diff --git a/expression/expression_test.go b/expression/expression_test.go
index e80cf5c41d575..63df451c98a37 100644
--- a/expression/expression_test.go
+++ b/expression/expression_test.go
@@ -77,7 +77,7 @@ func TestEvaluateExprWithNullAndParameters(t *testing.T) {
 	res = EvaluateExprWithNull(ctx, schema, ltWithParam)
 	_, isConst := res.(*Constant)
 	require.True(t, isConst) // this expression is evaluated and skip-plan cache flag is set.
-	require.True(t, ctx.GetSessionVars().StmtCtx.SkipPlanCache)
+	require.True(t, ctx.GetSessionVars().StmtCtx.UseCache)
 }
 
 func TestEvaluateExprWithNullNoChangeRetType(t *testing.T) {
diff --git a/planner/core/expression_rewriter.go b/planner/core/expression_rewriter.go
index 570a030a626fd..fcc81790cf074 100644
--- a/planner/core/expression_rewriter.go
+++ b/planner/core/expression_rewriter.go
@@ -1553,12 +1553,7 @@ func (er *expressionRewriter) inToExpression(lLen int, not bool, tp *types.Field
 					if c.GetType().EvalType() == types.ETInt {
 						continue // no need to refine it
 					}
-<<<<<<< HEAD
 					er.sctx.GetSessionVars().StmtCtx.SetSkipPlanCache(errors.Errorf("skip plan-cache: '%v' may be converted to INT", c.String()))
-=======
-				} else if !er.sctx.GetSessionVars().StmtCtx.UseCache {
-					// We should remove the mutable constant for correctness, because its value may be changed.
->>>>>>> ffaf2ac9eee (planner: remove the unnecessary skip-plan-cache flag in StmtCtx (#40235))
 					expression.RemoveMutableConst(er.sctx, []expression.Expression{c})
 				}
 				args[i], isExceptional = expression.RefineComparedConstant(er.sctx, *leftFt, c, opcode.EQ)