Extend RESET MASTER to allow specifying next binary log.

Hi,

I would like the "RESET MASTER" command to be extended to the following:

RESET MASTER [AT file_number]

where file_number would be the binary log index of the next binary log to create (instead of being <log_bin_basename>.000001, the next binary log file would be <log_bin_basename>.<file_number>).

This would allow to perform easy master promotion as discussed at slide # 31 of the below URL without "FLUSH BINARY LOGS" in a loop:
-http://www.slideshare.net/JeanFranoisGagn/binlog-servers-at-bookingcom

So if I have "log-bin = binlog" in my.cnf, a "RESET MASTER AT 1234" would generate "binlog.001234" as the next binary log file.

Many thanks,

JFG