Re: insert
От | Paul Thomas |
---|---|
Тема | Re: insert |
Дата | |
Msg-id | 20040813134115.A12181@bacon обсуждение исходный текст |
Ответ на | Re: insert (Ulrich Wisser <ulrich.wisser@relevanttraffic.se>) |
Список | pgsql-performance |
On 13/08/2004 13:10 Ulrich Wisser wrote: > Hi, > > my inserts are done in one transaction, but due to some foreign key > constraints and five indexes sometimes the 100 inserts will take more > than 5 minutes. Two possibilities come to mind: a) you need an index on the referenced FK field b) you have an index but a type mis-match (e.g, an int4 field referencing an int8 field) Either of these will cause a sequential table scan and poor performance. -- Paul Thomas +------------------------------+---------------------------------------------+ | Thomas Micro Systems Limited | Software Solutions for Business | | Computer Consultants | http://www.thomas-micro-systems-ltd.co.uk | +------------------------------+---------------------------------------------+
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