Re: grep -f keyword data query
| От | Tom Lane |
|---|---|
| Тема | Re: grep -f keyword data query |
| Дата | |
| Msg-id | 2978.1451241536@sss.pgh.pa.us обсуждение |
| Ответ на | Re: grep -f keyword data query (Andreas Kretschmer <andreas@a-kretschmer.de>) |
| Ответы |
Re: grep -f keyword data query
|
| Список | pgsql-general |
Andreas Kretschmer <andreas@a-kretschmer.de> writes:
>> Tom Lane <tgl@sss.pgh.pa.us> hat am 27. Dezember 2015 um 19:11 geschrieben:
>> What in the world is this @~ operator? And what sort of index are
>> you using now, that can accept it? Are the rowcount estimates in
>> the EXPLAIN output accurate? (If they are, it's hardly surprising
>> that the query takes a long time.)
> in a privat mail he called an other operator: ~~. I think, the @~ is an error.
Well, ~~ isn't directly indexable by btree indexes either, so there's
still something wrong with either the EXPLAIN output or the claimed
index definitions.
regards, tom lane
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