Returns a list of the distinct values of the specified key as a Set. Documents that do not include the requested key are ignored. Distinct Operation does not behave as expected - https://docs.datastax.com/en/astra-db-serverless/api-reference/document-methods/find-distinct-values.html#find-distinct-value[…]an-index-in-an-array - [https://docs.datastax.com/en/astra-db-serverless/api-reference/document-methods/find-distinct-values.html#find-distinct-value[…]an-index-in-an-array](https://docs.datastax.com/en/astra-db-serverless/api-reference/document-methods/find-distinct-values.html#find-distinct-values-of-an-index-in-an-array) - [https://docs.datastax.com/en/astra-db-serverless/api-reference/row-methods/find-distinct-values.html#find-distinct-values-o[…]-entry-in-a-map-column](https://docs.datastax.com/en/astra-db-serverless/api-reference/row-methods/find-distinct-values.html#find-distinct-values-of-an-entry-in-a-map-column) - [https://docs.datastax.com/en/astra-db-serverless/api-reference/row-methods/find-distinct-values.html#find-distinct-values-o[…]index-in-a-list-column](https://docs.datastax.com/en/astra-db-serverless/api-reference/row-methods/find-distinct-values.html#find-distinct-values-of-an-index-in-a-list-column)