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Mark advisory-lock functions as parallel restricted, not parallel unsafe.

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There seems no good reason not to allow a parallel leader to execute
these functions.  (The workers still can't, though.  Although the code
would work, any such lock would go away at worker exit, which is not
the documented behavior of advisory locks.)

Discussion: https://postgr.es/m/11847.1564496844@sss.pgh.pa.us
This commit is contained in:
Tom Lane 2019-08-01 11:36:21 -04:00
parent fd6ec93bf8
commit 4886da8327
2 changed files with 22 additions and 22 deletions
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2
src/include/catalog/catversion.h
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@ -53,6 +53,6 @@
*/
/* yyyymmddN */
#define CATALOG_VERSION_NO 201907222
#define CATALOG_VERSION_NO 201908011
#endif

42
src/include/catalog/pg_proc.dat
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@ -7951,87 +7951,87 @@
# userlock replacements
{ oid => '2880', descr => 'obtain exclusive advisory lock',
proname => 'pg_advisory_lock', provolatile => 'v', proparallel => 'u',
proname => 'pg_advisory_lock', provolatile => 'v', proparallel => 'r',
prorettype => 'void', proargtypes => 'int8',
prosrc => 'pg_advisory_lock_int8' },
{ oid => '3089', descr => 'obtain exclusive advisory lock',
proname => 'pg_advisory_xact_lock', provolatile => 'v', proparallel => 'u',
proname => 'pg_advisory_xact_lock', provolatile => 'v', proparallel => 'r',
prorettype => 'void', proargtypes => 'int8',
prosrc => 'pg_advisory_xact_lock_int8' },
{ oid => '2881', descr => 'obtain shared advisory lock',
proname => 'pg_advisory_lock_shared', provolatile => 'v', proparallel => 'u',
proname => 'pg_advisory_lock_shared', provolatile => 'v', proparallel => 'r',
prorettype => 'void', proargtypes => 'int8',
prosrc => 'pg_advisory_lock_shared_int8' },
{ oid => '3090', descr => 'obtain shared advisory lock',
proname => 'pg_advisory_xact_lock_shared', provolatile => 'v',
proparallel => 'u', prorettype => 'void', proargtypes => 'int8',
proparallel => 'r', prorettype => 'void', proargtypes => 'int8',
prosrc => 'pg_advisory_xact_lock_shared_int8' },
{ oid => '2882', descr => 'obtain exclusive advisory lock if available',
proname => 'pg_try_advisory_lock', provolatile => 'v', proparallel => 'u',
proname => 'pg_try_advisory_lock', provolatile => 'v', proparallel => 'r',
prorettype => 'bool', proargtypes => 'int8',
prosrc => 'pg_try_advisory_lock_int8' },
{ oid => '3091', descr => 'obtain exclusive advisory lock if available',
proname => 'pg_try_advisory_xact_lock', provolatile => 'v',
proparallel => 'u', prorettype => 'bool', proargtypes => 'int8',
proparallel => 'r', prorettype => 'bool', proargtypes => 'int8',
prosrc => 'pg_try_advisory_xact_lock_int8' },
{ oid => '2883', descr => 'obtain shared advisory lock if available',
proname => 'pg_try_advisory_lock_shared', provolatile => 'v',
proparallel => 'u', prorettype => 'bool', proargtypes => 'int8',
proparallel => 'r', prorettype => 'bool', proargtypes => 'int8',
prosrc => 'pg_try_advisory_lock_shared_int8' },
{ oid => '3092', descr => 'obtain shared advisory lock if available',
proname => 'pg_try_advisory_xact_lock_shared', provolatile => 'v',
proparallel => 'u', prorettype => 'bool', proargtypes => 'int8',
proparallel => 'r', prorettype => 'bool', proargtypes => 'int8',
prosrc => 'pg_try_advisory_xact_lock_shared_int8' },
{ oid => '2884', descr => 'release exclusive advisory lock',
proname => 'pg_advisory_unlock', provolatile => 'v', proparallel => 'u',
proname => 'pg_advisory_unlock', provolatile => 'v', proparallel => 'r',
prorettype => 'bool', proargtypes => 'int8',
