Re: Convert date and time colums to datetime - Mailing list pgsql-general

From Rich Shepard
Subject Re: Convert date and time colums to datetime
Date
Msg-id b15aa3a-f878-cb2-1749-b418de4fabe@appl-ecosys.com
Whole thread Raw
In response to Re: Convert date and time colums to datetime  (Adrian Klaver <adrian.klaver@aklaver.com>)
Responses Re: Convert date and time colums to datetime
Re: Convert date and time colums to datetime
List pgsql-general
On Sun, 19 Oct 2025, Adrian Klaver wrote:

> 2) If you really need a timestamp the work is already done, instead of 
> building on the fly.

Adrian,

As each row in the table already has both a date column and a time column I
don't know if I 'really' need a timestamp. When would a timestamp be really
needed?

> select ('10/19/2025'::date + '07:50'::time)::timestamptz;

Yes, I saw that on the doc page. This requires manually changing each row in
the table rather than using a date/time condition/function to to create the
single timestamp column. So, apparently there's not a way to modify the
table other than by hand.

Thanks,

Rich



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