[jira] [Commented] (CALCITE-4364) Simplify "a IN (1, 2) AND a = 1" to "a = 1"

["Xin Chen (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CALCITE-4364?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17727374#comment-17727374 ] 

Xin Chen commented on CALCITE-4364:
-----------------------------------

Thank you for above descriptions! But I currently hava a question about "simplify”. Simplification seem to not take into account that the specified field is of array type. In other words，it can simplify "a = 1 AND a = 2" to "false"，but can not simplify “a = [1,2] AND a = [2,3]” to "false". Obviously, was there  no consideration given to the field type being an array？I found this issue while debugging the Flink SQL task. 
Link to https://issues.apache.org/jira/browse/FLINK-32188.
Thank you for answer!


> Simplify "a IN (1, 2) AND a = 1" to "a = 1"
> -------------------------------------------
>
>                 Key: CALCITE-4364
>                 URL: https://issues.apache.org/jira/browse/CALCITE-4364
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.26.0
>            Reporter: Danny Chen
>            Assignee: Danny Chen
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.27.0
>
>          Time Spent: 7h 20m
>  Remaining Estimate: 0h
>
> Calcite should simplify "\{{a IN (1, 2) AND a = 1}}" to "\{{a = 1}}". Check this test in {{RexProgramTest}}:
> {code:java}
> @Test void testSimplifyInAnd() {
>     // deptno in (20, 10) and deptno = 10
>     //   ==>
>     // deptno = 10
>     final RexNode e =
>         and(
>             in(vInt(), literal(20), literal(10)),
>             eq(vInt(), literal(10)));
>     checkSimplify(e, "=(?0.int0, 10)");
>   }
> {code}



--
This message was sent by Atlassian Jira
(v8.20.10#820010)