Zhen Chen created CALCITE-6880:
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Summary: Implement IntersectToSemiJoinRule
Key: CALCITE-6880
URL: https://issues.apache.org/jira/browse/CALCITE-6880
Project: Calcite
Issue Type: Improvement
Reporter: Zhen Chen
Assignee: Zhen Chen
Do we need IntersectToSemiJoinRule? like this:
from:
{code:java}
LogicalIntersect(all=[false])
LogicalProject(EMPNO=[$0], ENAME=[$1], JOB=[$2], MGR=[$3], HIREDATE=[$4],
SAL=[$5], COMM=[$6], DEPTNO=[$7], SLACKER=[$8])
LogicalFilter(condition=[=($7, 10)])
LogicalTableScan(table=[[CATALOG, SALES, EMP]])
LogicalProject(EMPNO=[$0], ENAME=[$1], JOB=[$2], MGR=[$3], HIREDATE=[$4],
SAL=[$5], COMM=[$6], DEPTNO=[$7], SLACKER=[$8])
LogicalFilter(condition=[=($7, 20)])
LogicalTableScan(table=[[CATALOG, SALES, EMP]]) {code}
to:
{code:java}
LogicalJoin(condition=[AND(=($0, $9), =($1, $10), =($2, $11), =($3, $12), =($4,
$13), =($5, $14), =($6, $15), =($7, $16), =($8, $17))], joinType=[semi])
LogicalProject(EMPNO=[$0], ENAME=[$1], JOB=[$2], MGR=[$3], HIREDATE=[$4],
SAL=[$5], COMM=[$6], DEPTNO=[$7], SLACKER=[$8])
LogicalFilter(condition=[=($7, 10)])
LogicalTableScan(table=[[CATALOG, SALES, EMP]])
LogicalProject(EMPNO=[$0], ENAME=[$1], JOB=[$2], MGR=[$3], HIREDATE=[$4],
SAL=[$5], COMM=[$6], DEPTNO=[$7], SLACKER=[$8])
LogicalFilter(condition=[=($7, 20)])
LogicalTableScan(table=[[CATALOG, SALES, EMP]]) {code}
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