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https://issues.apache.org/jira/browse/CALCITE-3456?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16972934#comment-16972934
]
Danny Chen commented on CALCITE-3456:
-------------------------------------
It is the SqlToRelConverter that throws the error. The BlackBoard reuse a wrong
IN subquery for the aggregation and the input refs in the IN RexCall have the
wrong shift. So finally there is a type equivalence comparison failure and the
error throws. Here is the stack trace:
{code:java}
java.lang.AssertionError: type mismatch:
ref:
VARCHAR(10) NOT NULL
input:
BIGINT NOT NULL
at org.apache.calcite.util.Litmus$1.fail(Litmus.java:31)
at org.apache.calcite.plan.RelOptUtil.eq(RelOptUtil.java:2033)
at org.apache.calcite.rex.RexChecker.visitInputRef(RexChecker.java:125)
at org.apache.calcite.rex.RexChecker.visitInputRef(RexChecker.java:57)
at org.apache.calcite.rex.RexInputRef.accept(RexInputRef.java:112)
at org.apache.calcite.rex.RexChecker.visitCall(RexChecker.java:140)
at org.apache.calcite.rex.RexChecker.visitCall(RexChecker.java:57)
at org.apache.calcite.rex.RexCall.accept(RexCall.java:191)
at org.apache.calcite.rex.RexChecker.visitCall(RexChecker.java:140)
at org.apache.calcite.rex.RexChecker.visitCall(RexChecker.java:57)
at org.apache.calcite.rex.RexCall.accept(RexCall.java:191)
at org.apache.calcite.rex.RexChecker.visitCall(RexChecker.java:140)
at org.apache.calcite.rex.RexChecker.visitCall(RexChecker.java:57)
at org.apache.calcite.rex.RexCall.accept(RexCall.java:191)
at org.apache.calcite.rel.core.Project.isValid(Project.java:218)
at org.apache.calcite.rel.core.Project.<init>(Project.java:91)
at
org.apache.calcite.rel.logical.LogicalProject.<init>(LogicalProject.java:66)
at
org.apache.calcite.rel.logical.LogicalProject.<init>(LogicalProject.java:83)
at
org.apache.calcite.rel.logical.LogicalProject.create(LogicalProject.java:132)
at
org.apache.calcite.rel.logical.LogicalProject.create(LogicalProject.java:120)
at
org.apache.calcite.rel.core.RelFactories$ProjectFactoryImpl.createProject(RelFactories.java:158)
at org.apache.calcite.tools.RelBuilder.project(RelBuilder.java:1415)
at org.apache.calcite.tools.RelBuilder.project(RelBuilder.java:1253)
at
org.apache.calcite.sql2rel.SqlToRelConverter.createAggImpl(SqlToRelConverter.java:3022)
at
org.apache.calcite.sql2rel.SqlToRelConverter.convertAgg(SqlToRelConverter.java:2844)
at
org.apache.calcite.sql2rel.SqlToRelConverter.convertSelectImpl(SqlToRelConverter.java:684)
at
org.apache.calcite.sql2rel.SqlToRelConverter.convertSelect(SqlToRelConverter.java:646)
at
org.apache.calcite.sql2rel.SqlToRelConverter.convertQueryRecursive(SqlToRelConverter.java:3230)
at
org.apache.calcite.sql2rel.SqlToRelConverter.convertQuery(SqlToRelConverter.java:572)
at
org.apache.calcite.test.SqlToRelTestBase$TesterImpl.convertSqlToRel(SqlToRelTestBase.java:626)
at
org.apache.calcite.test.SqlToRelTestBase$TesterImpl.assertConvertsTo(SqlToRelTestBase.java:745)
at
org.apache.calcite.test.SqlToRelConverterTest$Sql.convertsTo(SqlToRelConverterTest.java:3640)
at
org.apache.calcite.test.SqlToRelConverterTest$Sql.ok(SqlToRelConverterTest.java:3632)
at
org.apache.calcite.test.SqlToRelConverterTest.testAggregateWithSameDigestInSubQueries(SqlToRelConverterTest.java:3574)
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:50)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
{code}
> AssertionError throws for aggregation with same digest IN subqueries in same
> scope
> ----------------------------------------------------------------------------------
>
> Key: CALCITE-3456
> URL: https://issues.apache.org/jira/browse/CALCITE-3456
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.21.0
> Reporter: Danny Chen
> Assignee: Danny Chen
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.22.0
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> Check this sql in SqlToRelConverterTest:
> {code:java}
> @Test public void testAggregateWithCaseWhen() {
> final String sql = "select\n"
> + " CASE WHEN job IN ('810000', '820000') THEN job\n"
> + " ELSE 'error'\n"
> + " END AS id,\n"
> + " count(empno)\n"
> + "FROM emp\n"
> + "where job <> '' or job in ('810000', '820000')\n"
> + "GROUP by deptno, job";
> sql(sql).ok();
> }
> {code}
> I tested PostgreSQL 9.6 and MySQL 5.6, this is a valid SQL and they both
> outputs the right result.
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