InsertQuery   (children 2)
 Identifier table1
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 1)
     Function uniqState (children 1)
      ExpressionList (children 1)
       Identifier UserID
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier table2
