SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function count (children 1)
     ExpressionList
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test_tuple
   Function and (children 1)
    ExpressionList (children 2)
     Function greater (children 1)
      ExpressionList (children 2)
       Function toDate (children 1)
        ExpressionList (children 1)
         Identifier p
       Literal \'2020-09-01\'
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier i
       Literal UInt64_1
