2009/7/1 "Stéphane A. Schildknecht" <stephane.schildknecht@postgresqlfr.org>:
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> Hi,
>
> Is there a way to define some implicit casts so that only one specific database
> user can use them, and they're not visible to others?
no - it's not possible - maybe with some very ugly hacks - you need to
hack cache.
regards
Pavel Stehule
>
> I'm facing the case where to have same behaviour as in 8.2 for this
> "Non-character data types are no longer automatically cast to TEXT" 8.3
> improvements, I used implicit casts proposed here:
>
> http://wiki.postgresql.org/images/d/d1/Pg83-implicit-casts.sql
>
> Problem yet is I can't use slony any more to replicate data, as it falls in
> error with this kind of messages:
>
> Jul 1 17:23:20 jck20 slon[6671]: [62-1] 2009-07-01 17:23:20 CEST FATAL
> cleanupThread: "select "_gvr".cleanupEvent('10 minutes'::interval,
> 'false'::boolean); " - ERROR:
> Jul 1 17:23:20 jck20 slon[6671]: [62-2] operator is not unique: unknown ||
> integer
> Jul 1 17:23:20 jck20 slon[6671]: [62-3] LINE 1: SELECT 'PartInd_gvr_sl_log_'
> || $1 || '-node-' || $2
> Jul 1 17:23:20 jck20 slon[6671]: [62-4] ^
> Jul 1 17:23:20 jck20 slon[6671]: [62-5] HINT: Could not choose a best
> candidate operator. You might need to add explicit type casts.
> Jul 1 17:23:20 jck20 slon[6671]: [62-6] QUERY: SELECT 'PartInd_gvr_sl_log_'
> || $1 || '-node-' || $2
> Jul 1 17:23:20 jck20 slon[6671]: [62-7] CONTEXT: PL/pgSQL function
> "addpartiallogindices" line 28 at assignment
> Jul 1 17:23:20 jck20 slon[6671]: [62-8] SQL statement "SELECT
> "_gvr".addPartialLogIndices()"
> Jul 1 17:23:20 jck20 slon[6671]: [62-9] PL/pgSQL function "logswitch_finish"
> line 99 at PERFORM
>
> I'm quit disappointed, as if I let slony replicate the application, still in a
> process of migration to 8.3 correct behaviour can't be used, on the other hand
> if I add implicit casts to allow application to work, I can't replicate with slony.
>
> Thanks in advance for any help.
>
> Regards,
> - --
> Stéphane Schildknecht
> PostgreSQLFr - http://www.postgresql.fr
>
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