Clarify documentation about SQL:2008 variant of LIMIT/OFFSET syntax.

The point that you need parentheses for non-constant expressions apparently
needs to be brought out a bit more clearly, per bug #6315.

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/15a5006aac1432da35ff6a7ae27a018ed300e860

Modified Files
--------------
doc/src/sgml/ref/select.sgml |   21 ++++++++++++---------
1 files changed, 12 insertions(+), 9 deletions(-)

pgsql-committers by date

Next:	From: Tom Lane	Date: 2011-12-01 22:00:38
	Subject: pgsql: Stamp 9.1.2.
Previous:	From: Peter Eisentraut	Date: 2011-12-01 21:22:55
	Subject: pgsql: Translation updates