Gabriel Fernandez <gabi(at)unica(dot)edu> writes:
> After having some problems with our database server (in the hardware not
> with postgres), when we execute '\d my_table' from psql it displays:
> ERROR: No such function 'format_type' with the specified attributes
Sounds to me like you are using a psql that is newer than your server.
Considerably newer, in fact, since format_type was added in 7.1 but
that error message hasn't been spelled that way since 6.5.
regards, tom lane