Hi Amit.
PSA the v12 patch for the Tablesync Solution1.
Differences from v11:
+ Added PG docs to mention the tablesync slot
+ Refactored tablesync slot drop (done by
DropSubscription/process_syncing_tables_for_sync)
+ Fixed PG docs mentioning wrong state code
+ Fixed wrong code comment describing TCOPYDONE state
====
Features:
* The tablesync slot is now permanent instead of temporary. The
tablesync slot name is no longer tied to the Subscription slot na
* The tablesync slot cleanup (drop) code is added for DropSubscription
and for process_syncing_tables_for_sync functions
* The tablesync worker is now allowing multiple tx instead of single tx
* A new state (SUBREL_STATE_TCOPYDONE) is persisted after a successful
copy_table in LogicalRepSyncTableStart.
* If a re-launched tablesync finds state SUBREL_STATE_TCOPYDONE then
it will bypass the initial copy_table phase.
* Now tablesync sets up replication origin tracking in
LogicalRepSyncTableStart (similar as done for the apply worker). The
origin is advanced when first created.
* The tablesync replication origin tracking is cleaned up during
DropSubscription and/or process_syncing_tables_for_apply.
* The DropSubscription cleanup code was enhanced (v7+) to take care of
any crashed tablesync workers.
* Updates to PG docs
TODO / Known Issues:
* Address review comments
* Patch applies with whitespace warning
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Kind Regards,
Peter Smith.
Fujitsu Australia
