Обсуждение: pgsql: Clean up optional rules in grammar

Clean up optional rules in grammar

Various rules for optional keywords contained unnecessary rules and
type declarations.  Remove those, thus making the output a tiny bit
smaller.

Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi>
Discussion: https://www.postgresql.org/message-id/flat/e9eed669-e32d-6919-fed4-acc0daea857b%40enterprisedb.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/1b2b19f7584b7c0025aa40862cd38c79d340be7d

Modified Files
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src/backend/parser/gram.y | 80 +++++++++++++++++++++++------------------------
1 file changed, 40 insertions(+), 40 deletions(-)