update

Signed-off-by: Weizhen Wang <wangweizhen@pingcap.com>

pkg/expression/explain.go

@@ -224,9 +224,6 @@ func sortedExplainExpressionList(ctx EvalContext, exprs []Expression, normalized
 	buffer := bytes.NewBufferString("")
 	exprInfos := make([]string, 0, len(exprs))
 	for _, expr := range exprs {
-		if expr == nil {
-			continue
-		}
 		if ignoreInlist {
 			exprInfos = append(exprInfos, expr.ExplainNormalizedInfo4InList())
 		} else if normalized {

pkg/planner/core/optimizer.go

@@ -366,7 +366,7 @@ func mergeContinuousSelections(p base.PhysicalPlan) {
 				break
 			}
 			sel.Conditions = append(sel.Conditions, tmp.Conditions...)
-			slices.Compact(sel.Conditions)
+			sel.Conditions = slices.Compact(sel.Conditions)
 			sel.SetChild(0, tmp.Children()[0])
 		}
 	}