Re: some grammar refactoring

On Tue, May 19, 2020 at 12:13 PM Peter Eisentraut <
peter(dot)eisentraut(at)2ndquadrant(dot)com> wrote:

> Here is a series of patches to do some refactoring in the grammar around
> the commands COMMENT, DROP, SECURITY LABEL, and ALTER EXTENSION ...
> ADD/DROP. In the grammar, these commands (with some exceptions)
> basically just take a reference to an object and later look it up in C
> code. Some of that was already generalized individually for each
> command (drop_type_any_name, drop_type_name, etc.). This patch combines
> it into common lists for all these commands.
>
> Advantages:
>
> - Avoids having to list each object type at least four times.
>
> - Object types not supported by security labels or extensions are now
> explicitly listed and give a proper error message. Previously, this was
> just encoded in the grammar itself and specifying a non-supported object
> type would just give a parse error.
>
> - Reduces lines of code in gram.y.
>
> - Removes some old cruft.
>
>
I liked the idea.

I had quick glance through the patches and also did quick review and
testing.
I haven't found any issue with the patch.

--
> Peter Eisentraut http://www.2ndQuadrant.com/
> PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
>

--
Rushabh Lathia