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Convert the reg* input functions to report (most) errors softly.

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This is not really complete, but it catches most cases of practical
interest.  The main omissions are:

* regtype, regprocedure, and regoperator parse type names by
calling the main grammar, so any grammar-detected syntax error
will still be a hard error.  Also, if one includes a type
modifier in such a type specification, errors detected by the
typmodin function will be hard errors.

* Lookup errors are handled just by passing missing_ok = true
to the relevant catalog lookup function.  Because we've used
quite a restrictive definition of "missing_ok", this means that
edge cases such as "the named schema exists, but you lack
USAGE permission on it" are still hard errors.

It would make sense to me to replace most/all missing_ok
parameters with an escontext parameter and then allow these
additional lookup failure cases to be trapped too.  But that's
a job for some other day.

Discussion: https://postgr.es/m/3342239.1671988406@sss.pgh.pa.us
This commit is contained in:
Tom Lane
2022-12-27 12:26:01 -05:00
parent 78212f2101
commit 858e776c84
16 changed files with 403 additions and 128 deletions
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2
src/backend/utils/adt/tsvector_op.c
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@ -2652,7 +2652,7 @@ tsvector_update_trigger(PG_FUNCTION_ARGS, bool config_column)
{
List *names;
names = stringToQualifiedNameList(trigger->tgargs[1]);
names = stringToQualifiedNameList(trigger->tgargs[1], NULL);
/* require a schema so that results are not search path dependent */
if (list_length(names) < 2)
ereport(ERROR,