Re: BUG #17456: pg_dump creates dump that does not fully respect operator schema location

The following bug has been logged on the website:

Bug reference:      17456
Logged by:          Andrew Grossman
Email address:      agrossman@gmail.com
PostgreSQL version: 14.2
Operating system:   MacOS 12.3
Description:       

I have a case where an AFTER ROW trigger has a condition comparing two ltree
fields. The ltree extension is installed in a different schema than the
triggered table is. Upon restoration, the following error is encountered:

psql:/tmp/bugreport.sql:93: ERROR:  42883: operator does not exist:
util.ltree = util.ltree
LINE 1: ...N my_schema.my_table FOR EACH ROW WHEN ((new.path IS DISTINC...
                                                             ^
HINT:  No operator matches the given name and argument types. You might need
to add explicit type casts.
LOCATION:  op_error, parse_oper.c:731

The following sql will reproduce this case:

SET SEARCH_PATH=my_schema,util;

    FOR EACH ROW WHEN ((new.path IS DISTINCT FROM old.path))