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

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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@xxxxxxxxxx> 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@xxxxxxxxxx>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

+ As you are, so once was I.  As I am, so you will be. +
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