https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=15406 Frédéric Demians <frederic@tamil.fr> changed: What |Removed |Added ---------------------------------------------------------------------------- Depends on| |15106 Status|NEW |In Discussion --- Comment #1 from Frédéric Demians <frederic@tamil.fr> --- Bug 15106 contains the solution. Especially, an index must be added to biblioitems/deletebiblioitems timestamp field: KEY `timestamp_bibno` (`timestamp`, `biblionumber`) You can confirm that this solution works for you by altering your DB schema: ALTER TABLE biblioitems ADD KEY `timestamp_bibno` (`timestamp`, `biblionumber`); ALTER TABLE deletedbiblioitems ADD KEY `timestamp_bibno` (`timestamp`, `biblionumber`) Referenced Bugs: https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=15106 [Bug 15106] Batch Patron Modification Performance Improvement -- You are receiving this mail because: You are the assignee for the bug. You are watching all bug changes.