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Posted to issues@calcite.apache.org by "shampoo liu (Jira)" <ji...@apache.org> on 2023/03/08 12:20:00 UTC
[jira] [Updated] (CALCITE-5566) agg can't be pushed down correctly

     [ https://issues.apache.org/jira/browse/CALCITE-5566?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

shampoo liu updated CALCITE-5566:
---------------------------------
    Description: 
{code:sql}
select count(*) from (select max("position_title") "position_title" from "foodmart"."employee" where "gender" like '%a%' group by "birth_date", "gender") where "position_title" like '%z%'
{code}
The plan generated from sql above is as this :
{code:java}
PLAN=EnumerableAggregate(group=[{}], EXPR$0=[COUNT()])
  JdbcToEnumerableConverter
    JdbcFilter(condition=[LIKE($2, '%z%')])
      JdbcAggregate(group=[{8, 15}], position_title=[MAX($5)])
        JdbcFilter(condition=[LIKE($15, '%a%')])
          JdbcTableScan(table=[[foodmart, employee]])
{code}

Expected:
{code:java}
PLAN=JdbcToEnumerableConverter
  JdbcAggregate(group=[{}], EXPR$0=[COUNT()])
    JdbcFilter(condition=[LIKE($2, '%z%')])
      JdbcAggregate(group=[{8, 15}], position_title=[MAX($5)])
        JdbcFilter(condition=[LIKE($15, '%a%')])
          JdbcTableScan(table=[[foodmart, employee]])
{code}

test case: https://github.com/shpodg/calcite/commit/7c7aa35ca9864243e39b8d0559f820c342860754


  was:
{code:sql}
select count(*) from (select max("position_title") "position_title" from "foodmart"."employee" where "gender" like '%a%' group by "birth_date", "gender") where "position_title" like '%z%'
{code}
The plan generated from sql above is as this :
{code:java}
PLAN=EnumerableAggregate(group=[{}], EXPR$0=[COUNT()])
  JdbcToEnumerableConverter
    JdbcFilter(condition=[LIKE($2, '%z%')])
      JdbcAggregate(group=[{8, 15}], position_title=[MAX($5)])
        JdbcFilter(condition=[LIKE($15, '%a%')])
          JdbcTableScan(table=[[foodmart, employee]])
{code}

Expected:
{code:java}
PLAN=JdbcToEnumerableConverter
  JdbcAggregate(group=[{}], EXPR$0=[COUNT()])
    JdbcFilter(condition=[LIKE($2, '%z%')])
      JdbcAggregate(group=[{8, 15}], position_title=[MAX($5)])
        JdbcFilter(condition=[LIKE($15, '%a%')])
          JdbcTableScan(table=[[foodmart, employee]])
{code}





> agg can't be pushed down correctly
> ----------------------------------
>
>                 Key: CALCITE-5566
>                 URL: https://issues.apache.org/jira/browse/CALCITE-5566
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.33.0
>            Reporter: shampoo liu
>            Priority: Major
>
> {code:sql}
> select count(*) from (select max("position_title") "position_title" from "foodmart"."employee" where "gender" like '%a%' group by "birth_date", "gender") where "position_title" like '%z%'
> {code}
> The plan generated from sql above is as this :
> {code:java}
> PLAN=EnumerableAggregate(group=[{}], EXPR$0=[COUNT()])
>   JdbcToEnumerableConverter
>     JdbcFilter(condition=[LIKE($2, '%z%')])
>       JdbcAggregate(group=[{8, 15}], position_title=[MAX($5)])
>         JdbcFilter(condition=[LIKE($15, '%a%')])
>           JdbcTableScan(table=[[foodmart, employee]])
> {code}
> Expected:
> {code:java}
> PLAN=JdbcToEnumerableConverter
>   JdbcAggregate(group=[{}], EXPR$0=[COUNT()])
>     JdbcFilter(condition=[LIKE($2, '%z%')])
>       JdbcAggregate(group=[{8, 15}], position_title=[MAX($5)])
>         JdbcFilter(condition=[LIKE($15, '%a%')])
>           JdbcTableScan(table=[[foodmart, employee]])
> {code}
> test case: https://github.com/shpodg/calcite/commit/7c7aa35ca9864243e39b8d0559f820c342860754



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