Re: Table A-1. PostgreSQL Error Codes (WITH constants)

> What exactly is the point of the change at all?

Take a typical line in the table:

Error Code | Meaning
23502 | NOT NULL VIOLATION

Now assume I want to catch this exception in a plpgsql function:

CREATE OR REPLACE FUNCTION foo()
/* boilerplate omitted */

EXCEPTION
WHEN NOT_NULL_VIOLATION THEN
RAISE WARNING 'Crikey!';
WHEN OTHERS THEN
RAISE NOTICE 'Oh well, [%,%]', SQLSTATE, SQLERRM;

Making the "Meaning" column almost-usable as the exception name is
frustrating. This patch would allow people writing functions to copy and
paste the exception names directly.

It's not a big deal, but it would save some re-typing for people writing a
lot of functions (me, for example).

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