MEDIAN_TDIGEST
Computes the median of a numeric data sequence using the t-digest algorithm.
Caution: NULL values are not included in the calculation.
Analyze Syntax
func.median_tdigest(<expr>)
Analyze Examples
func.median_tdigest(table.score).alias('median_score')
| median_score |
|----------------|
| 85.0 |
SQL Syntax
MEDIAN_TDIGEST(<expr>)
Arguments
| Arguments | Description |
|---|---|
<expr> | Any numerical expression |
Return Type
Returns a value of the same data type as the input values.
SQL Examples
-- Create a table and insert sample data
CREATE TABLE exam_scores (
id INT,
student_id INT,
score INT
);
INSERT INTO exam_scores (id, student_id, score)
VALUES (1, 1, 80),
(2, 2, 90),
(3, 3, 75),
(4, 4, 95),
(5, 5, 85);
-- Calculate median exam score
SELECT MEDIAN_TDIGEST(score) AS median_score
FROM exam_scores;
| median_score |
|----------------|
| 85.0 |