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Commit13426e8

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Avoid redundand sending of relation to replicas
1 parentc49dd87 commit13426e8

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2 files changed

+19
-3
lines changed

2 files changed

+19
-3
lines changed

‎contrib/mmts/pglogical_apply.c‎

Lines changed: 12 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -62,6 +62,7 @@ typedef struct TupleData
6262
boolchanged[MaxTupleAttributeNumber];
6363
}TupleData;
6464

65+
6566
staticRelationread_rel(StringInfos,LOCKMODEmode);
6667
staticvoidread_tuple_parts(StringInfos,Relationrel,TupleData*tup);
6768
staticEState*create_rel_estate(Relationrel);
@@ -581,6 +582,15 @@ read_tuple_parts(StringInfo s, Relation rel, TupleData *tup)
581582
}
582583
}
583584

585+
staticvoid
586+
close_rel(Relationrel)
587+
{
588+
if (rel!=NULL)
589+
{
590+
heap_close(rel,NoLock);
591+
}
592+
}
593+
584594
staticRelation
585595
read_rel(StringInfos,LOCKMODEmode)
586596
{
@@ -823,7 +833,6 @@ process_remote_insert(StringInfo s, Relation rel)
823833
MtmMakeRelationLocal(RelationGetRelid(rel));
824834
}
825835

826-
heap_close(rel,NoLock);
827836
ExecResetTupleTable(estate->es_tupleTable, true);
828837
FreeExecutorState(estate);
829838

@@ -944,7 +953,6 @@ process_remote_update(StringInfo s, Relation rel)
944953

945954
/* release locks upon commit */
946955
index_close(idxrel,NoLock);
947-
heap_close(rel,NoLock);
948956

949957
ExecResetTupleTable(estate->es_tupleTable, true);
950958
FreeExecutorState(estate);
@@ -1019,7 +1027,6 @@ process_remote_delete(StringInfo s, Relation rel)
10191027
PopActiveSnapshot();
10201028

10211029
index_close(idxrel,NoLock);
1022-
heap_close(rel,NoLock);
10231030

10241031
ExecResetTupleTable(estate->es_tupleTable, true);
10251032
FreeExecutorState(estate);
@@ -1071,6 +1078,7 @@ void MtmExecutor(void* work, size_t size)
10711078
}
10721079
/* COMMIT */
10731080
case'C':
1081+
close_rel(rel);
10741082
process_remote_commit(&s);
10751083
break;
10761084
/* INSERT */
@@ -1086,6 +1094,7 @@ void MtmExecutor(void* work, size_t size)
10861094
process_remote_delete(&s,rel);
10871095
continue;
10881096
case'R':
1097+
close_rel(rel);
10891098
rel=read_rel(&s,RowExclusiveLock);
10901099
continue;
10911100
case'F':

‎contrib/mmts/pglogical_proto.c‎

Lines changed: 7 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -43,6 +43,7 @@ static bool MtmIsFilteredTxn;
4343
staticTransactionIdMtmCurrentXid;
4444
staticboolDDLInProgress= false;
4545
staticOidMtmSenderTID;/* transaction identifier for WAL sender */
46+
staticOidMtmLastRelId;/* last relation ID sent to the receiver in this transaction */
4647

4748
staticvoidpglogical_write_rel(StringInfoout,PGLogicalOutputData*data,Relationrel);
4849

@@ -95,6 +96,11 @@ pglogical_write_rel(StringInfo out, PGLogicalOutputData *data, Relation rel)
9596

9697
relid=RelationGetRelid(rel);
9798

99+
if (relid==MtmLastRelId) {
100+
return;
101+
}
102+
MtmLastRelId=relid;
103+
98104
pq_sendbyte(out,'R');/* sending RELATION */
99105
pq_sendint(out,relid,sizeofrelid);/* use Oid as relation identifier */
100106

@@ -143,6 +149,7 @@ pglogical_write_begin(StringInfo out, PGLogicalOutputData *data,
143149
pglogical_relid_map_reset();
144150
MtmSenderTID+=1;/* skip InvalidOid */
145151
}
152+
MtmLastRelId=InvalidOid;
146153
MtmCurrentXid=txn->xid;
147154
MtmIsFilteredTxn= false;
148155
MTM_LOG3("%d: pglogical_write_begin XID=%d node=%d CSN=%lld recovery=%d restart_decoding_lsn=%llx first_lsn=%llx end_lsn=%llx confirmed_flush=%llx",

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