Improve wording of two error messages related to generated columns.
authorTom Lane <tgl@sss.pgh.pa.us>
Mon, 23 Nov 2020 16:15:03 +0000 (11:15 -0500)
committerTom Lane <tgl@sss.pgh.pa.us>
Mon, 23 Nov 2020 16:15:12 +0000 (11:15 -0500)
commitd36228a9fcdccd57a7dc332572eb9837c7c301e6
tree6810f6bcd51f6538bbe7b1b564cdb476651b2f20
parentfe051291550ab88267ce3104e9833925bf757393
Improve wording of two error messages related to generated columns.

Clarify that you can "insert" into a generated column as long as what
you're inserting is a DEFAULT placeholder.

Also, use ERRCODE_GENERATED_ALWAYS in place of ERRCODE_SYNTAX_ERROR;
there doesn't seem to be any reason to use the less specific errcode.

Discussion: https://postgr.es/m/9q0sgcr416t.fsf@gmx.us
src/backend/rewrite/rewriteHandler.c
src/test/regress/expected/generated.out
src/test/regress/expected/identity.out
src/test/regress/expected/updatable_views.out