// This is generated by ESQL's AbstractFunctionTestCase. Do no edit it. See ../README.md for how to regenerate it.

*Examples*

[source.merge.styled,esql]
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include::{esql-specs}/stats_count_distinct.csv-spec[tag=count-distinct]
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[%header.monospaced.styled,format=dsv,separator=|]
|===
include::{esql-specs}/stats_count_distinct.csv-spec[tag=count-distinct-result]
|===
With the optional second parameter to configure the precision threshold
[source.merge.styled,esql]
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include::{esql-specs}/stats_count_distinct.csv-spec[tag=count-distinct-precision]
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[%header.monospaced.styled,format=dsv,separator=|]
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include::{esql-specs}/stats_count_distinct.csv-spec[tag=count-distinct-precision-result]
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The expression can use inline functions. This example splits a string into multiple values using the `SPLIT` function and counts the unique values
[source.merge.styled,esql]
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include::{esql-specs}/stats_count_distinct.csv-spec[tag=docsCountDistinctWithExpression]
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[%header.monospaced.styled,format=dsv,separator=|]
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include::{esql-specs}/stats_count_distinct.csv-spec[tag=docsCountDistinctWithExpression-result]
|===