SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Function count (children 1)
     ExpressionList (children 1)
      Identifier v
    Function sum (children 1)
     ExpressionList (children 1)
      Identifier v
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t_full_pk
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier k
     Literal UInt64_0
