Re: Index plan returns different results to sequential scan

On 3/22/24 02:40, Peter Geoghegan wrote:
> On Thu, Mar 21, 2024 at 9:22 PM Tomas Vondra
> <tomas(dot)vondra(at)enterprisedb(dot)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
EnterpriseDB: http://www.enterprisedb.com
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