Fix thinko in logical decoding of commit-prepared records.

hlinnaka · hlinnaka · commit 03e2b1017c0d · 2014-05-16T10:53:10.000+03:00
The decoding of prepared transaction commits accidentally used the XID of the transaction performing the COMMIT PREPARED, not the XID of the prepared transaction. Before bb38fb0 that lead to those transactions not being decoded, afterwards to a assertion failure.
diff --git a/src/backend/replication/logical/decode.c b/src/backend/replication/logical/decode.c
@@ -225,7 +225,7 @@ DecodeXactOp(LogicalDecodingContext *ctx, XLogRecordBuffer *buf)
 				subxacts = (TransactionId *) &(xlrec->xnodes[xlrec->nrels]);
 				invals = (SharedInvalidationMessage *) &(subxacts[xlrec->nsubxacts]);
 
-				DecodeCommit(ctx, buf, r->xl_xid, xlrec->dbId,
+				DecodeCommit(ctx, buf, prec->xid, xlrec->dbId,
 							 xlrec->xact_time,
 							 xlrec->nsubxacts, subxacts,
 							 xlrec->nmsgs, invals);
