title: AWS Glue Catalog unable to detect parquet files, creates root path as a single table instead
body: <p>I've a list of 500+ tables stored in AWS S3 in parquet format. The structure is as follows:</p>
  
  <pre><code>aws-bucket/
  └── parquet/
      └── table1/t1.parquet
      └── table2/t2.parquet
      └── table3/t3.parquet
      └── table4/t4.parquet
      └── table5/t5.parquet
      └── table6/t6.parquet
      └── table7/t7.parquet
      └── table8/t8.parquet
  </code></pre>
  
  <p>When I run a Glue Crawler on "s3://aws-bucket/parquet/", and try to create an Athena DB, it only creates a table called parquet, instead of creating all 500+ tables. I haven't tried with any customization on the crawler parameters.</p>
  
  <p>Please help.</p>