SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test
   Function greaterOrEquals (children 1)
    ExpressionList (children 2)
     Identifier timestamp
     Literal \'2020-10-15\'
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier timestamp
