title: How to load multiple files (same schema) into a table in BigQuery?
body: <p>I have a folder of csv files with the same schema that I want to load into a bigquery table. </p>
  
  <p>Is there an option to give folder path as the input to BQ command to load into bigquery table? I'm interested to know if it can be done without iterating over the files or merging the input files at the source.</p>