Gregory Stark <[EMAIL PROTECTED]> writes:
> "Tom Lane" <[EMAIL PROTECTED]> writes:
>> Uh, no.  Function names for example are subject to search-path
>> confusion.

> Wait, are they? They are in PL languages but only because most
> languages store their source code as text just as is happening here.

Hmmm ... if you look at the current solution for default expressions
for serial columns, ie nextval() on a regclass constant, it's pretty
schema-safe.  So we could imagine inventing a regconfig datatype that
is the same sort of wrapper-over-OID.  Then make the 2-parameter form
of to_tsvector take that type instead of text.

That seems like it'd fix the problem for expression indexes on
to_tsvector calls, but I don't see how it fixes the problem for
triggers.  We don't have any clear path for making trigger arguments
be anything but a list of strings.

                        regards, tom lane

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