delimiters for nested structures

[Dilip Joseph]

Hello,

What are the delimiters for data to be loaded into a table with nested
arrays, structs, maps etc?  For example:

CREATE TABLE nested (   s1 STRUCT<name:STRING, age: INT>,
                                        a1 ARRAY<STRUCT<x:INT, y:INT>>,
                                        b1 MAP<STRING, ARRAY<INT>>
                                 )

Should I write a custom SerDe for this?

Thank you,

Dilip