Fix: tojson(null) == 'null' (#1068)

* Fix: tojson(null) == 'null' * Update test * Update functions_test.go
2022-03-22 09:55:13 +01:00
parent 87175ecb68
commit 5083284deb
2 changed files with 2 additions and 1 deletions
--- a/pkg/exprparser/functions.go
+++ b/pkg/exprparser/functions.go
@@ -151,7 +151,7 @@ func (impl *interperterImpl) join(array reflect.Value, sep reflect.Value) (strin

 func (impl *interperterImpl) toJSON(value reflect.Value) (string, error) {
 	if value.Kind() == reflect.Invalid {
-		return "", nil
+		return "null", nil
 	}

 	json, err := json.MarshalIndent(value.Interface(), "", "  ")