Hi,   I have not followed the development of Impala lateley.If this i still a limitation you might try the following approach.Design the schema with an additional column with information about which rows holds information for a particular struct column and then use this additional column in the WHERE clause. Something like: name complex1 complex2 complex3 complex1 content NULL NULL complex3 NULL NULL content and then:   SELECT complex1.* FROM myTable WHERE name = 'complex1' Br, Petter ... View more