Question

In my table, I'm storing action_seconds for any event in seconds

Table Name: event_table

id | action_seconds
1  | 90
2  | 120
3  | 140

Now, when I calculate avg of action_seconds,

Query: select avg(action_seconds) from event_table;

Expected Output: 1.56

Actual Output: 116.66

Is it possible? how to do? what kind of casting I have to implement to achieve this expected result?

Answer 1

使用以下查询。这将返回平均值（最初为秒），为minutes.seconds

SELECT TO_CHAR((AVG(action_seconds) || ' second')::interval, 'MI.SS') FROM event_table;