From: | Teodor Sigaev <teodor(at)sigaev(dot)ru> |
---|---|
To: | Kevin Murphy <murphy(at)genome(dot)chop(dot)edu> |
Cc: | PostgreSQL general <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: number of distinct values in tsearch2 gist index |
Date: | 2006-07-31 09:58:27 |
Message-ID: | 44CDD443.7020700@sigaev.ru |
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Thread: | |
Lists: | pgsql-general |
vacuum;
Kevin Murphy wrote:
> In the output of gist_stat() in the gevel contrib module, is the number
> of tuples the number of distinct values stored in the index? Is the
> number (6M) so large because the positions are part of the values? I'm
> guessing I can't determine the number of distinct lexemes from the
> output of gist_stat() ....
>
> select gist_stat('idxfti_idex');
> gist_stat
> ------------------------------
> Number of levels: 5
> Number of pages: 244881
> Number of leaf pages: 234515
> Number of tuples: 6017003
> Number of invalid tuples: 0
> Number of leaf tuples: 5772123
> Total size of tuples: 1846434636 bytes
> Total size of leaf tuples: 1779845516 bytes
> Total size of index: 2006065152 bytes
>
> (1 row)
>
> Time: 193023.012 ms
>
> Thanks,
> Kevin Murphy
>
>
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> TIP 5: don't forget to increase your free space map settings
--
Teodor Sigaev E-mail: teodor(at)sigaev(dot)ru
WWW: http://www.sigaev.ru/
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