"Feld, Michael (IMS)" <fe...@imsweb.com> writes:
> I am attempting to upgrade my organization's database cluster from
> 9.1.19 to 9.5.1 using the pg_upgrade utility.
That's kind of a big jump :-( ... you missed the versions where =>
was deprecated as an operator name.
> I tried dropping the operator before doing the upgrade but it's dependent on
> the existence of the hstore extension. Ideas?
The clean solution would be to copy share/extension/hstore--1.0--1.1.sql
from the 9.5 installation into the 9.1 installation and then do
ALTER EXTENSION hstore UPDATE TO '1.1';
Under the hood that's just doing
ALTER EXTENSION hstore DROP OPERATOR => (text, text);
DROP OPERATOR => (text, text);
but if you did that manually, you'd have a problem when you want to update
hstore to current versions later. If you do what I suggest, the extension
will properly look like it's 1.1 after pg_upgrade'ing.
regards, tom lane
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