On Jun 3, 2005, at 8:52 PM, Markus Bertheau ☭ wrote:

And I can't call it with a TEXT variable, because casting from TEXT to
BOOLEAN isn't possible.


I'd be surprised if there weren't a some way to coerce the cast from text to boolean, but you might want to just make a simple convenience function in the interim:

test=# create or replace function text2bool (text)
    returns boolean language sql as $$
select case
    when lower($1) = 'true'
        then true
    else false
    end;
    $$;
CREATE FUNCTION

test=# select text2bool('true');
text2bool
-----------
t
(1 row)

test=# select text2bool('false');
text2bool
-----------
f
(1 row)


Just an idea.

Michael Glaesemann
grzm myrealbox com


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