From: | Helge Bahmann <bahmann(at)math(dot)tu-freiberg(dot)de> |
---|---|
To: | Dave Smith <dave(dot)smith(at)candata(dot)com> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: Using index with order desc |
Date: | 2002-07-17 12:36:16 |
Message-ID: | Pine.LNX.4.44.0207171433070.19462-100000@lothlorien.stunet.tu-freiberg.de |
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Thread: | |
Lists: | pgsql-general |
On 16 Jul 2002 Dave Smith wrote:
> CREATE INDEX transfer_5 on transfer(company_id,module);
[snip]
> explain select * from transfer where company_id=1012 order by
> company_id,module desc;
[snip]
> NOTICE: QUERY PLAN:
>
> Sort (cost=462.74..462.74 rows=117 width=176)
> -> Index Scan using transfer_5 on transfer (cost=0.00..458.71
> rows=117 width=176)
yes, similiar problem once hit me as well... try:
explain select * from transfer where company_id=1012 order by
company_id desc, module desc;
^^^^
Regards
--
Helge Bahmann <bahmann(at)math(dot)tu-freiberg(dot)de> /| \__
The past: Smart users in front of dumb terminals /_|____\
_/\ | __)
$ ./configure \\ \|__/__|
checking whether build environment is sane... yes \\/___/ |
checking for AIX... no (we already did this) |
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