Paul van Helden wrote: > Is this correct? Should update triggers not only fire for actual changes? I > have a large table with a column which contains all NULL values except for > 4. I expected an UPDATE table SET column=NULL to only fire 4 triggers, > except it fires for every row.
I'm pretty sure that sqlite3_changes() in this case also returns *all* rows, not only 4 "really" changed. If you want triggers to only fire for really changed rows (and sqlite3_changes() to return only those 4 rows), you should add WHERE clause: UPDATE table SET column=NULL WHERE column IS NOT NULL; _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
