public inbox for [email protected]
help / color / mirror / Atom feedFrom: Tom Lane <[email protected]>
To: Bill Martin <[email protected]>
Cc: [email protected] <[email protected]>
Subject: Re: Planner selects different execution plans depending on limit
Date: Thu, 13 Sep 2012 13:33:19 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <D48BF41C96B16442B542F5E25C259047011E811299@COM211.communardo.local>
References: <D48BF41C96B16442B542F5E25C259047011E80F02A@COM211.communardo.local>
<[email protected]>
<[email protected]>
<D48BF41C96B16442B542F5E25C259047011E811299@COM211.communardo.local>
Bill Martin <[email protected]> writes:
> Tom Lane <[email protected]> writes:
>> He can do it without having to change his schema --- but it's the index
>> column, not the underlying content column, that needs its statistics
>> target adjusted.
> How can I adjust the statistics target of the index?
Just pretend it's a table.
ALTER TABLE index_name ALTER COLUMN column_name SET STATISTICS ...
You'll need to look at the index (eg with \d) to see what the name of
the desired column is, since index expressions have system-assigned
column names.
regards, tom lane
view thread (9+ messages) latest in thread
reply
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: [email protected]
Cc: [email protected], [email protected], [email protected]
Subject: Re: Planner selects different execution plans depending on limit
In-Reply-To: <[email protected]>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox