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Commit7057bf2

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committed
Fix XID list support some more
Read/out support in5ca0fe5 was missing/incomplete, per Tom Lane.Again, as far as core is concerned, this is not only dead code but alsountested; however, third parties may come to rely on it, so the standardfeatures should work.Discussion:https://postgr.es/m/1548311.1657636605@sss.pgh.pa.us
1 parent58b4f36 commit7057bf2

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2 files changed

+24
-2
lines changed

2 files changed

+24
-2
lines changed

‎src/backend/nodes/outfuncs.c

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -833,7 +833,8 @@ outNode(StringInfo str, const void *obj)
833833

834834
if (obj==NULL)
835835
appendStringInfoString(str,"<>");
836-
elseif (IsA(obj,List)||IsA(obj,IntList)||IsA(obj,OidList))
836+
elseif (IsA(obj,List)||IsA(obj,IntList)||IsA(obj,OidList)||
837+
IsA(obj,XidList))
837838
_outList(str,obj);
838839
/* nodeRead does not want to see { } around these! */
839840
elseif (IsA(obj,Integer))

‎src/backend/nodes/read.c

Lines changed: 22 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -304,7 +304,7 @@ nodeTokenType(const char *token, int length)
304304
** Value token nodes (integers, floats, booleans, or strings);
305305
** General nodes (via parseNodeString() from readfuncs.c);
306306
** Lists of the above;
307-
** Lists of integersorOIDs.
307+
** Lists of integers, OIDs,orTransactionIds.
308308
* The return value is declared void *, not Node *, to avoid having to
309309
* cast it explicitly in callers that assign to fields of different types.
310310
*
@@ -346,6 +346,7 @@ nodeRead(const char *token, int tok_len)
346346
/*----------
347347
* Could be an integer list:(i int int ...)
348348
* or an OID list:(o int int ...)
349+
* or an XID list:(x int int ...)
349350
* or a list of nodes/values:(node node ...)
350351
*----------
351352
*/
@@ -392,6 +393,26 @@ nodeRead(const char *token, int tok_len)
392393
l=lappend_oid(l,val);
393394
}
394395
}
396+
elseif (tok_len==1&&token[0]=='x')
397+
{
398+
/* List of TransactionIds */
399+
for (;;)
400+
{
401+
TransactionIdval;
402+
char*endptr;
403+
404+
token=pg_strtok(&tok_len);
405+
if (token==NULL)
406+
elog(ERROR,"unterminated List structure");
407+
if (token[0]==')')
408+
break;
409+
val= (TransactionId)strtoul(token,&endptr,10);
410+
if (endptr!=token+tok_len)
411+
elog(ERROR,"unrecognized Xid: \"%.*s\"",
412+
tok_len,token);
413+
l=lappend_xid(l,val);
414+
}
415+
}
395416
else
396417
{
397418
/* List of other node types */

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