diff options
| author | Peter Eisentraut <peter_e@gmx.net> | 2018-04-07 11:17:56 -0400 |
|---|---|---|
| committer | Peter Eisentraut <peter_e@gmx.net> | 2018-04-07 11:34:10 -0400 |
| commit | 5dfd1e5a6696b271a2cdee54143fbc209c88c02f (patch) | |
| tree | 9654f50fe72c84d737ad8edb4cdde339a4b36dcc /src/include/replication/reorderbuffer.h | |
| parent | b508a56f2f3a2d850e75a14661943d6b4dde8274 (diff) | |
Logical decoding of TRUNCATE
Add a new WAL record type for TRUNCATE, which is only used when
wal_level >= logical. (For physical replication, TRUNCATE is already
replicated via SMGR records.) Add new callback for logical decoding
output plugins to receive TRUNCATE actions.
Author: Simon Riggs <simon@2ndquadrant.com>
Author: Marco Nenciarini <marco.nenciarini@2ndquadrant.it>
Author: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
Reviewed-by: Petr Jelinek <petr.jelinek@2ndquadrant.com>
Reviewed-by: Andres Freund <andres@anarazel.de>
Reviewed-by: Alvaro Herrera <alvherre@alvh.no-ip.org>
Diffstat (limited to 'src/include/replication/reorderbuffer.h')
| -rw-r--r-- | src/include/replication/reorderbuffer.h | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/src/include/replication/reorderbuffer.h b/src/include/replication/reorderbuffer.h index aa430c843c0..3867ce89505 100644 --- a/src/include/replication/reorderbuffer.h +++ b/src/include/replication/reorderbuffer.h @@ -59,7 +59,8 @@ enum ReorderBufferChangeType REORDER_BUFFER_CHANGE_INTERNAL_COMMAND_ID, REORDER_BUFFER_CHANGE_INTERNAL_TUPLECID, REORDER_BUFFER_CHANGE_INTERNAL_SPEC_INSERT, - REORDER_BUFFER_CHANGE_INTERNAL_SPEC_CONFIRM + REORDER_BUFFER_CHANGE_INTERNAL_SPEC_CONFIRM, + REORDER_BUFFER_CHANGE_TRUNCATE }; /* @@ -99,6 +100,18 @@ typedef struct ReorderBufferChange ReorderBufferTupleBuf *newtuple; } tp; + /* + * Truncate data for REORDER_BUFFER_CHANGE_TRUNCATE representing + * one set of relations to be truncated. + */ + struct + { + Size nrelids; + bool cascade; + bool restart_seqs; + Oid *relids; + } truncate; + /* Message with arbitrary data. */ struct { @@ -283,6 +296,14 @@ typedef void (*ReorderBufferApplyChangeCB) ( Relation relation, ReorderBufferChange *change); +/* truncate callback signature */ +typedef void (*ReorderBufferApplyTruncateCB) ( + ReorderBuffer *rb, + ReorderBufferTXN *txn, + int nrelations, + Relation relations[], + ReorderBufferChange *change); + /* begin callback signature */ typedef void (*ReorderBufferBeginCB) ( ReorderBuffer *rb, @@ -328,6 +349,7 @@ struct ReorderBuffer */ ReorderBufferBeginCB begin; ReorderBufferApplyChangeCB apply_change; + ReorderBufferApplyTruncateCB apply_truncate; ReorderBufferCommitCB commit; ReorderBufferMessageCB message; |