title: Exporting Data using BigQuery multiple wildcard URIs
body: <p>Trying to export the table data in BigQuery to buckets created in Google Cloud Storage.</p>
  
  <p>When I export the table in BigQuery to GCS with single wildcard URI, it automatically splits the table into multiple sharded files (around 368 MB per file) and land in the designated buckets in GCS. </p>
  
  <p>Here is the command:</p>
  
  <pre><code>bq --nosync extract --destination_format=CSV '&lt;bq table&gt;' 'gs://&lt;gcs_bucket&gt;/*.csv'
  </code></pre>
  
  <p>The file size and number of files remains the same (around 368 MB per file) even with the use of multiple URIs:</p>
  
  <pre><code>bq --nosync extract --destination_format=CSV '&lt;bq table&gt;' 'gs://&lt;gcs_bucket&gt;/1-*.csv','gs://&lt;gcs_bucket&gt;/2-*.csv','gs://&lt;gcs_bucket&gt;/3-*.csv','gs://&lt;gcs_bucket&gt;/4-*.csv','gs://&lt;gcs_bucket&gt;/5-*.csv'
  </code></pre>
  
  <p>I am trying to figure out how to use multiple URIs option to reduce the file size.</p>