https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=21901 --- Comment #19 from Frank Hansen <frank.hansen@ub.lu.se> --- Hi,
0/ It would be useful to test the update DB entry on a big and old production DB, to make sure the constraints will be added correctly.
2/ Make sure you can upgrade from a master install This step went well, no errors. I think it is good that orphaned entries is removed before creating the FK constraints. It turned out in our case there were data that were migrated from our previous system by mistake. So the subscription was actually deleted in the
Here in Lund we have tested your fix on a clone of our production DB with over 90000 subscriptions and the short story is that we are satisfied of what the fix accomplish. old system. So, we didn't lose any important data anyway.
3/ Create a subscription, serial, etc. and delete the biblio => The subscription/serials should have been deleted from the DB The fix does what it should. And the performance has also improved significantly which is important from my perspective.
4/ Create a subscription, serial, etc. and delete the subscription => The serials should have been deleted from the DB The fix does what it should. Works fine.
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