From: Tom Lane <tgl@sss.pgh.pa.us>
To: Kenny Bachman <kenny.bachman17@gmail.com>
Cc: pgsql-admin@lists.postgresql.org
Subject: Re: postrgesql query planner wrong desicion
Date: Fri, 17 Jun 2022 10:19:32 -0400
Message-ID: <1217742.1655475572@sss.pgh.pa.us> (raw)
In-Reply-To: <CAC0w7LKM16y0FuBBqMP6wkaRR2JHvLjYcSg-O8URerH4_8Yi2g@mail.gmail.com>
References: <CAC0w7LKM16y0FuBBqMP6wkaRR2JHvLjYcSg-O8URerH4_8Yi2g@mail.gmail.com>
Kenny Bachman <kenny.bachman17@gmail.com> writes:
> With GIST Index: (Total exec time : 34s)
> Index Scan using "Pool_Party_Code_gist" on "Pool_Party" (cost=0.28..8.30
> rows=1 width=4) (actual time=0.097..0.097 rows=1 loops=330870)
> Index Cond: (("Code")::text =
> 'TEAM-FIXPOWERUSER'::text)
> Without GIST Index: (Total exec time: 4s)
> Index Scan using "Pool_Party_Code_idx" on "Pool_Party" (cost=0.42..8.44
> rows=1 width=4) (actual time=0.007..0.007 rows=1 loops=330870)
> Index Cond: (("Code")::text =
> 'TEAM-FIXPOWERUSER'::text)
Why do you have a gist index on a column that's apparently plain
text (or varchar)? It seems kinda pointless, and the more so if
it duplicates a btree index.
regards, tom lane
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To: pgsql-admin@postgresql.org
Cc: tgl@sss.pgh.pa.us, kenny.bachman17@gmail.com, pgsql-admin@lists.postgresql.org
Subject: Re: postrgesql query planner wrong desicion
In-Reply-To: <1217742.1655475572@sss.pgh.pa.us>
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