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https://issues.apache.org/jira/browse/CALCITE-2947?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Haisheng Yuan resolved CALCITE-2947.
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Resolution: Fixed
Fix Version/s: 1.20.0
Resolved by patch in https://issues.apache.org/jira/browse/CALCITE-2004
> Type mismatch assertion error when converting NOT IN subquery
> -------------------------------------------------------------
>
> Key: CALCITE-2947
> URL: https://issues.apache.org/jira/browse/CALCITE-2947
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: Haisheng Yuan
> Priority: Major
> Labels: sub-query
> Fix For: 1.20.0
>
>
> Repro:
> Add the following test to SqlToRelConverterTest.java.
> {code:java}
> @Test public void testSubQueryNotIN() {
> final String sql = "select deptno\n"
> + "from EMP e\n"
> + "where deptno not in (select deptno\n"
> + "from EMP where empno=e.empno)";
> sql(sql).ok();
> }
> {code}
> Error:
> {code:java}
> java.lang.AssertionError: type mismatch:
> ref:
> INTEGER NOT NULL
> input:
> INTEGER
> at org.apache.calcite.util.Litmus$1.fail(Litmus.java:31)
> at org.apache.calcite.plan.RelOptUtil.eq(RelOptUtil.java:1832)
> at org.apache.calcite.rex.RexChecker.visitInputRef(RexChecker.java:125)
> at org.apache.calcite.rex.RexChecker.visitInputRef(RexChecker.java:57)
> at org.apache.calcite.rex.RexInputRef.accept(RexInputRef.java:112)
> at org.apache.calcite.rex.RexChecker.visitCall(RexChecker.java:140)
> at org.apache.calcite.rex.RexChecker.visitCall(RexChecker.java:57)
> at org.apache.calcite.rex.RexCall.accept(RexCall.java:191)
> at org.apache.calcite.rel.core.Filter.isValid(Filter.java:120)
> at
> org.apache.calcite.rel.logical.LogicalFilter.<init>(LogicalFilter.java:70)
> at
> org.apache.calcite.rel.logical.LogicalFilter.create(LogicalFilter.java:114)
> at
> org.apache.calcite.rel.logical.LogicalFilter.create(LogicalFilter.java:101)
> at
> org.apache.calcite.rel.core.RelFactories$FilterFactoryImpl.createFilter(RelFactories.java:300)
> at
> org.apache.calcite.sql2rel.SqlToRelConverter.createJoin(SqlToRelConverter.java:2433)
> {code}
> If we change not in subquery to in subquery, it can run without error.
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