Thread: pgsql: Add separate error message for procedure does not exist

Add separate error message for procedure does not exist

While we probably don't want to split up all error messages into
function and procedure variants, this one is a very prominent one, so
it's helpful to be more specific here.

Branch
------
REL_11_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/e8137295b3fe8a38a579b402512a4442bc992250

Modified Files
--------------
src/backend/parser/parse_func.c                | 35 ++++++++++++++++++++------
src/test/regress/expected/create_procedure.out |  4 +--
2 files changed, 29 insertions(+), 10 deletions(-)