From: | Bruce Momjian <bruce(at)momjian(dot)us> |
---|---|
To: | aditya desai <admad123(at)gmail(dot)com> |
Cc: | Michael Lewis <mlewis(at)entrata(dot)com>, Pgsql Performance <pgsql-performance(at)lists(dot)postgresql(dot)org> |
Subject: | Re: SELECT Query taking 200 ms on PostgreSQL compared to 4 ms on Oracle after migration. |
Date: | 2021-04-03 15:04:17 |
Message-ID: | 20210403150417.GC29125@momjian.us |
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Lists: | pgsql-hackers pgsql-performance |
On Sat, Apr 3, 2021 at 08:29:22PM +0530, aditya desai wrote:
> Hi Michael,
> Thanks for your response.
> Is this table partitioned? - No
> How long ago was migration done? - 27th March 2021
> Has vacuum freeze and analyze of tables been done? - We ran vacuum analyze.
> Was index created after populating data or reindexed after perhaps? - Index
> was created after data load and reindex was executed on all tables yesterday.
> Version is PostgreSQL-11
FYI, the output of these queries will show u what changes have been made
to the configuration file:
SELECT version();
SELECT name, current_setting(name), source
FROM pg_settings
WHERE source NOT IN ('default', 'override');
--
Bruce Momjian <bruce(at)momjian(dot)us> https://momjian.us
EDB https://enterprisedb.com
If only the physical world exists, free will is an illusion.
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