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https://issues.apache.org/jira/browse/CALCITE-5336?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17629136#comment-17629136
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Julian Hyde commented on CALCITE-5336:
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I didn't ask about tests that use RelFn. I asked about tests.
It's not helpful when you answer a different question than I asked.
When I edit {{AbstractRelOptPlanner.getExecutor}} to return null I get 27 test
failures in {{RelOptRulesTest}}.
Figure out why those tests succeed.
Make the tests that are based on relFn work the same way.
Sorry if you think that improving the test infrastructure is a burden. But if
you're not making things better, you're making them worse.
> Support inferring constants from predicates with IS NOT DISTINCT FROM operator
> ------------------------------------------------------------------------------
>
> Key: CALCITE-5336
> URL: https://issues.apache.org/jira/browse/CALCITE-5336
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Jasmin Trada
> Assignee: Jasmin Trada
> Priority: Trivial
> Labels: pull-request-available
> Fix For: 1.33.0
>
> Original Estimate: 168h
> Time Spent: 10m
> Remaining Estimate: 167h 50m
>
> Whenever we have {{IS NOT DISTINCT FROM}} operator in a predicate, the
> {{predicateConstants}} method in {{RexUtil}} is not able to identify the
> constants.
> E.g., If we make a predicate as given below,
> {code}
> //dec20 = IS_NOT_DISTINCT_FROM($0, CAST(2020-12-11):DATE)
> RexNode dec20 = rexB.makeCall(IS_NOT_DISTINCT_FROM,
> rexB.makeInputRef(dateColumnType, 0),
> rexB.makeLiteral(new DateString(2020, 12, 11), dateColumnType,
> false));
> {code}
> and if we call {{RexUtil.predicateConstants(RexNode.class, rexB,
> Arrays.asList(dec20))}},
> it will return an empty map, but it should have returned something like this:
> {code}
> { "$0" -> "CAST(2020-12-11):DATE"}
> {code}
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