[Koha-bugs] [Bug 36033] Table pseudonymized_transactions needs more indexes

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=36033

Marcel de Rooy <m.de.rooy at rijksmuseum.nl> changed:

           What    |Removed                     |Added
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                 CC|                            |m.de.rooy at rijksmuseum.nl

--- Comment #5 from Marcel de Rooy <m.de.rooy at rijksmuseum.nl> ---
(In reply to Fridolin Somers from comment #0)
> To improve SQL queries performance, it needs more indexes, specially on
> itemnumber.

Could you provide further details for the need of those indexes? I am seeing a
search on datetime in cleanup_database.
Where, when do we need the other ones?

   KEY `pseudonymized_transactions_ibfk_1` (`categorycode`),
   KEY `pseudonymized_transactions_borrowers_ibfk_2` (`branchcode`),
-  KEY `pseudonymized_transactions_borrowers_ibfk_3` (`transaction_branchcode`)
+  KEY `pseudonymized_transactions_borrowers_ibfk_3`
(`transaction_branchcode`),
+  KEY `pseudonymized_transactions_items_ibfk_4` (`itemnumber`),
+  KEY `pseudonymized_transactions_ibfk_5` (`transaction_type`),
+  KEY `pseudonymized_transactions_ibfk_6` (`datetime`)

The names are confusing? But seeing more confusion in structure there. No
blocker.

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