Check the column type of complex type to prevent core dump in BE. ColumnReader will throw segmentation fault in the following case:
Change complex types in hive:
hive> create table struct_test(
id int,
sf struct<f1: int, f2: map<string, string>>) stored as parquet;
hive> insert into struct_test values
(1, named_struct('f1', 1, 'f2', str_to_map('1:s2,2:s2'))),
(2, named_struct('f1', 2, 'f2', str_to_map('k1:s3,k2:s4'))),
(3, named_struct('f1', 3, 'f2', str_to_map('k1:s5,k2:s6')));
hive> alter table struct_test change sf sf struct<f1:int, f2: string>;
7ca3be6d51