Greg Stark schrieb:
On Tue, Jul 28, 2009 at 11:15 AM, Andreas
Wenk<a.w...@netzmeister-st-pauli.de> wrote:
Kevin Kempter schrieb:
Can I use a check constraint, or something other than a function to force
a column to be lowercase only?
Thx in advance
try to use regexp in your CHECK CONSTRAINT:
CHECK (column::bpchar ~ '^[a-z]+$'::bpchar::text)
Better would be CHECK (column = tolower(column)) which won't fail on
non-letters and will work in non-C locales
yes . but Kevin was asking for a way without a function. And by the way - it should read
lower instead of tolower ... or am I wrong?
Cheers
Andy
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