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Implement List support for TransactionId

Use it for RelationSyncEntry->streamed_txns, which is currently using an
integer list.

The API support is not complete, not because it is hard to write but
because it's unclear that it's worth the code space, there being so
little use of XID lists.

Discussion: https://postgr.es/m/202205130830.g5ntonhztspb@alvherre.pgsql
Reviewed-by: Amit Kapila <amit.kapila16@gmail.com>
This commit is contained in:
Alvaro Herrera
2022-07-04 14:52:12 +02:00
parent 55f4802785
commit f10a025cfe
5 changed files with 70 additions and 12 deletions

View File

@@ -221,6 +221,8 @@ _outList(StringInfo str, const List *node)
appendStringInfoChar(str, 'i');
else if (IsA(node, OidList))
appendStringInfoChar(str, 'o');
else if (IsA(node, XidList))
appendStringInfoChar(str, 'x');
foreach(lc, node)
{
@@ -239,6 +241,8 @@ _outList(StringInfo str, const List *node)
appendStringInfo(str, " %d", lfirst_int(lc));
else if (IsA(node, OidList))
appendStringInfo(str, " %u", lfirst_oid(lc));
else if (IsA(node, XidList))
appendStringInfo(str, " %u", lfirst_xid(lc));
else
elog(ERROR, "unrecognized list node type: %d",
(int) node->type);