[jira] [Comment Edited] (CALCITE-5691) Planning error with subquery inside filter clause

["Runkang He (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CALCITE-5691?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17720718#comment-17720718 ] 

Runkang He edited comment on CALCITE-5691 at 5/9/23 12:33 AM:
--------------------------------------------------------------

I have reproduced this issue in 1.35 with Soumyava's sqlline example.

The root cause is that the RexSubQuery is not handled properly when check whether an expression is effectively NOT NULL. I will submit a PR to fix it.


was (Author: JIRAUSER280488):
I have reproduced this issue in 1.35 with Soumyava's sqlline example.

> Planning error with subquery inside filter clause
> -------------------------------------------------
>
>                 Key: CALCITE-5691
>                 URL: https://issues.apache.org/jira/browse/CALCITE-5691
>             Project: Calcite
>          Issue Type: Bug
>    Affects Versions: 1.34.0
>         Environment: SqlLine
>            Reporter: Soumyava Das
>            Priority: Major
>
> I tried a query which is similar to the one I use in the sqlline component and I see the query still to fail. The query is 
> {code:java}
> select
> count(*) filter (where trim(both from name) in (select city from emps))
> from emps; {code}
> {code:java}
> 0: jdbc:calcite:model=src/test/resources/mode> select * from emps;
> +-------+-------+--------+--------+---------------+-------+------+---------+---------+------------+
> | EMPNO | NAME  | DEPTNO | GENDER |     CITY      | EMPID | AGE  | SLACKER | MANAGER |  JOINEDAT  |
> +-------+-------+--------+--------+---------------+-------+------+---------+---------+------------+
> | 100   | Fred  | 10     |        |               | 30    | 25   | true    | false   | 1996-08-03 |
> | 110   | Eric  | 20     | M      | San Francisco | 3     | 80   |         | false   | 2001-01-01 |
> | 110   | John  | 40     | M      | Vancouver     | 2     | null | false   | true    | 2002-05-03 |
> | 120   | Wilma | 20     | F      |               | 1     | 5    |         | true    | 2005-09-07 |
> | 130   | Alice | 40     | F      | Vancouver     | 2     | null | false   | true    | 2007-01-01 |
> +-------+-------+--------+--------+---------------+-------+------+---------+---------+------------+
> 5 rows selected (0.025 seconds)
> 0: jdbc:calcite:model=src/test/resources/mode> select
> . . . . . . . . . . . . . . . . . . semicolon> count(*) filter (where trim(both from name) in (select city from emps))
> . . . . . . . . . . . . . . . . . . semicolon> from emps;
> Error: Error while executing SQL "select
> count(*) filter (where trim(both from name) in (select city from emps))
> from emps": index (1) must be less than size (1) (state=,code=0){code}
> The stack trace that I typically see for this is 
> {code:java}
> java.lang.IndexOutOfBoundsException: index (1) must be less than size (1)
> 	at com.google.common.base.Preconditions.checkElementIndex(Preconditions.java:313)	at com.google.common.base.Preconditions.checkElementIndex(Preconditions.java:295)	at com.google.common.collect.SingletonImmutableList.get(SingletonImmutableList.java:45)	at org.apache.calcite.plan.RelOptPredicateList.isEffectivelyNotNull(RelOptPredicateList.java:240)	at org.apache.calcite.rex.RexSimplify.simplifyIs2(RexSimplify.java:911)	at org.apache.calcite.rex.RexSimplify.simplifyIs1(RexSimplify.java:869)	at org.apache.calcite.rex.RexSimplify.simplifyIs(RexSimplify.java:840)	at org.apache.calcite.rex.RexSimplify.simplify(RexSimplify.java:301)	at org.apache.calcite.rex.RexSimplify.simplifyUnknownAs(RexSimplify.java:248)	at org.apache.calcite.rex.RexSimplify.simplifyPreservingType(RexSimplify.java:187)	at org.apache.calcite.rex.RexSimplify.simplifyPreservingType(RexSimplify.java:182)	at org.apache.calcite.tools.RelBuilder.project_(RelBuilder.java:1993)	at org.apache.calcite.tools.RelBuilder.project(RelBuilder.java:1840)	at org.apache.calcite.tools.RelBuilder.projectNamed(RelBuilder.java:2161)	at org.apache.calcite.tools.RelBuilder.projectNamed(RelBuilder.java:2098)	at org.apache.calcite.sql2rel.SqlToRelConverter.createAggImpl(SqlToRelConverter.java:3464)	at org.apache.calcite.sql2rel.SqlToRelConverter.convertAgg(SqlToRelConverter.java:3367)	at org.apache.calcite.sql2rel.SqlToRelConverter.convertSelectImpl(SqlToRelConverter.java:754)	at org.apache.calcite.sql2rel.SqlToRelConverter.convertSelect(SqlToRelConverter.java:680)	at org.apache.calcite.sql2rel.SqlToRelConverter.convertQueryRecursive(SqlToRelConverter.java:3765)	at org.apache.calcite.sql2rel.SqlToRelConverter.convertQuery(SqlToRelConverter.java:600) {code}



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