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https://issues.apache.org/jira/browse/CALCITE-6501?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
ASF GitHub Bot updated CALCITE-6501:
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Labels: pull-request-available (was: )
> Assertion Error in JoinUnifyRule Due to Type Mismatch
> -----------------------------------------------------
>
> Key: CALCITE-6501
> URL: https://issues.apache.org/jira/browse/CALCITE-6501
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: suibianwanwan
> Priority: Minor
> Labels: pull-request-available
> Attachments: image-2024-07-25-22-05-23-957.png
>
>
> In some cases, there is an assertion failure during the unifyRule rewriting
> process due to a type mismatch. If we can't rewrite it, we'd better return
> null instead of assert.
> example：
> {code:java}
> @Test
> public void testJoinOnCalcToJoin3011()
> {
> String mv = ""
> + "select \"emps\".\"empid\", \"emps\".\"deptno\", \"depts\".\"deptno\"
> from\n"
> + "\"emps\" right join \"depts\"\n"
> + "on \"emps\".\"deptno\" = \"depts\".\"deptno\"";
> String query = ""
> + "select \"A\".\"empid\", \"A\".\"a\", \"A\".\"deptno\",
> \"depts\".\"deptno\" from\n"
> + " (select \"empid\", \"deptno\", \"deptno\" \"a\" from \"emps\") A"
> + " right join \"depts\"\n"
> + "on \"A\".\"deptno\" = \"depts\".\"deptno\"";
> sql(mv, query).noMat();
> } {code}
> Trace:
> {code:java}
> type mismatch:type1:JavaType(int) NOT NULLtype2:JavaType(class
> java.lang.Integer)java.lang.AssertionError: type mismatch:type1:JavaType(int)
> NOT NULLtype2:JavaType(class java.lang.Integer) at
> org.apache.calcite.util.Litmus.lambda$static$0(Litmus.java:31) at
> org.apache.calcite.plan.RelOptUtil.eq(RelOptUtil.java:2204) at
> org.apache.calcite.rex.RexProgramBuilder$RegisterInputShuttle.visitInputRef(RexProgramBuilder.java:949)
> at
> org.apache.calcite.rex.RexProgramBuilder$RegisterInputShuttle.visitInputRef(RexProgramBuilder.java:927)
> at org.apache.calcite.rex.RexInputRef.accept(RexInputRef.java:125) at
> org.apache.calcite.rex.RexProgramBuilder.registerInput(RexProgramBuilder.java:303)
> at
> org.apache.calcite.rex.RexProgramBuilder.addProject(RexProgramBuilder.java:213)
> at org.apache.calcite.rex.RexProgram.create(RexProgram.java:235) at
> org.apache.calcite.rex.RexProgram.create(RexProgram.java:204) at
> org.apache.calcite.plan.SubstitutionVisitor$JoinOnLeftCalcToJoinUnifyRule.apply(SubstitutionVisitor.java:1265)
> at
> org.apache.calcite.plan.SubstitutionVisitor.go(SubstitutionVisitor.java:589)
> at
> org.apache.calcite.plan.SubstitutionVisitor.go(SubstitutionVisitor.java:523)
> at
> org.apache.calcite.test.MaterializedViewSubstitutionVisitorTest$1.optimize(MaterializedViewSubstitutionVisitorTest.java:88)
> at
> org.apache.calcite.test.MaterializedViewTester.checkNoMaterialize(MaterializedViewTester.java:94)
> at
> org.apache.calcite.test.MaterializedViewFixture.noMat(MaterializedViewFixture.java:60)
> at {code}
>
>
>
>
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