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Clean up grammar a bit

author Peter Eisentraut <peter@eisentraut.org>

2020年6月29日 08:36:52 +0000 (10:36 +0200)

committer Peter Eisentraut <peter@eisentraut.org>

2020年6月29日 09:05:00 +0000 (11:05 +0200)

commit aafefb4dcbf79e8cb1439e888a9cdb3dfefa7657

tree 5189266e65b962056da6527ef34fd9982c350273 tree

parent 68de1440c79d75e529ff8c7395d698252370f992 commit | diff

Clean up grammar a bit

Simplify the grammar specification of substring() and overlay() a bit,
simplify and update some comments.

Reviewed-by: Pavel Stehule <pavel.stehule@gmail.com>
Reviewed-by: Vik Fearing <vik@postgresfriends.org>
Reviewed-by: Fabien COELHO <coelho@cri.ensmp.fr>
Discussion: https://www.postgresql.org/message-id/flat/a15db31c-d0f8-8ce0-9039-578a31758adb%402ndquadrant.com

src/backend/parser/gram.y diff | blob | blame | history

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