Note that a bitmap scan or multi-pass indexscan (OR clause scan) has NIL
pathkeys since we can say nothing about the overall order of its result.


It's seems to me that multi-pass indexscan was removed after introducing 
bitmapscan.
--
Teodor Sigaev                                   E-mail: [EMAIL PROTECTED]
                                                   WWW: http://www.sigaev.ru/

---------------------------(end of broadcast)---------------------------
TIP 9: In versions below 8.0, the planner will ignore your desire to
      choose an index scan if your joining column's datatypes do not
      match

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