SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    Function sum (children 1)
     ExpressionList (children 1)
      Identifier b
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t_index_hint
   Function and (children 1)
    ExpressionList (children 3)
     Function indexHint (children 1)
      ExpressionList (children 1)
       Function and (children 1)
        ExpressionList (children 2)
         Function greaterOrEquals (children 1)
          ExpressionList (children 2)
           Identifier a
           Literal UInt64_100
         Function less (children 1)
          ExpressionList (children 2)
           Identifier a
           Literal UInt64_200
     Function greaterOrEquals (children 1)
      ExpressionList (children 2)
       Identifier b
       Literal UInt64_100
     Function less (children 1)
      ExpressionList (children 2)
       Identifier b
       Literal UInt64_200
   Set
