Le 1/07/2010 16:48, Sam Mason a écrit :
On Tue, Jun 29, 2010 at 04:52:22PM +0200, Arnaud Lesauvage wrote:
We have a database in UTF8, from which we have to export text files in
LATIN9 encoding (or WIN1252, which is almostthe same I believe).
Records are entered via MSAccess forms (on psqlodbc-linked tables).
The problem is that some of the characters input by the users have no
equivalent in LATIN9.
How could I easily write a CONSTRAINT (or RULE) that would check that
everything entered in the fields have an equivalent in my specific
destination encoding ?
How about using the built in character conversion routines. Something
like:
col = convert_from(convert_to(col, 'LATIN9'),'LATIN9')
as the check constraint, or its inverse as the where clause for the
erroneous rows?
What happens then for a character that does not have an equivalent in
LATIN9 ?
If an error is raised in the check constraint, does it look like a
normal check error ?
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