitePrepareImpl.java:734)
> at org.apache.calcite.prepare.CalcitePrepareImpl.prepare_(CalcitePrepareImpl.java:597)
> at org.apache.calcite.prepare.CalcitePrepareImpl.prepareSql(CalcitePrepareImpl.java:567)
> at org.apache.calcite.jdbc.CalciteConnectionImpl.parseQuery(CalciteConnectionImpl.java:215)
> at org.apache.calcite.jdbc.CalciteMetaImpl.prepareAndExecute(CalciteMetaImpl.java:594)
> at org.apache.calcite.avatica.AvaticaConnection.prepareAndExecuteInternal(AvaticaConnection.java:613)
> at org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:139)
> at org.apache.calcite.avatica.AvaticaStatement.executeQuery(AvaticaStatement.java:208)
> at io.druid.sql.calcite.table.DruidTableTest.testQuery(DruidTableTest.java:1800)
> at io.druid.sql.calcite.table.DruidTableTest.testUsingSubqueryAsFilterOnTwoColumns(DruidTableTest.java:1715)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
> at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
> at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
> at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
> at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:117)
> at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:42)
> at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:262)
> at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:84)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
> Caused by: java.lang.AssertionError
> at org.apache.calcite.rel.rules.ReduceExpressionsRule$ReducibleExprLocator.analyze(ReduceExpressionsRule.java:924)
> at org.apache.calcite.rel.rules.ReduceExpressionsRule.findReducibleExps(ReduceExpressionsRule.java:603)
> at org.apache.calcite.rel.rules.ReduceExpressionsRule.reduceExpressionsInternal(ReduceExpressionsRule.java:492)
> at org.apache.calcite.rel.rules.ReduceExpressionsRule.reduceExpressions(ReduceExpressionsRule.java:462)
> at org.apache.calcite.rel.rules.ReduceExpressionsRule$FilterReduceExpressionsRule.onMatch(ReduceExpressionsRule.java:149)
> at org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:213)
> ... 45 more
> {noformat}
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