SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function ignore (children 1)
     ExpressionList (children 1)
      Identifier _part
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier tab_00712_1
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier b
     Literal UInt64_2
