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Add the notion of REPLICA IDENTITY for a table.

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Pending patches for logical replication will use this to determine
which columns of a tuple ought to be considered as its candidate key.

Andres Freund, with minor, mostly cosmetic adjustments by me
This commit is contained in:
Robert Haas
2013-11-08 12:30:43 -05:00
parent b97ee66cc1
commit 07cacba983
23 changed files with 902 additions and 49 deletions
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14
src/backend/nodes/copyfuncs.c
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@@ -3270,6 +3270,17 @@ _copyRefreshMatViewStmt(const RefreshMatViewStmt *from)
return newnode;
}
static ReplicaIdentityStmt *
_copyReplicaIdentityStmt(const ReplicaIdentityStmt *from)
{
ReplicaIdentityStmt *newnode = makeNode(ReplicaIdentityStmt);
COPY_SCALAR_FIELD(identity_type);
COPY_STRING_FIELD(name);
return newnode;
}
static CreateSeqStmt *
_copyCreateSeqStmt(const CreateSeqStmt *from)
{
@@ -4343,6 +4354,9 @@ copyObject(const void *from)
case T_RefreshMatViewStmt:
retval = _copyRefreshMatViewStmt(from);
break;
case T_ReplicaIdentityStmt:
retval = _copyReplicaIdentityStmt(from);
break;
case T_CreateSeqStmt:
retval = _copyCreateSeqStmt(from);
break;