Re: proposal: tsearch dictionary initialization hook

Robert Haas <robertmhaas@gmail.com>

From: Robert Haas <robertmhaas@gmail.com>
To: Pavel Stehule <pavel.stehule@gmail.com>
Cc: Teodor Sigaev <teodor@sigaev.ru>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>, Oleg Bartunov <oleg@sai.msu.su>, Tom Lane <tgl@sss.pgh.pa.us>
Date: 2010-09-28T03:17:52Z
Lists: pgsql-hackers
On Tue, Sep 7, 2010 at 12:55 PM, Pavel Stehule <pavel.stehule@gmail.com> wrote:
> 2010/9/7 Teodor Sigaev <teodor@sigaev.ru>:
>> Hm, what is aim of this hook? It looks like a wrapper of dictionary init
>> method.
>
> If I use a mmap for shared dictionary, then I have to prealloc and
> maybe preread dictionary - it can be done in external module. But I
> have to join preloaded dictionary to requested dictionary. This hook
> allows this relation - and it's general - I don't need any special
> support in ispell dictionary.

Review:

1. Is this really necessary?  It seems that you're inserting a hook
here when you could just as well change tmplinit to point to whatever
function you want to call, which wouldn't require a code change.

2. Our standard criteria for the inclusion of a hook is some sample
code that demonstrates how it can be usefully used.  I think you need
to provide that before we can consider this further.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
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