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 test1
   Function greater (children 1)
    ExpressionList (children 2)
     Identifier p
     Function toDateTime (children 1)
      ExpressionList (children 1)
       Literal \'2020-09-01 10:00:00\'
