progress

README.md

@@ -21,5 +21,15 @@ DELETE FROM users WHERE name = 'bob';
 ```sql
 DELETE FROM calendars WHERE name = 'bob_calendar' AND owner_id = (SELECT id FROM users WHERE name = 'bob');
 /* or */
-DELETE FROM calendars WHERE path = '/bob/calendars/bob_calendar/';
+DELETE FROM calendars WHERE ;
+```
+## rename calendar
+```sql
+UPDATE calendars SET name = 'new', path '/bob/calendars/new/' WHERE path = '/bob/calendars/old/';
+UPDATE calendar_objects SET path = regexp_replace(path, '/old/', '/new/')' WHERE your_column ~ '/sport/';
+```
+
+## Match Value in calendar objects
+```sql
+select id, path, linecut from calendar_objects, LATERAL regexp_split_to_table(data, E'\r\n') AS linecut where linecut ~ 'CLASS';
 ```