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967 B
slug | sidebar_position |
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/en/sql-reference/aggregate-functions/reference/avg | 112 |
avg
Calculates the arithmetic mean.
Syntax
avg(x)
Arguments
Returned value
- The arithmetic mean, always as Float64.
NaN
if the input parameterx
is empty.
Example
Query:
SELECT avg(x) FROM values('x Int8', 0, 1, 2, 3, 4, 5);
Result:
┌─avg(x)─┐
│ 2.5 │
└────────┘
Example
Create a temp table:
Query:
CREATE table test (t UInt8) ENGINE = Memory;
Get the arithmetic mean:
Query:
SELECT avg(t) FROM test;
Result:
┌─avg(x)─┐
│ nan │
└────────┘