Re: row level lock and table level locks - Mailing list pgsql-hackers

From Jenny -
Subject Re: row level lock and table level locks
Date
Msg-id BAY1-F40no3gIpgYG2N0000a3f6@hotmail.com
Whole thread Raw
In response to row level lock and table level locks  (Larry Douzie <cs4482003@yahoo.com>)
Responses Re: row level lock and table level locks
List pgsql-hackers
>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'?

>From: Tom Lane <tgl@sss.pgh.pa.us>
>To: "Jenny -" <nat_lazy@hotmail.com>
>CC: pgsql-hackers@postgresql.org
>Subject: Re: [HACKERS] row level lock and table level locks Date: Mon, 08 
>Sep 2003 12:49:51 -0400
>
>"Jenny -" <nat_lazy@hotmail.com> writes:
> > I found out that TupleTable stores per-tuple information(it stores
> > HeapTupleData) and that also there are multiple TupleTables in the db at 
>a
> > time.Based on what are diffrent TupleTables created?
>
>TupleTables are just temporary data structures to hold transiently
>created tuples during execution of a query.  There's usually one for
>each plan node.
>
>            regards, tom lane
>
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