% This is generated by ESQL's AbstractFunctionTestCase. Do not edit it. See ../README.md for how to regenerate it.
Parameters
field
: Column or literal for which to count the number of distinct values.
precision
: Precision threshold. Refer to AGG-COUNT-DISTINCT-APPROXIMATE
. The maximum supported value is 40000. Thresholds above this number will have the same effect as a threshold of 40000. The default value is 3000.