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Date: Wed, 16 Oct 2019 08:58:11 +0300
From: Konstantin Osipov <kostja.osipov@gmail.com>
Message-ID: <20191016055811.GC16587@atlas>
References: <cover.1571068485.git.kshcherbatov@tarantool.org>
 <20191015213405.GB898@tarantool.org> <20191016055725.GB16587@atlas>
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Subject: Re: [Tarantool-patches] [tarantool-patches] [PATCH v1 0/9] schema:
	rework _trigger space
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To: Nikita Pettik <korablev@tarantool.org>, tarantool-patches@freelists.org, tarantool-patches@dev.tarantool.org, Kirill Shcherbatov <kshcherbatov@tarantool.org>

* Konstantin Osipov <kostja.osipov@gmail.com> [19/10/16 08:57]:
> * Nikita Pettik <korablev@tarantool.org> [19/10/16 08:45]:
> > Personally I've already said (see [dev] [rfc] Persistent triggers in Tarantool
> > thread) that I do not support idea of storing both Lua and SQL trigger's
> > metadata in one space.
> 
> Well, we can not reach the point not only because we have
> different opinions, but because the discussion is so slow.
> 
> The reason to store all persistent objects of the same type in the
> same space is that Tarantool is designed as a multiple frontend
> system. I.e. tomorrow there may be another front end, not just Lua
> or SQL, and one doesn't want to have a separate table for each
> front end.
> 
> If the trigger timing, action type, definer, setuid and other
> semantics is the same, and only the language is different, then 
> why duplicate the space? Whenever we add a new property common to
> all triggers (e.g. persist enabled/disabled), we'll have to do
> extra work.

Having said that, I should note that I mentioned earlier that I
don't think this feature is a high priority work.


-- 
Konstantin Osipov, Moscow, Russia