ES|QL functions have annotations to describe function signatures, including accepted and returned types.
For regular, non-aggregate functions, these annotations are tested and compared with test results.
For aggregate functions there are no specific tests for this; we should add them.
ES|QL functions have annotations to describe function signatures, including accepted and returned types.
For regular, non-aggregate functions, these annotations are tested and compared with test results. For aggregate functions there are no specific tests for this; we should add them.