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Re: PostgreSQL does not choose my indexes well - Mailing list pgsql-performance

From Tom Lane
Subject Re: PostgreSQL does not choose my indexes well
Date
Msg-id 12521.1587674742@sss.pgh.pa.us
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In response to Re: PostgreSQL does not choose my indexes well  ("David G. Johnston" <david.g.johnston@gmail.com>)
Responses Re: PostgreSQL does not choose my indexes well
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"David G. Johnston" <david.g.johnston@gmail.com> writes:
> I noticed that too...I suspect its related to the ANALYZE result:

> Index Scan using idx_tabla_entidad on entidad (cost=0.56..51121.41
> rows=1405216 width=20) (actual time=0.037..242.609 rows=1409985 loops=1)
>    Index Cond: ((cod_tabla)::bigint = 4)

Yeah, that *strongly* suggests that cod_tabla isn't really bigint.
I'm wondering about domains, for instance.

            regards, tom lane

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