| From: | Alvaro Herrera <alvherre(at)dcc(dot)uchile(dot)cl> |
|---|---|
| To: | Jenny - <nat_lazy(at)hotmail(dot)com> |
| Cc: | tgl(at)sss(dot)pgh(dot)pa(dot)us, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: row level lock and table level locks |
| Date: | 2003-09-08 18:07:34 |
| Message-ID: | 20030908180734.GA15127@dcc.uchile.cl |
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| Thread: | |
| Lists: | pgsql-hackers |
On Mon, Sep 08, 2003 at 10:17:46AM -0700, Jenny - wrote:
> >TupleTables are just temporary data structures to hold transiently
> >created tuples during execution of a query. There's usually one for
> >each plan node.
> whats a 'plan node'?
Have you tried reading the documentation, source code and the slides of
Tom and Bruce's presentations? They all are very valuable resources. I
believe there's a good set of slides by Bruce in
http://developer.postgresql.org that explain these things in a general
manner. Armed with that you can try to read the source code.
--
Alvaro Herrera (<alvherre[a]dcc.uchile.cl>)
"I dream about dreams about dreams", sang the nightingale
under the pale moon (Sandman)
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