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From: Durgamahesh Manne <[email protected]>
To: [email protected]
Cc: [email protected] <[email protected]>
Subject: Regarding use case of epoch to generate nanoseconds precision
Date: Wed, 22 May 2024 14:56:26 +0530
Message-ID: <CAJCZkoJQ9n1o_+1CWAE2gNtSdWxU_MM460dr3Gq69jZr43e_+w@mail.gmail.com> (raw)

Hi

Postgres supports only upto microseconds (6 decimal precision).
How do we generate timestamp with nanoseconds as rds postgres not
supported timestamp9 extension ?
Is there a way to generate timestamp with nanoseconds precision on
pg_partman with epoch without typecasting or with typecasting  ?

p_epoch =>   (to_timestamp(control column))
Here what is the control column?
How to run it with the create_parent function of partman?

Here as per the pg_partman doc
p_epoch - tells pg_partman that the control column is an integer type, but
actually represents an epoch time value. Valid values for this option are:
'seconds', 'milliseconds', 'nanoseconds', and 'none'. The default is
'none'. All table names will be time-based. In addition to a normal index
on the control column, be sure you create a functional, time-based index on
the control column (to_timestamp(control column)) as well so this works
efficiently.


Regards,
Durga Mahesh Manne

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