Re: pg_upgrade fails saying function unaccent(text) doesn't exist

Thank you! That got the pg_upgrade to completion. But then during
./analyze_new_cluster.sh vacuum fails thus:

vacuumdb: processing database "dm_test": Generating minimal optimizer
statistics (1 target)
vacuumdb: vacuuming of database "dm_test" failed: ERROR: text search
dictionary "unaccent" does not exist
CONTEXT: SQL function "semantic_normalize" statement 1

And yet a text search dictionary with that name does exist:

$ psql -d dm_test -c '\dFd+ unaccent'
List of text search dictionaries
Schema | Name | Template | Init options | Description
--------+----------+-----------------+--------------------+-------------
public | unaccent | public.unaccent | rules = 'unaccent' |
(1 row)

Running VACUUM ANALYZE semantic_mapping in psql works:

$ psql -d dm_test -c 'VACUUM ANALYZE semantic_mapping'
VACUUM
Time: 1231,767 ms (00:01,232)

But running it with the vacuumdb command doesn't:

vacuumdb -z -t semantic_mapping dm_test
vacuumdb: vacuuming database "dm_test"
vacuumdb: vacuuming of table "semantic_mapping" in database "dm_test"
failed: ERROR: text search dictionary "unaccent" does not exist
CONTEXT: SQL function "semantic_normalize" statement 1

This is presumably a similar search path problem, because I can reproduce
this in psql by setting the search path to exclude public:

set search_path to "$user";
vacuum analyze public.semantic_mapping;
ERROR: text search dictionary "unaccent" does not exist
CONTEXT: SQL function "semantic_normalize" statement 1
Time: 851,562 ms

Can't find a place to poke the "public." prefix in to work around this ...
I can't even see where it's getting the link to the text search dictionary
from. Is that in native code in the unaccent extension?

The unaccent definition looks like this:

\df+ public.unaccent

List of functions
Schema | Name | Result data type | Argument data types | Type |
Volatility | Parallel | Owner | Security | Access privileges | Language |
Source code | Description
--------+----------+------------------+---------------------+--------+------------+----------+-------+----------+-------------------+----------+---------------+-------------
public | unaccent | text | regdictionary, text | normal |
stable | safe | gthb | invoker | | c |
unaccent_dict |
public | unaccent | text | text | normal |
stable | safe | gthb | invoker | | c |
unaccent_dict |
(2 rows)

Any tips?

Cheers,
Gulli

On Wed, Aug 29, 2018 at 7:06 PM Bruce Momjian <bruce(at)momjian(dot)us> wrote:

> On Wed, Aug 29, 2018 at 06:09:53PM +0000, Gunnlaugur Thor Briem wrote:
> > Hi,
> >
> > I'm trying to upgrade an old PG 9.4 cluster to PG 10, and it's failing on
> > creating an index that uses the unaccent(text) function.
> >
> > That function is part of the unaccent extension, which is installed in
> the old
> > DB cluster. I expect pg_upgrade to create that extension as part of the
> > upgrade. It does create other extensions that are installed in the old DB
> > cluster. I don't get why this one isn't included.
>
> This is caused by security changes made in PG 10.3 and other minor
> releases. Please see this thread for an outline of the issue:
>
>
> https://www.postgresql.org/message-id/flat/152106914669.1223.5104148605998271987%40wrigleys.postgresql.org
>
> I think you have to change your index function to specify the schema
> name before the unacces function call, e.g.
>
> SELECT lower(public.unaccent(btrim(regexp_replace(
>
> --
> Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
> EnterpriseDB http://enterprisedb.com
>
> + As you are, so once was I. As I am, so you will be. +
> + Ancient Roman grave inscription +
>