maxMap
Description
The Map combinator can be applied to the max
function to calculate the maximum value in a Map according to each key, using the maxMap
aggregate combinator function.
Example Usage
In this example, we'll create a table that stores status codes and their counts for different timeslots,
where each row contains a Map of status codes to their corresponding counts. We'll use
maxMap to find the maximum count for each status code within each timeslot.
The maxMap function will find the maximum count for each status code within each timeslot. For example:
- In timeslot '2000-01-01 00:00:00':
- Status 'a': 15
- Status 'b': 25
- Status 'c': max(35, 45) = 45
- Status 'd': 55
- Status 'e': 65
- In timeslot '2000-01-01 00:01:00':
- Status 'd': 75
- Status 'e': 85
- Status 'f': max(95, 105) = 105
- Status 'g': max(115, 125) = 125