diff options
| author | Michael Paquier <michael@paquier.xyz> | 2021-10-25 07:40:42 +0900 |
|---|---|---|
| committer | Michael Paquier <michael@paquier.xyz> | 2021-10-25 07:40:42 +0900 |
| commit | b4ada4e19fd7bedb433e46516ccd0ca4213d2719 (patch) | |
| tree | 2b75aeb117daecb677e200aa29fd36d801ef94e8 /src/include/nodes/replnodes.h | |
| parent | 70bef494000e4dbbeca0f0a40347ca1747aea701 (diff) | |
| download | postgresql-b4ada4e19fd7bedb433e46516ccd0ca4213d2719.tar.gz postgresql-b4ada4e19fd7bedb433e46516ccd0ca4213d2719.zip | |
Add replication command READ_REPLICATION_SLOT
The command is supported for physical slots for now, and returns the
type of slot, its restart_lsn and its restart_tli.
This will be useful for an upcoming patch related to pg_receivewal, to
allow the tool to be able to stream from the position of a slot, rather
than the last WAL position flushed by the backend (as reported by
IDENTIFY_SYSTEM) if the archive directory is found as empty, which would
be an advantage in the case of switching to a different archive
locations with the same slot used to avoid holes in WAL segment
archives.
Author: Ronan Dunklau
Reviewed-by: Kyotaro Horiguchi, Michael Paquier, Bharath Rupireddy
Discussion: https://postgr.es/m/18708360.4lzOvYHigE@aivenronan
Diffstat (limited to 'src/include/nodes/replnodes.h')
| -rw-r--r-- | src/include/nodes/replnodes.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/include/nodes/replnodes.h b/src/include/nodes/replnodes.h index faa3a251f26..a746fafc121 100644 --- a/src/include/nodes/replnodes.h +++ b/src/include/nodes/replnodes.h @@ -88,6 +88,17 @@ typedef struct StartReplicationCmd /* ---------------------- + * READ_REPLICATION_SLOT command + * ---------------------- + */ +typedef struct ReadReplicationSlotCmd +{ + NodeTag type; + char *slotname; +} ReadReplicationSlotCmd; + + +/* ---------------------- * TIMELINE_HISTORY command * ---------------------- */ |