| From: | "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com> |
|---|---|
| To: | Maulik Shah <mauliks(at)rosconsultancy(dot)in> |
| Cc: | "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: how to convert float to timestamp in single select query |
| Date: | 2015-04-01 06:51:30 |
| Message-ID: | CAKFQuwZUwkrFPus_8qiPuPYVBLz=X2C6d=wF2y=3j=mSmJv83g@mail.gmail.com |
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| Lists: | pgsql-general |
On Sun, Mar 29, 2015 at 8:52 PM, Maulik Shah <mauliks(at)rosconsultancy(dot)in>
wrote:
> Dear Sir/Madam
>
>
> how to convert float to timestamp in single select query
>
> for exp. i have float as 1.251152515236 ,
>
> i want to convert this to datetime and from datetime to timestamp...
> i.e. 02:22:044456
>
You imply that (float) 1.251152515236 is equal to (time) 02:22:044456
I have no clue what formula: f(x) = ?x? would satisfy f(1.251152515236) =
'02:22:044456'::time
Once you answer that you can either inline said formula or create a
user-defined function to encapsulate it. See the documentation for the how.
David J.
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