database/postgres
database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-05-06 19:59:18 +03:00
Code

Cleanups.

Browse Source
This commit is contained in:
Vadim B. Mikheev 1997-06-03 04:14:31 +00:00
parent 3fd9a62088
commit 2c7e2851d7
1 changed files with 8 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/man/set.l
View File

@ -1,6 +1,6 @@
.\" This is -*-nroff-*- .\" This is -*-nroff-*-
.\" XXX standard disclaimer belongs here.... .\" 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 .TH SET SQL 05/14/97 PostgreSQL PostgreSQL
.SH NAME .SH NAME
set \(em set run-time parameters for session set \(em set run-time parameters for session
@ -61,18 +61,20 @@ See the GEQO README for more information.
on=10 - use for statements with 10 or more tables on=10 - use for statements with 10 or more tables
off - do not use the genetic optimizer off - do not use the genetic optimizer
.fi .fi
The default is on.
.PP .PP
.IR R_PLANS .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 .IR off
by default. by default. It's not used by GEQO anyway.
.if n .ta 5 +15 +40 .if n .ta 5 +15 +40
.if t .ta 0.5i +1.5i +3.0i .if t .ta 0.5i +1.5i +3.0i
.in 0 .in 0
.nf .nf
R_PLANS .ce 1
\fBR_PLANS Values\fR
on - turn right-hand plan evaluation 'on' on - turn right-hand plan evaluation 'on'
off - do not use right-hand plan evaluation off - do not use right-hand plan evaluation
.fi .fi
@ -96,7 +98,7 @@ set DateStyle to 'SQL,European'
-- --
--Use GEQO for statements with 4 or more tables --Use GEQO for statements with 4 or more tables
-- --
set GEQO to on=4 set GEQO to 'on=4'
-- --
--Turn off the genetic optimizer --Turn off the genetic optimizer
-- --