date_extract_dow
Extracts the day of the week as an integer between 0 and 6 where
Sunday = 0
Monday = 1
Tuesday = 2
Wednesday = 3
Thursday = 4
Friday = 5
Saturday = 6
Examples:
date_extract_dow(to_fixed_timestamp('2017-12-13T00:24:53Z'))
-- Result: "3"
date_extract_dow(to_floating_timestamp('2017-12-13T8:24:53'))
-- Result: "3"
date_extract_dow(to_fixed_timestamp('2017-12-13T23:24:53+0930'))
-- Result: "3"
a -> number