diff options
| author | Amit Kapila | 2024-07-24 04:43:36 +0000 |
|---|---|---|
| committer | Amit Kapila | 2024-07-24 04:43:36 +0000 |
| commit | 1462aad2e4474ab61174f8ab00992cd3d6d57c7b (patch) | |
| tree | 9649b47a93c4b7257db1295f65f8d0213c5b3537 /src/include/replication/worker_internal.h | |
| parent | 774d47b6c01a8b8111ae390b97343f25ebdf9267 (diff) | |
Allow altering of two_phase option of a SUBSCRIPTION.
The two_phase option is controlled by both the publisher (as a slot
option) and the subscriber (as a subscription option), so the slot option
must also be modified.
Changing the 'two_phase' option for a subscription from 'true' to 'false'
is permitted only when there are no pending prepared transactions
corresponding to that subscription. Otherwise, the changes of already
prepared transactions can be replicated again along with their corresponding
commit leading to duplicate data or errors.
To avoid data loss, the 'two_phase' option for a subscription can only be
changed from 'false' to 'true' once the initial data synchronization is
completed. Therefore this is performed later by the logical replication worker.
Author: Hayato Kuroda, Ajin Cherian, Amit Kapila
Reviewed-by: Peter Smith, Hou Zhijie, Amit Kapila, Vitaly Davydov, Vignesh C
Discussion: https://postgr.es/m/8fab8-65d74c80-1-2f28e880@39088166
Diffstat (limited to 'src/include/replication/worker_internal.h')
| -rw-r--r-- | src/include/replication/worker_internal.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/include/replication/worker_internal.h b/src/include/replication/worker_internal.h index 515aefd5191..9646261d7e9 100644 --- a/src/include/replication/worker_internal.h +++ b/src/include/replication/worker_internal.h @@ -240,7 +240,8 @@ extern PGDLLIMPORT bool InitializingApplyWorker; extern void logicalrep_worker_attach(int slot); extern LogicalRepWorker *logicalrep_worker_find(Oid subid, Oid relid, bool only_running); -extern List *logicalrep_workers_find(Oid subid, bool only_running); +extern List *logicalrep_workers_find(Oid subid, bool only_running, + bool acquire_lock); extern bool logicalrep_worker_launch(LogicalRepWorkerType wtype, Oid dbid, Oid subid, const char *subname, Oid userid, Oid relid, |