Re: problem with bit(n) type

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От TJ O'Donnell
Тема Re: problem with bit(n) type
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Msg-id 434D0DCB.3010808@acm.org
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Ответ на problem with bit(n) type  (Sergey Karin <sergey.karin@gmail.com>)
Список pgsql-general
Binary data in bit(n) has no text equivalent, and so cannot be "cast" as text.
It has an "external representation", e.g. B'10010101', but this is not
the same as a cast.  In some cases, where there bit(n) has (n mod 8) = 0
and the bitstring happens to be valid ascii in the text range, one could
say there is a text equivalent, but in general not.

I think you're looking for some kind of printf-type %b function?  Maybe
someone has written one, or maybe you'll have to do so.  If you do,
how about a hex representation of bit(n) - I could use that ;)

TJ O'Donnell
http://www.gnova.com/
-----

But this is the big problem for me... Is there a way to cast bit(n) to
text or varchar?

thanks in advance.

Sergey Karin

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