Message-ID: <bb9cf18a-c83c-4857-b3f0-4566918b0249@enterprisedb.com>
Date: Fri, 22 Mar 2024 08:43:45 +0100
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Subject: Re: Index plan returns different results to sequential scan
To: Peter Geoghegan <pg@bowt.ie>
Cc: John Burns <john@impactdatametrics.com>, pgsql-bugs@lists.postgresql.org
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From: Tomas Vondra <tomas.vondra@enterprisedb.com>
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On 3/22/24 02:40, Peter Geoghegan wrote:
> On Thu, Mar 21, 2024 at 9:22 PM Tomas Vondra
> <tomas.vondra@enterprisedb.com> wrote:
>> I don't know what the problem is, or whether it's a big in PG or in the
>> postcode extension (I agree the extension is fairly straightforward).
> 
> Could you try running amcheck's bt_index_check function against the index?
> 

I tried (on master). It doesn't report anything:

test=# select bt_index_check('xxx_postcode_idx', 't');
 bt_index_check
----------------

(1 row)

I also tried looking at the index using bt_page_items from pageinspect,
and I did not notice anything obviously wrong. But I don't have much
experience with btree at such low level ...


regards

-- 
Tomas Vondra
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