| From: | Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | Andrew Dunstan <andrew(at)dunslane(dot)net>, Magnus Hagander <magnus(at)hagander(dot)net>, Jan de Visser <jan(at)de-visser(dot)net>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Hao Lee <mixtrue(at)gmail(dot)com>, Amit Langote <amitlangote09(at)gmail(dot)com>, PostgreSQL mailing lists <pgsql-hackers(at)postgresql(dot)org>, Robert Haas <robertmhaas(at)gmail(dot)com> |
| Subject: | Re: Do we need use more meaningful variables to replace 0 in catalog head files? |
| Date: | 2016-12-09 14:12:21 |
| Message-ID: | 4fa162b0-640f-3fdf-7ec3-889159bfb300@2ndquadrant.com |
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| Lists: | pgsql-hackers |
On 11/13/16 12:19 PM, Tom Lane wrote:
>> It'd also be very pg_proc specific, which isn't where I think this
>> should go..
>
> The presumption is that we have a CREATE command for every type of
> object that we need to put into the system catalogs. But yes, the
> other problem with this approach is that you need to do a lot more
> work per-catalog to build the converter script. I'm not sure how
> much of that could be imported from gram.y, but I'm afraid the
> answer would be "not enough".
I'd think about converting about 75% of what is currently in the catalog
headers into some sort of built-in extension that is loaded via an SQL
script. There are surely some details about that that would need to be
worked out, but I think that's a more sensible direction than inventing
another custom format.
I wonder how big the essential bootstrap set of pg_proc.h would be and
how manageable the file would be if it were to be reduced like that.
--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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