RE: [firebird-support] RE: Table update performance dropped significantly within few days.

2014-01-15 Thread Evelyne Girard
32 MB. The page size is in bytes. If you did not have enough memory, the server will refuse to open the connection (needing the extra memory) if I remember well. De : brucedickin...@wp.pl [mailto:brucedickin...@wp.pl] Envoyé : 15 janvier 2014 14:53 À : firebird-support@yahoogroups.com Objet :

[firebird-support] Outdated indices

2014-01-09 Thread Evelyne Girard
rebuild the indices if I set them inactive/active but it is impraticable in a 24/7 system because simultaneous queries raise exceptions. Firebird 2.5.1 and 2.5.2 32 bits and 64 bits Superservers on Windows Thank you for any advice ! Evelyne Girard

RE: [firebird-support] Outdated indices

2014-01-09 Thread Evelyne Girard
Thanks a lot for your answer Dimitry, your problem is versions, because index keep all keys for all versions. If you have active transactions, garbage collection does not work, and obsolete keys and versions are not cleaned. Check gstat -r to see how many versions tables have when you have

RE: [firebird-support] RE: Unecessary reads when update referenced table ?

2013-10-23 Thread Evelyne Girard
The triggers only modify current record on update. I’m not 100% sure it is the dependant tables that the indexed reads do read … but it seemed a semi-logical explanation since my update does a natural scan … if this weird behavior is only happening in my databases I will try to find some time