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Add a "SQLSTATE-only" error verbosity option to libpq and psql.

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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
This commit is contained in:
Tom Lane
2019-04-04 17:22:02 -04:00
parent 413ccaa74d
commit 7bac3acab4
9 changed files with 98 additions and 25 deletions
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4
src/bin/psql/help.c
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@ -340,7 +340,7 @@ helpVariables(unsigned short int pager)
* Windows builds currently print one more line than non-Windows builds.
* Using the larger number is fine.
*/
output = PageOutput(156, pager ? &(pset.popt.topt) : NULL);
output = PageOutput(158, pager ? &(pset.popt.topt) : NULL);
fprintf(output, _("List of specially treated variables\n\n"));
@ -414,7 +414,7 @@ helpVariables(unsigned short int pager)
fprintf(output, _(" USER\n"
" the currently connected database user\n"));
fprintf(output, _(" VERBOSITY\n"
" controls verbosity of error reports [default, verbose, terse]\n"));
" controls verbosity of error reports [default, verbose, terse, sqlstate]\n"));
fprintf(output, _(" VERSION\n"
" VERSION_NAME\n"
" VERSION_NUM\n"