container_id includes the following types:
- DOUBLE PRECISION
- out_container_id: The same type and value as the container_id input column. out_container_id identifies the Object Container File that the Avro value came from.
- avro_object_id: Each Avro value from a container is numbered from 0 to n-1, where n is the number of Avro values within the Object Container File. The output column is type INTEGER.
- avro_val: The Avro Dataset value.
The Object Container File can be uncompressed (null codec) or compressed (deflate codec). The schema within the Object Container File is limited to 16 MB, and the uncompressed size of any file data block within the Object Container file is also limited to 16 MB.