ProtoSchema describes the schema of the serialized protocol
buffer data rows.
Attribute
Name
Description
proto_descriptor
google.protobuf.descriptor_pb2.DescriptorProto
Descriptor for input message. The provided descriptor must
be self contained, such that data rows sent can be fully
decoded using only the single descriptor. For data rows that
are compositions of multiple independent messages, this
means the descriptor may need to be transformed to only use
nested types:
https://developers.google.com/protocol-buffers/docs/proto#nested
For additional information for how proto types and values
map onto BigQuery see:
https://cloud.google.com/bigquery/docs/write-api#data_type_conversions
