By the way about the v3 patch,
+#define InvalidXLogSegNo ((XLogSegNo) 0xFFFFFFFFFFFFFFFF)
Like InvalidXLogRecPtr, the first valid segment number is 1 so we can
use 0 as InvalidXLogSegNo.
BootStrapXLOG():
/* Create first XLOG segment file */
openLogFile = XLogFileInit(1);
KeepLogSeg():
/* avoid underflow, don't go below 1 */
if (currSegNo <= keep_segs)
segno = 1;
regards.
--
Kyotaro Horiguchi
NTT Open Source Software Center