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Add CREATE COLLATION IF NOT EXISTS clause

author Peter Eisentraut <peter_e@gmx.net>

Thu, 9 Feb 2017 03:51:09 +0000 (22:51 -0500)

committer Peter Eisentraut <peter_e@gmx.net>

2017年2月15日 15:01:28 +0000 (10:01 -0500)

commit 6d16ecc646d21b39092970c591fd0f73b4cfc26b

tree 39a31e88e1e82ae5a76eddf446d2c128dbf2b80b tree

parent e403732ef66d368f0a9a154d8f756f5d28615b8a commit | diff

Add CREATE COLLATION IF NOT EXISTS clause

The core of the functionality was already implemented when
pg_import_system_collations was added. This just exposes it as an
option in the SQL command.

doc/src/sgml/ref/create_collation.sgml diff | blob | blame | history

src/backend/commands/collationcmds.c diff | blob | blame | history

src/backend/nodes/copyfuncs.c diff | blob | blame | history

src/backend/nodes/equalfuncs.c diff | blob | blame | history

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

src/backend/tcop/utility.c diff | blob | blame | history

src/include/commands/collationcmds.h diff | blob | blame | history

src/include/nodes/parsenodes.h diff | blob | blame | history

src/test/regress/expected/collate.linux.utf8.out diff | blob | blame | history

src/test/regress/sql/collate.linux.utf8.sql diff | blob | blame | history

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