fix: check pWal->cfg.retentionPeriod properly

source/libs/wal/src/walWrite.c

@@ -328,8 +328,8 @@ int32_t walEndSnapshot(SWal *pWal) {
              "), new tot size %" PRId64,
              pWal->cfg.vgId, iter->firstVer, iter->fileSize, iter->closeTs, newTotSize);
       if (((pWal->cfg.retentionSize == 0) || (pWal->cfg.retentionSize != -1 && newTotSize > pWal->cfg.retentionSize)) ||
-          ((pWal->cfg.retentionPeriod == 0) ||
-           (pWal->cfg.retentionPeriod != -1 && iter->closeTs + pWal->cfg.retentionPeriod > ts))) {
+          ((pWal->cfg.retentionPeriod == 0) || (pWal->cfg.retentionPeriod != -1 && iter->closeTs != -1 &&
+                                                iter->closeTs + pWal->cfg.retentionPeriod < ts))) {
         // delete according to file size or close time
         wDebug("vgId:%d, check pass", pWal->cfg.vgId);
         deleteCnt++;