Fix incorrect variable datatype

Both datatypes map to the same underlying one which is why it still
worked, but we should use the correct type.

Author: Kyotaro HORIGUCHI

diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 91edd54e8a808bc24deda644dc2617b748346bfe..b3d45b74f369a620ac0ea6ab0bce34991a28d5d3 100644 (file)
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -8963,7 +8963,7 @@ KeepLogSeg(XLogRecPtr recptr, XLogSegNo *logSegNo)
    /* then check whether slots limit removal further */
    if (max_replication_slots > 0 && keep != InvalidXLogRecPtr)
    {
-       XLogRecPtr  slotSegNo;
+       XLogSegNo   slotSegNo;
 
        XLByteToSeg(keep, slotSegNo);