Обсуждение: Setting date format for a single output column?
I'd like to get date columns in the results of a query in the appropriate format (EUROPEAN, GERMAN). I've tried to set DATESTYLE and it works as far as PgSQL is concerned. Unfortunately, though, this confuses the date parsing of the O/R-Mapper I'm using[*]. Is there a way to set the date style/format on a per column basis for the result returned by a SELECT statement? Michael [*] Rails/ActiveRecord. The problem actually lies still deeper in Ruby's parsedate standard lib method. -- Michael Schuerig Thinking is trying to make up mailto:michael@schuerig.de for a gap in one's education. http://www.schuerig.de/michael/ --Gilbert Ryle
On Wed, Sep 14, 2005 at 02:12:34AM +0200, Michael Schuerig wrote: > > I'd like to get date columns in the results of a query in the > appropriate format (EUROPEAN, GERMAN). I've tried to set DATESTYLE and > it works as far as PgSQL is concerned. Unfortunately, though, this > confuses the date parsing of the O/R-Mapper I'm using[*]. Is there a way > to set the date style/format on a per column basis for the result > returned by a SELECT statement? You could SET datestyle just before issuing the query (so it's not a per-column answer, but per-query), or use the to_char() function instead of using the default output. -- Alvaro Herrera -- Valdivia, Chile Architect, www.EnterpriseDB.com "Aprende a avergonzarte más ante ti que ante los demás" (Demócrito)
On Wednesday 14 September 2005 02:32, Alvaro Herrera wrote: > On Wed, Sep 14, 2005 at 02:12:34AM +0200, Michael Schuerig wrote: > > I'd like to get date columns in the results of a query in the > > appropriate format (EUROPEAN, GERMAN). I've tried to set DATESTYLE > > and it works as far as PgSQL is concerned. Unfortunately, though, > > this confuses the date parsing of the O/R-Mapper I'm using[*]. Is > > there a way to set the date style/format on a per column basis for > > the result returned by a SELECT statement? > > You could SET datestyle just before issuing the query (so it's not a > per-column answer, but per-query), or use the to_char() function > instead of using the default output. I had considered that, but I received a better suggestion by private mail: Select to_char(date_column, 'dd/mm/yyyy') as date_column Thanks to all who responded. Michael -- Michael Schuerig Face reality and stare it down mailto:michael@schuerig.de --Jethro Tull, Silver River Turning http://www.schuerig.de/michael/