Origin (logical replication)
Logical replication Origin format. Identifies the message as an origin message.
Reading PG 18·Select a recorded version
- Layer
- Logical replication payload; distinct from the frontend/backend message envelope
- First field
- Byte1('O')
- fields
- map[description:Identifies the message as an origin message. format:Byte1('O')], map[description:The LSN of the commit on the origin server. format:Int64 (XLogRecPtr)], map[description:Name of the origin. format:String]
- manual path
- /docs/18/protocol-logicalrep-message-formats.html
- signature
- Origin
Definition PG 18
-
- Byte1('O')
-
Identifies the message as an origin message.
- Int64 (XLogRecPtr)
-
The LSN of the commit on the origin server.
- String
-
Name of the origin.
Note that there can be multiple Origin messages inside a single transaction.
Fields in documented order
| Position | Format | Meaning |
|---|---|---|
| 1 | Byte1('O') | Identifies the message as an origin message. |
| 2 | Int64 (XLogRecPtr) | The LSN of the commit on the origin server. |
| 3 | String | Name of the origin. |
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Source references
Full definition and evidence JSON
Definition sources
center · PostgreSQL 18 · 555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f
Text language: en · 555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f