Re: Query optimization

Durgamahesh Manne <maheshpostgres9@gmail.com>

From: Durgamahesh Manne <maheshpostgres9@gmail.com>
To: Rob Sargent <robjsargent@gmail.com>
Cc: Adrian Klaver <adrian.klaver@aklaver.com>, pgsql-general <pgsql-general@lists.postgresql.org>, laurenz.albe@cybertec.at
Date: 2025-03-14T02:39:46Z
Lists: pgsql-general
On Fri, 14 Mar, 2025, 08:04 Rob Sargent, <robjsargent@gmail.com> wrote:

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> 3) Output of EXPLAIN ANALYZE of query.
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>  Result  (cost=2.80..2.83 rows=1 width=1) (actual time=0.030..0.030 rows=1
> loops=1)
>    InitPlan 1 (returns $0)
>      ->  Index Only Scan using idx_cachekeys on cachekeys
>  (cost=0.55..2.80 rows=1 width=0) (actual time=0.029..0.029 rows=1 loops=1)
>            Index Cond: ((cachetype = 'BoMatrix'::text) AND (trsid =
> 'daznbetuk'::text) AND (brandid = 'daznbet'::text) AND (sportid =
> 'BOX'::text) AND (competitionid = 'U-1998'::text) AND (eventid =
> 'U-523596'::text))
>            Heap Fetches: 0
>  Planning Time: 0.221 ms
>  Execution Time: 0.046 ms
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> And is the explain analyze output if from your original query:
> "SELECT EXISTS (SELECT Key FROM CACHEKEYS WHERE CacheType = $1 AND TrsId
> = $2 AND BrandId = $3 AND SportId = $4 AND CompetitionId = $5 AND EventId =
> $6 AND MarketId = $7 LIMIT ?)”
>
> Has there been any significant addition of rows recently? i.e. are the
> statistics up-to-date for that table?
>
Hi

Gave you plan with out limit . Stats up to date insert .....on conflict do
nothing runs some times

Regards
Durga Mahesh

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