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BUG #15698: to_char doesn't return expected value with negative INTERVAL - Mailing list pgsql-bugs

From PG Bug reporting form
Subject BUG #15698: to_char doesn't return expected value with negative INTERVAL
Date
Msg-id 15698-73406d98ae47f2af@postgresql.org
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Responses Re: BUG #15698: to_char doesn't return expected value with negativeINTERVAL
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The following bug has been logged on the website:

Bug reference:      15698
Logged by:          Sébastien Celles
Email address:      s.celles@gmail.com
PostgreSQL version: 10.5
Operating system:   Windows 10
Description:

Hello,

This is my first bug report here (despite I'm using PostgreSQL since many
years !)

I don't know if it's a bug... but the following query

    SELECT to_char(-(3 * 60 * 60 * 1000 + 7*60 * 1000 + 12345) * INTERVAL '1
millisecond', 'HH24:MI:SS.MS') as interv;

doesn't return the result I was expecting.

It returns:

    '-03:-07:-12.-345'

I was expecting

    '-03:07:12.345'

If it's not a bug (but a feature ;-) )... is there a way to return result as
I was expecting.

Kind regards

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