diff --git a/core/collection_model.go b/core/collection_model.go
index 93b67fe2..107dc194 100644
--- a/core/collection_model.go
+++ b/core/collection_model.go
@@ -28,6 +28,8 @@ const (
 
 const systemHookIdCollection = "__pbCollectionSystemHook__"
 
+const defaultLowercaseRecordIdPattern = "^[a-z0-9]+$"
+
 func (app *BaseApp) registerCollectionHooks() {
 	app.OnModelValidate().Bind(&hook.Handler[*ModelEvent]{
 		Id: systemHookIdCollection,
@@ -890,7 +892,7 @@ func (c *Collection) initIdField() {
 			Required:            true,
 			Min:                 15,
 			Max:                 15,
-			Pattern:             `^[a-z0-9]+$`,
+			Pattern:             defaultLowercaseRecordIdPattern,
 			AutogeneratePattern: `[a-z0-9]{15}`,
 		}
 
@@ -903,7 +905,7 @@ func (c *Collection) initIdField() {
 		field.PrimaryKey = true
 		field.Hidden = false
 		if field.Pattern == "" {
-			field.Pattern = `^[a-z0-9]+$`
+			field.Pattern = defaultLowercaseRecordIdPattern
 		}
 	}
 }
diff --git a/core/field_text.go b/core/field_text.go
index 87c29e1f..e86c9946 100644
--- a/core/field_text.go
+++ b/core/field_text.go
@@ -192,15 +192,17 @@ func (f *TextField) ValidateValue(ctx context.Context, app App, record *Record)
 			// side-effects on some platforms check for duplicates in a case-insensitive manner
 			//
 			// (@todo eventually may get replaced in the future with a system unique constraint to avoid races or wrapping the request in a transaction)
-			var exists bool
-			err := app.DB().
-				Select("(1)").
-				From(record.TableName()).
-				Where(dbx.NewExp("id = {:id} COLLATE NOCASE", dbx.Params{"id": strings.ToLower(newVal)})).
-				Limit(1).
-				Row(&exists)
-			if exists || (err != nil && !errors.Is(err, sql.ErrNoRows)) {
-				return validation.NewError("validation_pk_invalid", "The record primary key is invalid or already exists.")
+			if f.Pattern != defaultLowercaseRecordIdPattern {
+				var exists bool
+				err := app.DB().
+					Select("(1)").
+					From(record.TableName()).
+					Where(dbx.NewExp("id = {:id} COLLATE NOCASE", dbx.Params{"id": strings.ToLower(newVal)})).
+					Limit(1).
+					Row(&exists)
+				if exists || (err != nil && !errors.Is(err, sql.ErrNoRows)) {
+					return validation.NewError("validation_pk_invalid", "The record primary key is invalid or already exists.")
+				}
 			}
 		}
 	}