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| author | Amit Kapila <akapila@postgresql.org> | 2021-08-04 07:47:06 +0530 |
|---|---|---|
| committer | Amit Kapila <akapila@postgresql.org> | 2021-08-04 07:47:06 +0530 |
| commit | 63cf61cdeb7b0450dcf3b2f719c553177bac85a2 (patch) | |
| tree | 91df5f810b6cd96ddd1d7f2f4bd1c286af0fa2dc /src/include/replication/logicalproto.h | |
| parent | 6424337073589476303b10f6d7cc74f501b8d9d7 (diff) | |
| download | postgresql-63cf61cdeb7b0450dcf3b2f719c553177bac85a2.tar.gz | |
Add prepare API support for streaming transactions in logical replication.
Commit a8fd13cab0 added support for prepared transactions to built-in
logical replication via a new option "two_phase" for a subscription. The
"two_phase" option was not allowed with the existing streaming option.
This commit permits the combination of "streaming" and "two_phase"
subscription options. It extends the pgoutput plugin and the subscriber
side code to add the prepare API for streaming transactions which will
apply the changes accumulated in the spool-file at prepare time.
Author: Peter Smith and Ajin Cherian
Reviewed-by: Vignesh C, Amit Kapila, Greg Nancarrow
Tested-By: Haiying Tang
Discussion: https://postgr.es/m/02DA5F5E-CECE-4D9C-8B4B-418077E2C010@postgrespro.ru
Discussion: https://postgr.es/m/CAMGcDxeqEpWj3fTXwqhSwBdXd2RS9jzwWscO-XbeCfso6ts3+Q@mail.gmail.com
Diffstat (limited to 'src/include/replication/logicalproto.h')
| -rw-r--r-- | src/include/replication/logicalproto.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/include/replication/logicalproto.h b/src/include/replication/logicalproto.h index 63de90d94a..2e29513151 100644 --- a/src/include/replication/logicalproto.h +++ b/src/include/replication/logicalproto.h @@ -67,7 +67,8 @@ typedef enum LogicalRepMsgType LOGICAL_REP_MSG_STREAM_START = 'S', LOGICAL_REP_MSG_STREAM_END = 'E', LOGICAL_REP_MSG_STREAM_COMMIT = 'c', - LOGICAL_REP_MSG_STREAM_ABORT = 'A' + LOGICAL_REP_MSG_STREAM_ABORT = 'A', + LOGICAL_REP_MSG_STREAM_PREPARE = 'p' } LogicalRepMsgType; /* @@ -196,7 +197,10 @@ extern void logicalrep_write_rollback_prepared(StringInfo out, ReorderBufferTXN TimestampTz prepare_time); extern void logicalrep_read_rollback_prepared(StringInfo in, LogicalRepRollbackPreparedTxnData *rollback_data); - +extern void logicalrep_write_stream_prepare(StringInfo out, ReorderBufferTXN *txn, + XLogRecPtr prepare_lsn); +extern void logicalrep_read_stream_prepare(StringInfo in, + LogicalRepPreparedTxnData *prepare_data); extern void logicalrep_write_origin(StringInfo out, const char *origin, XLogRecPtr origin_lsn); |