ES|QL MV_MEDIAN function
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Serverless
Generally available
Stack
Generally available
Calculates the median of all values in a multi-value field.
number-
Expression that can be null, a single value, or multiple values.
Converts a multivalued field into a single valued field containing the median value.
| number | result |
|---|---|
| double | double |
| integer | integer |
| long | long |
| unsigned_long | unsigned_long |
ROW a=[3, 5, 1]
| EVAL median_a = MV_MEDIAN(a)
| a:integer | median_a:integer |
|---|---|
| [3, 5, 1] | 3 |
If the row has an even number of values for a column, the result will be the average of the middle two entries. If the column is not floating point, the average rounds down:
ROW a=[3, 7, 1, 6]
| EVAL median_a = MV_MEDIAN(a)
| a:integer | median_a:integer |
|---|---|
| [3, 7, 1, 6] | 4 |