On 2015-03-19 23:31:21 +0900, Tatsuo Ishii wrote: > > That SQLSTATE value is intended to be used where the transaction > > has failed because it was run concurrently with some other > > transaction, rather than before or after it; and it is intended to > > suggest that the transaction may succeed if run after the competing > > transaction has completed. If those apply, it seems like the right > > SQLSTATE. A user can certainly distinguish between the conditions > > by looking at the error messages. > > It is sad for users the only way to distinguish the conditions is by > looking at the error messages. They want to know the root of the > problem.
Sure. It's always a balance. If you go to the extreme of your argument every possible error gets one individual error code. But then error handling gets too complex. Greetings, Andres Freund -- Andres Freund http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers