Right now, Database::_select_update_or_insert_row and Database::select_rows can't look for a row with NULL value because it always uses '=' for comparison. Add the support for querying a database entry with NULL value.
Created attachment 304130 [details] Adds the support
Comment on attachment 304130 [details] Adds the support Clearing flags on attachment: 304130 Committed r213870: <http://trac.webkit.org/changeset/213870>
All reviewed patches have been landed. Closing bug.