Fix defects in PrepareForIncrementalBackup.
Swap the arguments to TimestampDifferenceMilliseconds so that we get
a positive answer instead of zero.
Then use the result of that computation instead of ignoring it.
Per reports from Alexander Lakhin.
Discussion: http://postgr.es/m/8b686764-7ac1-74c3-70f9-b64685a2535f@gmail.com
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/dffde5bf16a590543a35bedffc936a33686651d4
Modified Files
--------------
src/backend/backup/basebackup_incremental.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)