udf for constants is executed many times

**Use case**
I have my UDF:
>CREATE OR REPLACE FUNCTION string2words AS (str) -> arrayDistinct(arraySort(arrayFilter(x -> x != '', arrayMap(x -> stem('ru', x), arrayMap(x -> stem('en', x), arrayMap(x -> stem('el', x), splitByRegexp('[^a-zA-ZА-Яа-я0-9α-ωΑ-ΩίϊΐόάέύϋΰήώΊΪΌΆΈΎΫΉΏ]+', lowerUTF8(str))))))))

When I use it in WHERE:
>WHERE hasAll(words, string2words('привет'))

It is executed many times and work too slow.

When I use it separately `SELECT string2words('привет');` and after `WHERE hasAll(words, ['привет'])` works faster in 3-4 times

**Describe the solution you'd like**

I woud like UDF is executed only once if all parameters of UDF are constants.