Re: converting big int to date - Mailing list pgsql-sql

From Jasen Betts
Subject Re: converting big int to date
Date
Msg-id imkdnr$duk$5@reversiblemaps.ath.cx
Whole thread Raw
In response to Re: converting big int to date  (Sree <mail2mail@gmail.com>)
List pgsql-sql
On 2011-03-23, Sree <mail2mail@gmail.com> wrote:
> --90e6ba2123fbe15f02049f2ccf73
> Content-Type: text/plain; charset=ISO-8859-1
>
> How can i convert bigint to date format.
>
> bigint=616962528000000000


that's got the right number of zeros to
be a date expressed as microseconds since epoch

in which case the magic spell is
select 'epoch'::timestamptz           + '1s'::interval               * (616962528000000000::bigint /1000000000.0);
givesme a date in 1989
 
if it's some from a microsoft inspored system instead of AT&T inspired
you might need to add '10 years'::interval to the result.

-- 
⚂⚃ 100% natural



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