diff --git a/store/db/mysql/memo_filter.go b/store/db/mysql/memo_filter.go
index 8807c1e8274dc..e32ab41dcfac8 100644
--- a/store/db/mysql/memo_filter.go
+++ b/store/db/mysql/memo_filter.go
@@ -13,8 +13,7 @@ import (
 )
 
 func ConvertExprToSQL(ctx *filter.ConvertContext, expr *exprv1.Expr) error {
-	switch v := expr.ExprKind.(type) {
-	case *exprv1.Expr_CallExpr:
+	if v, ok := expr.ExprKind.(*exprv1.Expr_CallExpr); ok {
 		switch v.CallExpr.Function {
 		case "_||_", "_&&_":
 			if len(v.CallExpr.Args) != 2 {
diff --git a/store/db/postgres/memo_filter.go b/store/db/postgres/memo_filter.go
index 06daaad2700fc..4e6608bb4bb64 100644
--- a/store/db/postgres/memo_filter.go
+++ b/store/db/postgres/memo_filter.go
@@ -13,8 +13,7 @@ import (
 )
 
 func ConvertExprToSQL(ctx *filter.ConvertContext, expr *exprv1.Expr) error {
-	switch v := expr.ExprKind.(type) {
-	case *exprv1.Expr_CallExpr:
+	if v, ok := expr.ExprKind.(*exprv1.Expr_CallExpr); ok {
 		switch v.CallExpr.Function {
 		case "_||_", "_&&_":
 			if len(v.CallExpr.Args) != 2 {
diff --git a/store/db/sqlite/memo_filter.go b/store/db/sqlite/memo_filter.go
index c56530c02794b..3103a1ed63223 100644
--- a/store/db/sqlite/memo_filter.go
+++ b/store/db/sqlite/memo_filter.go
@@ -13,8 +13,7 @@ import (
 )
 
 func ConvertExprToSQL(ctx *filter.ConvertContext, expr *exprv1.Expr) error {
-	switch v := expr.ExprKind.(type) {
-	case *exprv1.Expr_CallExpr:
+	if v, ok := expr.ExprKind.(*exprv1.Expr_CallExpr); ok {
 		switch v.CallExpr.Function {
 		case "_||_", "_&&_":
 			if len(v.CallExpr.Args) != 2 {