.\" This is -*-nroff-*-
.\" XXX standard disclaimer belongs here....
-.\" $Header: /cvsroot/pgsql/src/man/Attic/set.l,v 1.3 1997/06/02 14:12:40 momjian Exp $
+.\" $Header: /cvsroot/pgsql/src/man/Attic/set.l,v 1.4 1997/06/03 04:14:31 vadim Exp $
.TH SET SQL 05/14/97 PostgreSQL PostgreSQL
.SH NAME
set \(em set run-time parameters for session
on=10 - use for statements with 10 or more tables
off - do not use the genetic optimizer
.fi
-The default is on.
.PP
.IR R_PLANS
-enables or disables right-hand evaluation of plans. This algorithm is
+enables or disables right-hand evaluation of plans. It may be useful
+when joining big relations with small ones. This algorithm is
.IR off
-by default.
+by default. It's not used by GEQO anyway.
.if n .ta 5 +15 +40
.if t .ta 0.5i +1.5i +3.0i
.in 0
.nf
-R_PLANS
+.ce 1
+\fBR_PLANS Values\fR
+
on - turn right-hand plan evaluation 'on'
off - do not use right-hand plan evaluation
.fi
--
--Use GEQO for statements with 4 or more tables
--
-set GEQO to on=4
+set GEQO to 'on=4'
--
--Turn off the genetic optimizer
--