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Code Issues Releases Wiki Activity

Issue properly WAL record for CID of first catalog tuple in multi-insert 

Multi-insert for heap is not yet used actively for catalogs, but the
code to support this case is in place for logical decoding.  The
existing code forgot to issue a XLOG_HEAP2_NEW_CID record for the first
tuple inserted, leading to failures when attempting to use multiple
inserts for catalogs at decoding time.  This commit fixes the problem by
WAL-logging the needed CID.

This is not an active bug, so no back-patch is done.

Author: Daniel Gustafsson
Discussion: https://postgr.es/m/E0D4CC67-A1CF-4DF4-991D-B3AC2EB5FAE9@yesql.se
This commit is contained in:
Michael Paquier 2020-02-25 07:55:22 +09:00
parent 3d475515a1
commit 7d672b76bf
1 changed files with 8 additions and 0 deletions
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8
src/backend/access/heap/heapam.c
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@ -2191,6 +2191,14 @@ heap_multi_insert(Relation relation, TupleTableSlot **slots, int ntuples,
* Put that on the page, and then as many other tuples as fit.
*/
RelationPutHeapTuple(relation, buffer, heaptuples[ndone], false);
/*
* Note that heap_multi_insert is not used for catalog tuples yet,
* but this will cover the gap once that is the case.
*/
if (needwal && need_cids)
log_heap_new_cid(relation, heaptuples[ndone]);
for (nthispage = 1; ndone + nthispage < ntuples; nthispage++)
{
HeapTuple heaptup = heaptuples[ndone + nthispage];