Canvas Data 2 Object Processing

Community Member

I've been tasked with extracting various tables from Canvas to insert the data into another relational database.  Per specifications, the output type for the files needs to be parquet.  When I retrieve the output documents from the Canvas Data 2 API it appears that the first object in S3 is a schema definition for the table.  Is it safe to make the assumption that the first object will always be a schema definition?  The reason I ask is that I'm trying to configuration my ETL jobs to handle these files in a repeatable way and I need a way to identify which files need to be omitted from processing.