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Re: to_char with locale decimal separator

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On 07/30/2013 03:03 AM, Ingmar Brouns wrote:
On Mon, Jul 29, 2013 at 3:12 PM, Ingmar Brouns <swingi@xxxxxxxxx> wrote:



anyone? Giving a locale corresponding textual representation
of a numerical value keeping the exact nr of decimal digits
must be a fairly common use case. Would it be an idea to
implement a to_char function that does not take a formatting
pattern and has this behaviour?


Best I can do is a proof of concept in plpythonu for determining locale decimal point:

test=# SHOW lc_numeric ;
 lc_numeric
-------------
 en_US.UTF-8
(1 row)

test=# DO $$
    import locale
    rs = plpy.execute("SHOW lc_numeric")
    lc_n = rs[0]["lc_numeric"]
    locale.setlocale(locale.LC_NUMERIC, lc_n)
    d = locale.nl_langinfo(locale.RADIXCHAR)
    plpy.notice("Decimal point is " + d)
$$ LANGUAGE plpythonu;
NOTICE:  Decimal point is .
CONTEXT:  PL/Python anonymous code block
DO


test=# set lc_numeric = 'nl_NL.utf8';
SET
test=# DO $$
    import locale
    rs = plpy.execute("SHOW lc_numeric")
    lc_n = rs[0]["lc_numeric"]
    locale.setlocale(locale.LC_NUMERIC, lc_n)
    d = locale.nl_langinfo(locale.RADIXCHAR)
    plpy.notice("Decimal point is " + d)
$$ LANGUAGE plpythonu;
NOTICE:  Decimal point is ,
CONTEXT:  PL/Python anonymous code block
DO




I would like to have '1,500' as the output, what is the best way
to achieve this?

Thanks in advance,

Ingmar




--
Adrian Klaver
adrian.klaver@xxxxxxxxx


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