Обсуждение: pgsql: doc: clarify the useful features of procedures

doc:  clarify the useful features of procedures

This was not clearly documented when procedures were added in PG 11.

Reported-by: Robin Abbi

Discussion: https://postgr.es/m/CAGmg_NX327KKVuJmbWZD=pGutYFxzZjX1rU+3ji8UuX=8ONn9Q@mail.gmail.com

Backpatch-through: 11

Branch
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REL_12_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/5277f493dde7de00250d33a8ea79a5b93ee89dae

Modified Files
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doc/src/sgml/xfunc.sgml | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)