devdocs/specs/core-list-graph-datatable-filter-sort.txt

@@ -92,7 +92,7 @@ TAGS - At server if equality compare value is an array of strings then it's assu
 
 Also relative date filters are supported and their implementation is entirely a CLIENT responsibility as it touches on Locale issues:
 
-public const string Null = "{[null]}";
+public const string Null = "*NULL*";
 //         public const string Yesterday = "{[yesterday]}";
 //         public const string Today = "{[today]}";
 //         public const string Tomorrow = "{[tomorrow]}";
@@ -172,7 +172,7 @@ Filters are saved to the database:
             - value = string version of direct comparison value or could be a special token meaning more
                 - Never an empty string, empty string is invalid value
                 - All Tokens are a value surrounded by this fragment: "{[XXX]}" where XXX is the token
-                - if empty or null then will be a token "{[null]}" 
+                - if empty or null then will be a token "*NULL*" 
                 - If string then a string fragment, case is sensitive
                 - If date then iso style date //RAVEN NOTE: it is my intention that dates come in iso8601 UTC format from the client
                 - could be whole number or decimal number