Re: Fast tsearch2, trigram matching on short phrases
| От | Carlo Stonebanks |
|---|---|
| Тема | Re: Fast tsearch2, trigram matching on short phrases |
| Дата | |
| Msg-id | fai61t$2ms6$1@news.hub.org обсуждение исходный текст |
| Ответ на | Re: Fast tsearch2, trigram matching on short phrases ("Steinar H. Gunderson" <sgunderson@bigfoot.com>) |
| Список | pgsql-performance |
In December I had tried this; it caused a tremendous slowdown in our system. I have avoided it since then. Do you expect pg_trgm to work with phrases? OI had read a post earlier from an earlier support question that suggested that it I SHOULD expect performance to degrade and that pg_trgrm was oriented towards word mathcing, not phrase matching. Carlo ""Steinar H. Gunderson"" <sgunderson@bigfoot.com> wrote in message news:20070822162950.GB24930@uio.no... > On Wed, Aug 22, 2007 at 12:02:54PM -0400, Carlo Stonebanks wrote: >> Any suggestions on where to go with this project to improve performance >> would be greatly appreciated. > > I'm a bit unsure from reading your mail -- have you tried pg_trgm with a > GiST > index? > > /* Steinar */ > -- > Homepage: http://www.sesse.net/ > > ---------------------------(end of broadcast)--------------------------- > TIP 9: In versions below 8.0, the planner will ignore your desire to > choose an index scan if your joining column's datatypes do not > match >
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