# Issue #61568: planner: remove duplicated predicates in CNF or DNF

## Metadata
- Issue: https://github.com/pingcap/tidb/issues/61568
- Status: open
- Type: type/enhancement
- Created At: 2025-06-07T03:11:17Z
- Labels: report/customer, sig/planner, type/enhancement

## Customer-Facing Phenomenon
- The DNF in this query is generated by code, so there might be some duplicated predicates: . Since there are 3 duplicated predicates, we have to execute the same three times. The optimizer should remove these duplicated predicates automatically, and the final optimal plan should be:

## Linked PRs
- No linked PR was found from the issue timeline.

## Notes
- This issue is still open. Use this file as a reminder list for customer-driven gaps that still need a fix or a completed rollout.