Обсуждение: pgsql: Docs: add an explicit example about controlling overall greedine

Docs: add an explicit example about controlling overall greediness of REs.

Per discussion of bug #13538.

Branch
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REL9_5_STABLE

Details
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http://git.postgresql.org/pg/commitdiff/5c499d5cd2da2fd67f1b234a2994dd940f28fbc2

Modified Files
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doc/src/sgml/func.sgml |   29 ++++++++++++++++++++++++++++-
1 file changed, 28 insertions(+), 1 deletion(-)