From: | Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com> |
---|---|
To: | John Burns <john(at)impactdatametrics(dot)com>, pgsql-bugs(at)lists(dot)postgresql(dot)org |
Subject: | Re: Index plan returns different results to sequential scan |
Date: | 2024-03-21 19:27:00 |
Message-ID: | 72600f8a-4231-45b7-a116-8ceec5ccf66e@enterprisedb.com |
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Lists: | pgsql-bugs |
On 3/21/24 18:25, John Burns wrote:
> Hi…
>
> ...
>
> Although the postcode package is probably not especially significant
> in the scheme of things , the behaviour of indexed versus non-indexed
> queries is worrisome.
>
Seems like a thinko in the indexing, but that's just a guess.
> I’ve had to make a couple of minor changes to the postcode package
> as the Postgres versions have changed, i.e. define TRUE and FALSE in
> the c header files and change the location of the include files when
> Postgres 16 arrived, but nothing else.
Can you share a patch with the tweaks?
>
> I’ve attached a sample data file to populate a table that exhibits
> the behaviour, and the tweaked version of the Postcode package.
>
I don't see any attachments :-(
regards
--
Tomas Vondra
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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