SQL: Wrong column name in case of a function without alias that has computable content

[astefan]

Best exemplified by an example: SELECT CHAR(emp_no % 10000) FROM "test_emp";
The result will have the column name CHAR(((emp_no{f}#14) % 10000)). It should be CHAR((emp_no % 10000)).

[elasticmachine]

Pinging @elastic/es-search-aggs