Re: problem: index on number not honoured
| От | Roland Roberts |
|---|---|
| Тема | Re: problem: index on number not honoured |
| Дата | |
| Msg-id | m2k7wsgfum.fsf@tycho.rlent.pnet обсуждение исходный текст |
| Ответ на | problem: index on number not honoured ("Ilker Egilmez" <ilker@gate5.de>) |
| Список | pgsql-sql |
>>>>> "Ilker" == Ilker Egilmez <ilker@gate5.de> writes: Ilker> an index on a table column of any number type only gets honoured if you Ilker> query it like a string, e.g. Ilker> create table t1 ( n int2 ) ; Ilker> create index t1n on t1 (n) ; Ilker> explain select * from t1 where n = 1 ; Ilker> -- Seq Scan on t1 (cost=0.00..22.50 rows=10 width=2) Ilker> explain select * from t1 where n = '1' ; Ilker> -- Index Scan using t1n on t1 (cost=0.00..8.14 rows=10 width=2) Two questions: have you run vacuum analyze on the table? have you submitted a bug report? roland -- PGP Key ID: 66 BC 3B CD Roland B. Roberts, PhD RL Enterprises roland@rlenter.com 76-15 113th Street, Apt 3B roland@astrofoto.org Forest Hills, NY 11375
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