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https://issues.apache.org/jira/browse/CALCITE-3223?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Haisheng Yuan resolved CALCITE-3223.
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Fix Version/s: 1.21.0
Resolution: Fixed
Fixed in
https://github.com/apache/calcite/commit/729446005617059c0ce9fef4068087e4ca9ca139,
thanks for the PR, [~jinxing6...@126.com]!
> Non-RexInputRef may fails the matching of FilterToProjectUnifyRule during
> 'invert' by mistake.
> ----------------------------------------------------------------------------------------------
>
> Key: CALCITE-3223
> URL: https://issues.apache.org/jira/browse/CALCITE-3223
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: jin xing
> Assignee: jin xing
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.21.0
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> In current code of
> {{FilterToProjectUnifyRule::invert}}(https://github.com/apache/calcite/blob/master/core/src/main/java/org/apache/calcite/plan/SubstitutionVisitor.java#L1124),
> the implementation
> 1. Fails the matching when there is Non-RexInputRef in the projects
> 2. Didn't check if all items of {{exprList}} has already been set correctly.
> As a result below tests fails.
> {code:java}
> @Test public void testFilterToProject0() {
> String union =
> "select * from \"emps\" where \"empid\" > 300\n"
> + "union all select * from \"emps\" where \"empid\" < 200";
> String mv = "select *, \"empid\" * 2 from (" + union + ")";
> String query = "select * from (" + union + ") where (\"empid\" * 2) > 3";
> checkMaterialize(mv, query);
> }
> @Test public void testFilterToProject1() {
> String agg =
> "select \"deptno\", count(*) as \"c\", sum(\"salary\") as \"s\"\n"
> + "from \"emps\" group by \"deptno\"";
> String mv = "select \"c\", \"s\", \"s\" from (" + agg + ")";
> String query = "select * from (" + agg + ") where (\"s\" * 0.8) > 10000";
> checkNoMaterialize(mv, query, HR_FKUK_MODEL);
> }
> {code}
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