Re: [BUG?] pg_event_trigger_ddl_commands() error with ALTER TEXT SEARCH CONFIGURATION

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: Artur Zakirov <a(dot)zakirov(at)postgrespro(dot)ru>
Cc: PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [BUG?] pg_event_trigger_ddl_commands() error with ALTER TEXT SEARCH CONFIGURATION
Date: 2016-11-17 21:17:54
Message-ID: 20161117211754.6zdetsqtrmt552bz@alvherre.pgsql
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Artur Zakirov wrote:
> Hello hackers,
>
> I attached the test extension. It just creates event trigger on
> ddl_command_end. And pg_catalog.pg_event_trigger_ddl_commands() is executed
> from extension's C-function handler.
>
> The pg_event_trigger_ddl_commands() returns the error:
>
> ERROR: unrecognized object class: 3603
>
> if I try to execute the following commands:
>
> => create text search CONFIGURATION en (copy=english);
>
> => alter text search CONFIGURATION en ALTER MAPPING for host, email, url,
> sfloat with simple;
> ERROR: unrecognized object class: 3603
> CONTEXT: SQL statement "SELECT objid, UPPER(object_type), object_identity,
> UPPER(command_tag)
> FROM pg_catalog.pg_event_trigger_ddl_commands()"
>
> This error is raised from getObjectClass() function. It seems that we need
> new OCLASS_TSCONFIG_MAP object class.
>
> Is this a bug? Or it wasn't added intentionally?

It's a bug. You're right that we need to handle the object class
somewhere. Perhaps I failed to realize that tsconfigs could get
altered.

--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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