UNWATCH
Syntax
UNWATCH 
Time complexity: O(1)
Flushes all the previously watched keys for a transaction.
If you call EXEC or DISCARD, there's no need to manually call UNWATCH.
Return
Simple string reply: always OK.
UNWATCH 
Time complexity: O(1)
Flushes all the previously watched keys for a transaction.
If you call EXEC or DISCARD, there's no need to manually call UNWATCH.
Simple string reply: always OK.