Re: Creating index does not make any change in query plan.
От | Deepa |
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Тема | Re: Creating index does not make any change in query plan. |
Дата | |
Msg-id | Pine.LNX.4.33.0302171529390.10556-100000@ws1154.midascomm.com обсуждение исходный текст |
Ответ на | Re: Creating index does not make any change in query plan. ("Shridhar Daithankar" <shridhar_daithankar@persistent.co.in>) |
Список | pgsql-general |
On Mon, 17 Feb 2003, Shridhar Daithankar wrote: Sorry its not exactly 4 bytes, its greate than 4 bytes. > On 17 Feb 2003 at 15:14, Deepa wrote: > > > On Mon, 17 Feb 2003, Shridhar Daithankar wrote: > > > > > when you say id=2, it uses default int type which is smallint, AFAIK. So > > > smallint != bigint and hence planner does not consider using index. > > > > But even when a number that has a value of 4 bytes is set in the where > > condition, the planner is not uses indexed scan. In this case how come > > this will take the number as small int. Is their any other reason for > > that. > > 4 bytes != bigint. > > Bye > Shridhar > > -- > wok, n.: Something to thwow at a wabbit. > > > ---------------------------(end of broadcast)--------------------------- > TIP 1: subscribe and unsubscribe commands go to majordomo@postgresql.org > -- Bye, Deepa. K -- Engineer, Network Management System, Midas Communication Technologies private Ltd, Chennai.
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