pgsql: Clarify that pg_stat_activity.query has a length limit.

Clarify that pg_stat_activity.query has a length limit.

There was always documentation of the GUC that controlled what the
limit actually was, but previously the documentation of the field
itself made no mention of that limit.

Ian Barwick

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/e63d41498837667a4e2e0a4b9416bfda28c722d6

Modified Files
--------------
doc/src/sgml/monitoring.sgml | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)