Comment on page
APPROX_COUNT_DISTINCT
Approximates the number of distinct non-null input values.
This function is used as an approximation of
COUNT(DISTINCT ...)
in order to improve performance. It should be used when there are relatively few (under 1 million) rows, and where the total number of distinct values is high.APPROX_COUNT_DISTINCT(X)
Type: any type
The values to be counted.
Type:
bigint
Returns the approximate number of distinct non-null input values.
If all input values are null, zero is returned.
CREATE JOB function_operator_example
ADD_MISSING_COLUMNS = true
AS INSERT INTO default_glue_catalog.upsolver_samples.orders_transformed_data MAP_COLUMNS_BY_NAME
SELECT
LOWER(ordertype) as ordertype,
ROUND(AVG(nettotal), 2) as avgtotal
FROM default_glue_catalog.upsolver_samples.orders_raw_data
WHERE $commit_time BETWEEN run_start_time() - PARSE_DURATION('1d') AND run_end_time()
GROUP BY 1
LIMIT 2;
ordertype | avgtotal |
---|---|
pickup | 1062.14 |
shipping | 1061.91 |
Last modified 1yr ago