Обсуждение: pgsql: Document that contrib/pgtrgm only processes ASCII alphanumeric

Document that contrib/pgtrgm only processes ASCII alphanumeric
characters.

Backpatch to 9.0 and 9.1.

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/d235f828d74daaabdeb97efa4499cfb30ee65d09

Modified Files
--------------
doc/src/sgml/pgtrgm.sgml |    3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)