Yu Xu created CALCITE-7011:
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Summary: Filter conditions should be distinct avoid duplicate
condition
Key: CALCITE-7011
URL: https://issues.apache.org/jira/browse/CALCITE-7011
Project: Calcite
Issue Type: New Feature
Components: core
Affects Versions: 1.39.0
Reporter: Yu Xu
Assignee: Yu Xu
Fix For: 1.40.0
sql:
{code:java}
select deptno from emp where deptno=1 or deptno in (1,2) {code}
currently would convert to a plan:
{code:java}
LogicalProject(DEPTNO=[$7])
LogicalFilter(condition=[OR(=($7, 1), =($7, 1), =($7, 2))])
LogicalTableScan(table=[[CATALOG, SALES, EMP]]) {code}
we can find that ($7, 1) is duplicate, we should distinct the conditions as:
{code:java}
LogicalProject(DEPTNO=[$7])
LogicalFilter(condition=[SEARCH($7, Sarg[1, 2])])
LogicalTableScan(table=[[CATALOG, SALES, EMP]]) {code}
maybe we can add a new rule to resolve the issue.
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