This function requires one arguments just as ARRAY_AGG(col) and col means the column whose values you want to aggregate.
This function Aggregates the values including NULL in a column into an array and returns a value of the ARRAY data type.
Currently, there are some useless includes in the codebase. We can use a tool named include-what-you-use to optimize these includes. By using a strict include-what-you-use policy, we can get lots of benefits from it.
Enhance aggregate function `collect_set` and `collect_list` to support optional `max_size` param,
which enables to limit the number of elements in result array.
add codes for collect_list and collect_set and update regression output, before output format for ARRAY(string) already changed.
Co-authored-by: cambyzju <zhuxiaoli01@baidu.com>
