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Posted to issues@ignite.apache.org by "Roman Kondakov (Jira)" <ji...@apache.org> on 2020/04/19 11:47:00 UTC
[jira] [Updated] (IGNITE-12915) Calcite integration: Add push filter to join rule to the planner

     [ https://issues.apache.org/jira/browse/IGNITE-12915?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Roman Kondakov updated IGNITE-12915:
------------------------------------
    Description: 
We need to add  next rules to planner
 * FilterJoinRule
 * JoinPushExpressionsRule

In order to be able to make this transformation for the query:
{noformat}
"select d.deptno, e.deptno from sales.dept d, sales.emp e\n"
    + " where d.deptno + 10 = e.deptno * 2"

BEFORE=
LogicalProject(DEPTNO=[$0], DEPTNO0=[$5])
  LogicalFilter(condition=[=(+($0, 10), *($5, 2))])
    LogicalJoin(condition=[true], joinType=[inner])
      IgniteTableScan(table=[[PUBLIC, DEPT]])
      IgniteTableScan(table=[[PUBLIC, EMP]])

AFTER=
IgniteProject(DEPTNO=[$0], DEPTNO0=[$5])
  IgniteJoin(condition=[=(+($0, 10), *($5, 2))], joinType=[inner])
    IgniteTableScan(table=[[PUBLIC, DEPT]])
    IgniteTableScan(table=[[PUBLIC, EMP]])
{noformat}
 

 

  was:
We need to add  next rules to planner
 * AggregateProjectMergeRule

In order to be able to make this transformation for the query:
{noformat}
"select x, sum(z), y from (\n"
    + "  select deptno as x, empno as y, sal as z, sal * 2 as zz\n"
    + "  from emp)\n"
    + "group by x, y"

BEFORE=
LogicalProject(X=[$0], EXPR$1=[$2], Y=[$1])
  LogicalAggregate(group=[{0, 1}], EXPR$1=[SUM($2)])
    LogicalProject(X=[$3], Y=[$0], Z=[$2])
      IgniteTableScan(table=[[PUBLIC, EMP]])

AFTER=
IgniteProject(X=[$0], EXPR$1=[$2], Y=[$1])
  IgniteProject(DEPTNO=[$1], EMPNO=[$0], EXPR$1=[$2])
    IgniteAggregate(group=[{0, 3}], EXPR$1=[SUM($2)])
      IgniteTableScan(table=[[PUBLIC, EMP]])
{noformat}
 

 


> Calcite integration: Add push filter to join rule to the planner
> ----------------------------------------------------------------
>
>                 Key: IGNITE-12915
>                 URL: https://issues.apache.org/jira/browse/IGNITE-12915
>             Project: Ignite
>          Issue Type: Improvement
>          Components: sql
>            Reporter: Roman Kondakov
>            Priority: Major
>
> We need to add  next rules to planner
>  * FilterJoinRule
>  * JoinPushExpressionsRule
> In order to be able to make this transformation for the query:
> {noformat}
> "select d.deptno, e.deptno from sales.dept d, sales.emp e\n"
>     + " where d.deptno + 10 = e.deptno * 2"
> BEFORE=
> LogicalProject(DEPTNO=[$0], DEPTNO0=[$5])
>   LogicalFilter(condition=[=(+($0, 10), *($5, 2))])
>     LogicalJoin(condition=[true], joinType=[inner])
>       IgniteTableScan(table=[[PUBLIC, DEPT]])
>       IgniteTableScan(table=[[PUBLIC, EMP]])
> AFTER=
> IgniteProject(DEPTNO=[$0], DEPTNO0=[$5])
>   IgniteJoin(condition=[=(+($0, 10), *($5, 2))], joinType=[inner])
>     IgniteTableScan(table=[[PUBLIC, DEPT]])
>     IgniteTableScan(table=[[PUBLIC, EMP]])
> {noformat}
>  
>  



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