Thread: pgsql: Unlogged sequences
Unlogged sequences Add support for unlogged sequences. Unlike for unlogged tables, this is not a performance feature. It allows sequences associated with unlogged tables to be excluded from replication. A new subcommand ALTER SEQUENCE ... SET LOGGED/UNLOGGED is added. An identity/serial sequence now automatically gets and follows the persistence level (logged/unlogged) of its owning table. (The sequences owned by temporary tables were already temporary through the separate mechanism in RangeVarAdjustRelationPersistence().) But you can still change the persistence of an owned sequence separately. Also, pg_dump and pg_upgrade preserve the persistence of existing sequences. Discussion: https://www.postgresql.org/message-id/flat/04e12818-2f98-257c-b926-2845d74ed04f%402ndquadrant.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/344d62fb9a978a72cf8347f0369b9ee643fd0b31 Modified Files -------------- doc/src/sgml/ref/alter_sequence.sgml | 12 ++++++ doc/src/sgml/ref/alter_table.sgml | 6 +++ doc/src/sgml/ref/create_sequence.sgml | 23 ++++++++++- doc/src/sgml/ref/create_table.sgml | 5 +++ doc/src/sgml/ref/pg_dump.sgml | 7 ++-- src/backend/commands/sequence.c | 58 ++++++++++++++++++++++++---- src/backend/commands/tablecmds.c | 32 ++++++++++++++-- src/backend/parser/parse_utilcmd.c | 1 + src/bin/pg_dump/pg_dump.c | 15 +++++++- src/bin/psql/describe.c | 8 +++- src/bin/psql/tab-complete.c | 5 ++- src/include/commands/sequence.h | 1 + src/test/recovery/t/014_unlogged_reinit.pl | 61 +++++++++++++++++++++++++++--- src/test/regress/expected/alter_table.out | 4 +- src/test/regress/expected/sequence.out | 20 +++++++++- src/test/regress/sql/sequence.sql | 10 ++++- 16 files changed, 237 insertions(+), 31 deletions(-)