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Add subtransaction handling for table synchronization workers.

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Since the old logic was completely unaware of subtransactions, a
change made in a subsequently-aborted subtransaction would still cause
workers to be stopped at toplevel transaction commit.  Fix that by
managing a stack of worker lists rather than just one.

Amit Khandekar and Robert Haas

Discussion: http://postgr.es/m/CAJ3gD9eaG_mWqiOTA2LfAug-VRNn1hrhf50Xi1YroxL37QkZNg@mail.gmail.com
This commit is contained in:
Robert Haas
2018-07-16 17:33:22 -04:00
parent f7cb2842bf
commit 32df1c9afa
4 changed files with 112 additions and 8 deletions
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src/include/replication/logicallauncher.h
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@@ -24,6 +24,7 @@ extern void ApplyLauncherShmemInit(void);
extern void ApplyLauncherWakeupAtCommit(void);
extern bool XactManipulatesLogicalReplicationWorkers(void);
extern void AtEOXact_ApplyLauncher(bool isCommit);
extern void AtEOSubXact_ApplyLauncher(bool isCommit, int nestDepth);
extern bool IsLogicalLauncher(void);