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Add a "SQLSTATE-only" error verbosity option to libpq and psql.
This is intended for use mostly in test scripts for external tools, which could do without cross-PG-version variations in error message wording. Of course, the SQLSTATE isn't guaranteed stable either, but it should be more so than the error message text. Note: there's a bit of an ABI change for libpq here, but it seems OK because if somebody compiles against a newer version of libpq-fe.h, and then tries to pass PQERRORS_SQLSTATE to PQsetErrorVerbosity() of an older libpq library, it will be accepted and then act like PQERRORS_DEFAULT, thanks to the way the tests in pqBuildErrorMessage3 have historically been phrased. That seems acceptable. Didier Gautheron, reviewed by Dagfinn Ilmari Mannsåker Discussion: https://postgr.es/m/CAJRYxuKyj4zA+JGVrtx8OWAuBfE-_wN4sUMK4H49EuPed=mOBw@mail.gmail.com
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@ -4491,6 +4491,26 @@ number of rows: 0
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last error message: table "this_table_does_not_exist" does not exist
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\echo 'last error code:' :LAST_ERROR_SQLSTATE
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last error code: 42P01
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-- nondefault verbosity error settings (except verbose, which is too unstable)
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\set VERBOSITY terse
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SELECT 1 UNION;
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ERROR: syntax error at or near ";" at character 15
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\echo 'error:' :ERROR
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error: true
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\echo 'error code:' :SQLSTATE
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error code: 42601
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\echo 'last error message:' :LAST_ERROR_MESSAGE
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last error message: syntax error at or near ";"
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\set VERBOSITY sqlstate
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SELECT 1/0;
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ERROR: 22012
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\echo 'error:' :ERROR
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error: true
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\echo 'error code:' :SQLSTATE
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error code: 22012
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\echo 'last error message:' :LAST_ERROR_MESSAGE
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last error message: division by zero
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\set VERBOSITY default
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-- working \gdesc
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SELECT 3 AS three, 4 AS four \gdesc
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Column | Type
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@ -1001,6 +1001,21 @@ DROP TABLE this_table_does_not_exist;
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\echo 'last error message:' :LAST_ERROR_MESSAGE
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\echo 'last error code:' :LAST_ERROR_SQLSTATE
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-- nondefault verbosity error settings (except verbose, which is too unstable)
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\set VERBOSITY terse
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SELECT 1 UNION;
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\echo 'error:' :ERROR
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\echo 'error code:' :SQLSTATE
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\echo 'last error message:' :LAST_ERROR_MESSAGE
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\set VERBOSITY sqlstate
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SELECT 1/0;
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\echo 'error:' :ERROR
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\echo 'error code:' :SQLSTATE
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\echo 'last error message:' :LAST_ERROR_MESSAGE
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\set VERBOSITY default
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-- working \gdesc
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SELECT 3 AS three, 4 AS four \gdesc
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\echo 'error:' :ERROR
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