Обсуждение: pgsql: doc: document the CREATE INDEX "USING" clause

doc:  document the CREATE INDEX "USING" clause

Somehow this was in the syntax but had no description.

Reported-by: robertcorrington@gmail.com

Discussion: https://postgr.es/m/164228771825.31954.2719791849363756957@wrigleys.postgresql.org

Backpatch-through: 10

Branch
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REL_12_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/ca82ad08fe1640509b1cc47b7bff3ef4ddc627fe

Modified Files
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doc/src/sgml/ref/create_index.sgml | 12 ++++++++++++
1 file changed, 12 insertions(+)