Re: Using Bitmap scan instead of Seq scan

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Jon Nelson <jnelson+pgsql(at)jamponi(dot)net>
Cc: David Johnston <polobo(at)yahoo(dot)com>, pgsql-general(at)postgresql(dot)org
Subject: Re: Using Bitmap scan instead of Seq scan
Date: 2011-02-14 18:54:01
Message-ID: 14303.1297709641@sss.pgh.pa.us
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Jon Nelson <jnelson+pgsql(at)jamponi(dot)net> writes:
> Does this suggest that the config items "disable_seqscan" (and friends)
> should be renamed to "avoid_seqscan" ?

Some of them actually are disable, some are only avoid. The
documentation says which is which, but I don't think creating a
distinction at the naming level would be helpful (especially since
the planner's behavior has been known to change from time to time).

regards, tom lane

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