DescribeQuery (children 1)
 TableExpression (children 1)
  Function format (children 1)
   ExpressionList (children 2)
    Identifier CSV
    Literal \'"{\\\'date1\\\' : \\\'2020-01-01 00:00:00\\\', \\\'date2\\\' : \\\'2020-01-01\\\'}"\'
