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I have the following problem.

SELECT * FROM tgvbn();
ERROR:  function tgvbn() does not exist
LINE 1: SELECT * FROM tgvbn();
HINT:  No function matches the given name and argument types. You might need to add explicit type casts.

Since Appendix A of the official documentation only states error_codes and conditional names but not the actual messages, one can only guess that "No function matches..." refers to 42883 / undefined_function. I can set log_error_verbosity = verbose in postgresql.conf - but that will affect the logs, not the messages returned to the client:

Controls the amount of detail written in the server log for each message that is logged.

Well, I can consult the logs for this piece of information, but is there any means of including it in the error messages?

share|improve this question
This is more a psql problem than a "server configuration" problem. My SQL client does show the SQLSTATE in such a case. – a_horse_with_no_name Nov 16 '12 at 14:31
@a_horse_with_no_name Thanks, your comment directed me towards the solution. – dezso Nov 16 '12 at 15:05
up vote 7 down vote accepted

Based on a_horse_with_no_name's comment, I started searching around psql and found the solution:

\set VERBOSITY verbose
SELECT * FROM tgvbn();

ERROR:  42883: function vfjkb() does not exist

Now that goes into .psqlrc. Details and further options can be found in the psql documentation.

share|improve this answer
I quickly scanned through the manual after posting my comment, but I didn't see that one ;) Thanks for the update. – a_horse_with_no_name Nov 16 '12 at 15:16

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