whats a 'plan node'?TupleTables are just temporary data structures to hold transiently created tuples during execution of a query. There's usually one for each plan node.
From: Tom Lane <[EMAIL PROTECTED]>
To: "Jenny -" <[EMAIL PROTECTED]>
CC: [EMAIL PROTECTED]
Subject: Re: [HACKERS] row level lock and table level locks Date: Mon, 08 Sep 2003 12:49:51 -0400
"Jenny -" <[EMAIL PROTECTED]> 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
---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster
_________________________________________________________________
Compare Cable, DSL or Satellite plans: As low as $29.95. https://broadband.msn.com
---------------------------(end of broadcast)--------------------------- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
