Horton

Re: [PATCH] Log crashed backend's query v2

Florian G. Pflug <fgp@phlo.org>

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From: Florian Pflug <fgp@phlo.org>
To: Marti Raudsepp <marti@juffo.org>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>, Jeff Janes <jeff.janes@gmail.com>, Alvaro Herrera <alvherre@commandprompt.com>, Tom Lane <tgl@sss.pgh.pa.us>, Robert Haas <robertmhaas@gmail.com>
Date: 2011-09-27T23:05:51Z
Lists: pgsql-hackers 
On Sep28, 2011, at 00:19 , Marti Raudsepp wrote:
> (I'm still not sure what "adt" means)

I always assumed it stood for "abstract data type". Most of the files in this directory seem to correspond to an SQL-level data type like intX, varchar, tsquery, ..., and contain the I/O functions for that type, plus some supporting operations and functions.

Over time, it seems that this directory was also used for SQL-level functions not directly related to a single type, like windowfuncs.c and pgstatfuncs.c. The fact that ri_triggers.c lives there also might be a relict from times where you'd create FK constraint with CREATE CONSTRAINT TRIGGER and specified one of the functions from ri_triggers.c as the procedure to execute.

best regards,
Florian Pflug