prosrc => 'pg_advisory_unlock_int8' },
{ oid => '2885', descr => 'release shared advisory lock',
proname => 'pg_advisory_unlock_shared', provolatile => 'v',
proparallel => 'u', prorettype => 'bool', proargtypes => 'int8',
proparallel => 'r', prorettype => 'bool', proargtypes => 'int8',
prosrc => 'pg_advisory_unlock_shared_int8' },
{ oid => '2886', descr => 'obtain exclusive advisory lock',
proname => 'pg_advisory_lock', provolatile => 'v', proparallel => 'u',
proname => 'pg_advisory_lock', provolatile => 'v', proparallel => 'r',
prorettype => 'void', proargtypes => 'int4 int4',
prosrc => 'pg_advisory_lock_int4' },
{ oid => '3093', descr => 'obtain exclusive advisory lock',
proname => 'pg_advisory_xact_lock', provolatile => 'v', proparallel => 'u',
proname => 'pg_advisory_xact_lock', provolatile => 'v', proparallel => 'r',
prorettype => 'void', proargtypes => 'int4 int4',
prosrc => 'pg_advisory_xact_lock_int4' },
{ oid => '2887', descr => 'obtain shared advisory lock',
proname => 'pg_advisory_lock_shared', provolatile => 'v', proparallel => 'u',
proname => 'pg_advisory_lock_shared', provolatile => 'v', proparallel => 'r',
prorettype => 'void', proargtypes => 'int4 int4',
prosrc => 'pg_advisory_lock_shared_int4' },
{ oid => '3094', descr => 'obtain shared advisory lock',
proname => 'pg_advisory_xact_lock_shared', provolatile => 'v',
proparallel => 'u', prorettype => 'void', proargtypes => 'int4 int4',
proparallel => 'r', prorettype => 'void', proargtypes => 'int4 int4',
prosrc => 'pg_advisory_xact_lock_shared_int4' },
{ oid => '2888', descr => 'obtain exclusive advisory lock if available',
proname => 'pg_try_advisory_lock', provolatile => 'v', proparallel => 'u',
proname => 'pg_try_advisory_lock', provolatile => 'v', proparallel => 'r',
prorettype => 'bool', proargtypes => 'int4 int4',
prosrc => 'pg_try_advisory_lock_int4' },
{ oid => '3095', descr => 'obtain exclusive advisory lock if available',
proname => 'pg_try_advisory_xact_lock', provolatile => 'v',
proparallel => 'u', prorettype => 'bool', proargtypes => 'int4 int4',
proparallel => 'r', prorettype => 'bool', proargtypes => 'int4 int4',
prosrc => 'pg_try_advisory_xact_lock_int4' },
{ oid => '2889', descr => 'obtain shared advisory lock if available',
proname => 'pg_try_advisory_lock_shared', provolatile => 'v',
proparallel => 'u', prorettype => 'bool', proargtypes => 'int4 int4',
proparallel => 'r', prorettype => 'bool', proargtypes => 'int4 int4',
prosrc => 'pg_try_advisory_lock_shared_int4' },
{ oid => '3096', descr => 'obtain shared advisory lock if available',
proname => 'pg_try_advisory_xact_lock_shared', provolatile => 'v',
proparallel => 'u', prorettype => 'bool', proargtypes => 'int4 int4',
proparallel => 'r', prorettype => 'bool', proargtypes => 'int4 int4',
prosrc => 'pg_try_advisory_xact_lock_shared_int4' },
{ oid => '2890', descr => 'release exclusive advisory lock',
proname => 'pg_advisory_unlock', provolatile => 'v', proparallel => 'u',
proname => 'pg_advisory_unlock', provolatile => 'v', proparallel => 'r',
prorettype => 'bool', proargtypes => 'int4 int4',
prosrc => 'pg_advisory_unlock_int4' },
{ oid => '2891', descr => 'release shared advisory lock',
proname => 'pg_advisory_unlock_shared', provolatile => 'v',
proparallel => 'u', prorettype => 'bool', proargtypes => 'int4 int4',
proparallel => 'r', prorettype => 'bool', proargtypes => 'int4 int4',
prosrc => 'pg_advisory_unlock_shared_int4' },
{ oid => '2892', descr => 'release all advisory locks',
proname => 'pg_advisory_unlock_all', provolatile => 'v', proparallel => 'u',
proname => 'pg_advisory_unlock_all', provolatile => 'v', proparallel => 'r',
prorettype => 'void', proargtypes => '', prosrc => 'pg_advisory_unlock_all' },
# XML support