-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi,

I want to change a column from text to bytea; since it seems that alter
table can't change the column type, i have to add a temporary column and
copy the data from the old one to the new, delete the old and rename the
new.


But it seems that Postgres can't cast text to bytea:

 > UPDATE forum_gtree SET gid2=gid::bytea;
 ERROR:  Cannot cast type text to bytea


How can I do this?

encode/decode seems to handle only bytea data:

  http://www.postgresql.org/docs/current/interactive/functions-string.html


Thanks && Ciao
  Alvar

- -- 
** Alvar C.H. Freude -- http://alvar.a-blast.org/
**   Berufsverbot? http://odem.org/aktuelles/staatsanwalt.de.html
**   ODEM.org-Tour: http://tour.odem.org/
**   Informationsgesellschaft: http://www.wsis-koordinierungskreis.de/

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.3 (FreeBSD)

iD8DBQE/zRsgOndlH63J86wRAn4aAJ0aY9Td3YcWwkIwdALInCXaruINcgCgoDtx
FQmuBKPACLfE5YAmMTdCN4g=
=OivL
-----END PGP SIGNATURE-----


---------------------------(end of broadcast)---------------------------
TIP 8: explain analyze is your friend

Reply via email to