[
https://issues.apache.org/jira/browse/IGNITE-12913?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Roman Kondakov updated IGNITE-12913:
------------------------------------
Description:
We need to add next rules to planner
* FilterJoinRule,
* JoinAddRedundantSemiJoinRule,
* SemiJoinRemoveRule
In order to be able to make this transformation for the query:
{noformat}
"select e.ename from emp e, dept d\n"
+ "where e.deptno = d.deptno"
BEFORE=
LogicalProject(ENAME=[$1])
LogicalFilter(condition=[=($3, $5)])
LogicalJoin(condition=[true], joinType=[inner])
IgniteTableScan(table=[[PUBLIC, EMP]])
IgniteTableScan(table=[[PUBLIC, DEPT]])
AFTER=
IgniteProject(ENAME=[$1])
IgniteJoin(condition=[=($3, $5)], joinType=[inner])
IgniteTableScan(table=[[PUBLIC, EMP]])
IgniteTableScan(table=[[PUBLIC, DEPT]])
{noformat}
was:
We need to add next rules to planner
* FilterMergeRule
* FilterProjectTransposeRule
In order to be able to make this transformation for the query:
{noformat}
"select name from (\n"
+ " select *\n"
+ " from dept\n"
+ " where deptno = 10)\n"
+ "where deptno = 10\n"
BEFORE=
LogicalProject(NAME=[$1])
LogicalFilter(condition=[=(CAST($0):INTEGER, 10)])
LogicalProject(DEPTNO=[$0], NAME=[$1])
LogicalFilter(condition=[=(CAST($0):INTEGER, 10)])
IgniteTableScan(table=[[PUBLIC, DEPT]])
AFTER=
IgniteProject(NAME=[$1])
IgniteProject(DEPTNO=[$0], NAME=[$1])
IgniteFilter(condition=[=(CAST($0):INTEGER, 10)])
IgniteTableScan(table=[[PUBLIC, DEPT]])
{noformat}
> Calcite integration: Add semi join remove rule to the planner
> -------------------------------------------------------------
>
> Key: IGNITE-12913
> URL: https://issues.apache.org/jira/browse/IGNITE-12913
> Project: Ignite
> Issue Type: Improvement
> Components: sql
> Reporter: Roman Kondakov
> Priority: Major
>
> We need to add next rules to planner
> * FilterJoinRule,
> * JoinAddRedundantSemiJoinRule,
> * SemiJoinRemoveRule
> In order to be able to make this transformation for the query:
> {noformat}
> "select e.ename from emp e, dept d\n"
> + "where e.deptno = d.deptno"
> BEFORE=
> LogicalProject(ENAME=[$1])
> LogicalFilter(condition=[=($3, $5)])
> LogicalJoin(condition=[true], joinType=[inner])
> IgniteTableScan(table=[[PUBLIC, EMP]])
> IgniteTableScan(table=[[PUBLIC, DEPT]])
> AFTER=
> IgniteProject(ENAME=[$1])
> IgniteJoin(condition=[=($3, $5)], joinType=[inner])
> IgniteTableScan(table=[[PUBLIC, EMP]])
> IgniteTableScan(table=[[PUBLIC, DEPT]])
> {noformat}
>
>
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
