| From: | Karel Zak - Zakkr <zakkr(at)zf(dot)jcu(dot)cz> |
|---|---|
| To: | Don Baccus <dhogaza(at)pacifier(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers <pgsql-hackers(at)postgreSQL(dot)org> |
| Subject: | Re: [HACKERS] Cache query (PREPARE/EXECUTE) |
| Date: | 2000-02-22 20:18:47 |
| Message-ID: | Pine.LNX.3.96.1000222211018.704A-100000@ara.zf.jcu.cz |
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| Lists: | pgsql-hackers |
On Tue, 22 Feb 2000, Don Baccus wrote:
> At 06:30 PM 2/22/00 +0100, Karel Zak - Zakkr wrote:
>
> > Yes, I agree (TopMemoryContext was simpl for first hacking).
> >But I not sure how create new (across transaction persistent?)
> >MemoryContext. It needs new portal? (Sorry I not thoroughly explore
> >PG's memory management.)
>
> Jan is caching the plans needed for referential integrity checking
> and referential actions - look at ri_triggers.c in src/backend/utils/adt.
> ri_InitHashTables initializes the RI cache.
My cache table routines for PREPARE = Jan's RI routines :-)
(I copy and a little modify Jan's code (*Thanks* Jan for good inspiration..).
But if I good look at Jan use SPI context for this, not any specific
context.
Karel
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