DescribeQuery (children 2)
 TableExpression (children 1)
  Function s3 (children 1)
   ExpressionList (children 3)
    Identifier s3_conn
    Function equals (children 1)
     ExpressionList (children 2)
      Identifier filename
      Literal \'03631/**.parquet\'
    Function equals (children 1)
     ExpressionList (children 2)
      Identifier format
      Identifier RawBLOB
 Set
