Fix incorrect variable datatype.

Since slot_keep_segs indicates the number of WAL segments not LSN,
its datatype should not be XLogRecPtr.

Back-patch to v13 where this issue was added.

Reported-by: Atsushi Torikoshi
Author: Atsushi Torikoshi, tweaked by Fujii Masao
Discussion: https://postgr.es/m/ebd0d674f3e050222238a960cac5251a@oss.nttdata.com

diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f5df1025134a941c498d01fddce3d7db74a08d59..ff7381670877aca4341220199dace7d5cca2f177 100644 (file)
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -9601,7 +9601,7 @@ KeepLogSeg(XLogRecPtr recptr, XLogSegNo *logSegNo)
        /* Cap by max_slot_wal_keep_size ... */
        if (max_slot_wal_keep_size_mb >= 0)
        {
-           XLogRecPtr  slot_keep_segs;
+           uint64      slot_keep_segs;
 
            slot_keep_segs =
                ConvertToXSegs(max_slot_wal_keep_size_mb, wal_segment_size);