planner: use slices.Compact to deduplicate (pingcap#59214)

zz-jason · Jan 27, 2025 · 00ac9f8 · 00ac9f8
1 parent d0d4876
commit 00ac9f8
Showing 1 changed file with 2 additions and 7 deletions.
diff --git a/pkg/planner/core/rule_partition_processor.go b/pkg/planner/core/rule_partition_processor.go
@@ -411,13 +411,8 @@ func (s *PartitionProcessor) findUsedPartitions(ctx base.PlanContext,
 		return s.convertToIntSlice(or, pi, partitionNames), nil
 	}
 	slices.Sort(used)
-	ret := used[:0]
-	for i := 0; i < len(used); i++ {
-		if i == 0 || used[i] != used[i-1] {
-			ret = append(ret, used[i])
-		}
-	}
-	return ret, nil
+	used = slices.Compact(used)
+	return used, nil
 }
 
 func (s *PartitionProcessor) convertToIntSlice(or partitionRangeOR, pi *model.PartitionInfo, partitionNames []ast.CIStr) []int {