| From: | Florian Pflug <fgp(at)phlo(dot)org> |
|---|---|
| To: | Marti Raudsepp <marti(at)juffo(dot)org> |
| Cc: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)commandprompt(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Robert Haas <robertmhaas(at)gmail(dot)com> |
| Subject: | Re: [PATCH] Log crashed backend's query v2 |
| Date: | 2011-09-27 23:05:51 |
| Message-ID: | DA1F08F4-5A1F-4BD4-9120-49C52786A572@phlo.org |
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| 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
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