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15bc038f9b
postgresql/src/include
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Tom Lane 15bc038f9b Relax transactional restrictions on ALTER TYPE ... ADD VALUE. 
To prevent possibly breaking indexes on enum columns, we must keep
uncommitted enum values from getting stored in tables, unless we
can be sure that any such column is new in the current transaction.

Formerly, we enforced this by disallowing ALTER TYPE ... ADD VALUE
from being executed at all in a transaction block, unless the target
enum type had been created in the current transaction.  This patch
removes that restriction, and instead insists that an uncommitted enum
value can't be referenced unless it belongs to an enum type created
in the same transaction as the value.  Per discussion, this should be
a bit less onerous.  It does require each function that could possibly
return a new enum value to SQL operations to check this restriction,
but there aren't so many of those that this seems unmaintainable.

Andrew Dunstan and Tom Lane

Discussion: <4075.1459088427@sss.pgh.pa.us>
2016-09-05 12:59:55 -04:00
..
access New recovery target recovery_target_lsn 2016-09-03 17:48:01 +01:00
bootstrap Update copyright for 2016 2016-01-02 13:33:40 -05:00
catalog Fix stray reference to the old genbki.sh script. 2016-08-28 17:44:29 -04:00
commands Relax transactional restrictions on ALTER TYPE ... ADD VALUE. 2016-09-05 12:59:55 -04:00
common Move code shared between libpq and backend from backend/libpq/ to common/. 2016-09-02 13:49:59 +03:00
datatype Be more careful about out-of-range dates and timestamps. 2016-03-16 19:09:28 -04:00
executor Fix worst memory leaks in tqueue.c. 2016-07-29 19:31:06 -04:00
fe_utils Fix assorted places in psql to print version numbers >= 10 in new style. 2016-08-16 15:58:45 -04:00
foreign Remove GetUserMappingId() and GetUserMappingById(). 2016-07-22 11:32:23 -04:00
lib Support multiple iterators in the Red-Black Tree implementation. 2016-09-02 08:39:39 +03:00
libpq Move code shared between libpq and backend from backend/libpq/ to common/. 2016-09-02 13:49:59 +03:00
mb Update copyright for 2016 2016-01-02 13:33:40 -05:00
nodes Update comments to reflect code rearrangement. 2016-08-31 12:36:18 +05:30
optimizer Speed up planner's scanning for parallel-query hazards. 2016-08-19 14:03:13 -04:00
parser Fix type-safety problem with parallel aggregate serial/deserialization. 2016-06-22 16:52:41 -04:00
port Fix various common mispellings. 2016-06-03 16:08:45 +01:00
portability Update copyright for 2016 2016-01-02 13:33:40 -05:00
postmaster Allow Pin/UnpinBuffer to operate in a lockfree manner. 2016-04-10 20:12:32 -07:00
regex Clean up another pre-ANSI-C-ism in regex code: get rid of pcolor typedef. 2016-08-19 13:31:10 -04:00
replication Add conninfo to pg_stat_wal_receiver 2016-06-29 16:57:17 -04:00
rewrite Update copyright for 2016 2016-01-02 13:33:40 -05:00
snowball Update copyright for 2016 2016-01-02 13:33:40 -05:00
storage Add debug check function LWLockHeldByMeInMode() 2016-09-05 10:38:08 +01:00
tcop Stop the executor if no more tuples can be sent from worker to leader. 2016-06-06 14:52:58 -04:00
tsearch Final pgindent + perltidy run for 9.6. 2016-08-15 13:42:51 -04:00
utils Add macros to make AllocSetContextCreate() calls simpler and safer. 2016-08-27 17:50:38 -04:00
.gitignore Autoconfiscate selection of 64-bit int type for 64-bit large object API. 2012-10-07 21:52:43 -04:00
c.h Make init_spin_delay() C89 compliant and change stuck spinlock reporting. 2016-04-13 17:00:53 -07:00
fmgr.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
funcapi.h Widen query numbers-of-tuples-processed counters to uint64. 2016-03-12 16:05:29 -05:00
getaddrinfo.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
getopt_long.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
Makefile Create src/fe_utils/, and move stuff into there from pg_dump's dumputils. 2016-03-24 15:55:57 -04:00
miscadmin.h Mark PostmasterPid as PGDLLIMPORT. 2016-06-03 14:06:35 -04:00
pg_config_ext.h.in Autoconfiscate selection of 64-bit int type for 64-bit large object API. 2012-10-07 21:52:43 -04:00
pg_config_ext.h.win32 Autoconfiscate selection of 64-bit int type for 64-bit large object API. 2012-10-07 21:52:43 -04:00
pg_config_manual.h Add support for more extensive testing of raw_expression_tree_walker(). 2016-05-23 19:08:26 -04:00
pg_config.h.in Add BSD authentication method. 2016-04-08 13:52:06 -04:00
pg_config.h.win32 Stamp HEAD as 10devel. 2016-08-15 13:49:49 -04:00
pg_getopt.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
pg_trace.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
pgstat.h pgindent run for 9.6 2016-06-09 18:02:36 -04:00
pgtar.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
pgtime.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
port.h Simplify correct use of simple_prompt(). 2016-08-30 17:02:02 -04:00
postgres_ext.h Add a nonlocalized version of the severity field to client error messages. 2016-08-26 16:20:17 -04:00
postgres_fe.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
postgres.h Use static inline functions for float <-> Datum conversions. 2016-08-31 16:00:28 +03:00
rusagestub.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
windowapi.h Update copyright for 2016 2016-01-02 13:33:40 -05:00