Re: date format - Mailing list pgsql-general

From Marc Millas
Subject Re: date format
Date
Msg-id CADX_1aatzh13gdbi=rV11xcb12mewVQMrzfixhJQcyJ=mvSA6g@mail.gmail.com
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In response to Re: date format  ("David G. Johnston" <david.g.johnston@gmail.com>)
Responses Re: date format  (Ron <ronljohnsonjr@gmail.com>)
Re: date format  (Laurenz Albe <laurenz.albe@cybertec.at>)
List pgsql-general

On Wed, Jun 14, 2023 at 7:27 PM David G. Johnston <david.g.johnston@gmail.com> wrote:
On Wed, Jun 14, 2023 at 9:42 AM Marc Millas <marc.millas@mokadb.com> wrote:
Hi,

I would like to load data from a file via file_fdw or COPY.. its a postgres 14 cluster

but.. One date (timestamp) column is written french order and another column is written english order. Data comes from a state owned entity so asking for a normalization may take ages.

obviously I could load as char and then apply an appropriate transformation. no pb.
But is there a direct way to do this ?

Probably no - casting formats via locale cannot be specified at that scope when using copy.  Either the cast for a given single setting produces the correct result or it doesn't.  If you need a custom cast like this you have to get away from COPY first.  Usually that is best done after importing data to a temporary table as text.

David J.

So, creating a foreign table with varchar type, and then doing the insert as select with the appropriate format.. clear.
somewhat sad as it was a one step process with the former oracle db we get rid off.

Marc 

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