Docs: add an explicit example about controlling overall greediness of REs.
Per discussion of bug #13538.
Branch
------
REL9_4_STABLE
Details
-------
http://git.postgresql.org/pg/commitdiff/aa9f8cb131a91df16db69fd271f81e761db29625
Modified Files
--------------
doc/src/sgml/func.sgml | 29 ++++++++++++++++++++++++++++-
1 file changed, 28 insertions(+), 1 deletion(-)