Re: How to detect if a postgresql gin index is bloated

On Thu, Jul 25, 2024 at 8:59 AM khan Affan <bawag773(at)gmail(dot)com> wrote:

> Hello Kam Fook
> You can use pgstattuple extension, & you can use pg_trgm or
> gin_index_stats functions from the pgstattuple extension to check for bloat
> in GIN indexes.
> Thank & Regards
>
> *Muhammad Affan (*아판*)*
>
> *PostgreSQL Technical Support Engineer** / Pakistan R&D*
>
> On Thu, Jul 25, 2024 at 2:07 AM Wong, Kam Fook (TR Technology) <
> kamfook(dot)wong(at)thomsonreuters(dot)com> wrote:
>
>> I have a GIN index. Is there a way to detect if a postgres GIN index is
>> bloated or not? The regular select * from pgstatindex(‘indexname’); does
>> not work because the GIN index is not btree index.
>>
>>
>>
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>

Any more insight on how to use those two options to actually calculate GIN
bloat? From what I could tell pgstattuple didn't provide anything that
could be used. I hadn't looked further into the other yet, but if you know
how to do that already that info would be great.

--
Keith Fiske
Senior Database Engineer
Crunchy Data - http://crunchydata.com