Is there an existing issue for the same feature request?

• I have checked the existing issues.

Is your feature request related to a problem?

No response

Describe the feature you'd like

Support new column data type: variable-length multidimensional arrays.
For example:
ARRAY(INT) works like std::vector<int> in C++
ARRAY(ARRAY(INT)) works like std::vector<std::vector<int>> in C++

Describe implementation you've considered

No response

Documentation, adoption, use case

No response

Additional information

No response