title: Dataset shows only 5 event tables after re-linking Firebase with another Google Analytics account
body: <p>Recently unlinked and re-linked a Firebase project with a different Google Analytics account.
  The BigQuery integration configured to export GA data created the new dataset and data started populating into that.</p>
  <p>The old dataset corresponding to the unlinked, &quot;default&quot; GA account, which contained ~2 years of data is still accessible in the BigQuery UI, however only the 5 most recent <code>event_</code> tables are visible in the dataset. (5 days worth of event data)</p>
  <p>Is it possible to extract historical data from the old, unlinked dataset?</p>