The number of partition boundaries between the timestamps.
Overloads
date_diff(part = VARCHAR, startdate = DATE, enddate = DATE)date_diff(part = VARCHAR, startdate = TIME, enddate = TIME)date_diff(part = VARCHAR, startdate = TIMESTAMP, enddate = TIMESTAMP)date_diff(part = VARCHAR, startdate = `TIMESTAMP WITH TIME ZONE`, enddate = `TIMESTAMP WITH TIME ZONE`)