Re: Need an idea to operate massive delete operation on big size table.

From: Ron Johnson <ronljohnsonjr(at)gmail(dot)com>
To: Pgsql-admin <pgsql-admin(at)lists(dot)postgresql(dot)org>
Subject: Re: Need an idea to operate massive delete operation on big size table.
Date: 2025-01-15 15:08:32
Message-ID: CANzqJaDsDMzwf_YAN3_gXqdUji1GvJg-M4Bn-kW_UT5xy0HB-g@mail.gmail.com
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On Wed, Jan 15, 2025 at 9:54 AM Gambhir Singh <gambhir(dot)singh05(at)gmail(dot)com>
wrote:

> Hi,
>
> I received a request from a client to delete duplicate records from a
> table which is very large in size.
>
> Delete queries (~2 Billion) are provided via file, and we have to execute
> that file in DB. Last time it lasted for two days. I feel there must be
> another way to delete records in an efficient manner
>

Maybe the delete "queries" are poorly written. Maybe there's no supporting
index.

--
Death to <Redacted>, and butter sauce.
Don't boil me, I'm still alive.
<Redacted> lobster!

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