Excerpts from Robert Haas's message of mié ene 12 13:48:27 -0300 2011:
> I guess that begs the question of why we need to allow users to call
> type output functions directly.
It used to be the case that that was the only way to run certain casts.
For example, see the pre-8.2 version of this:
http://wiki.postgresql.org/wiki/Pg_depend_display
I haven't needed to use that in a long time, but I am not sure if the
need has completely disappeared.
--
Álvaro Herrera <alvherre@commandprompt.com>
The PostgreSQL Company - Command Prompt, Inc.
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