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From: Durgamahesh Manne <[email protected]>
To: pgsql-general <[email protected]>
Subject: Regarding query optimisation (select for update)
Date: Tue, 15 Jul 2025 15:40:34 +0530
Message-ID: <CAJCZko+fiU+=NSEGY7d7YMpFxg_jANpiO-LU6ur+yqRc_Ej6eQ@mail.gmail.com> (raw)

Hi Team,

We are facing issues with slow running query
   SELECT betid, versionid, betdata, processed, messagetime, createdat,
updatedat FROM praermabetdata where processed = 'false' ORDER BY betid,
versionid LIMIT 200 OFFSET 0 FOR UPDATE;

                                                         QUERY PLAN
--------------------------------------------------------------------------------------------------------------------------------
 Limit  (cost=0.28..1.89 rows=1 width=78)
   ->  LockRows  (cost=0.28..1.89 rows=1 width=78)
         ->  Index Scan using idx_praermabetdata_processed_betid_versionid
on praermabetdata  (cost=0.28..1.88 rows=1 width=78)
               Index Cond: (processed = false)

[image: image.png]

Do we have any alternative way to improve the performance?
Sometimes processed column use true as well as false

Regards,
Durga Mahesh


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