[Xapian-discuss] Incorrect get_matches_estimated() of Xapian::Mset

[Hightman(马明练)]

Olly Betts, Hello

======= 2007-09-20 14:27:00 您在来信中写道：=======

>On Thu, Sep 20, 2007 at 07:56:52PM +0800, Hightman(??????) wrote:
>
>If you want to ensure the estimate is correct below a certain value
>(e.g. to allow reliably generation of paging buttons in your UI), set
>the check_at_least parameter to Enquire::get_mset().  See the

  Though I used the third argument to set the check_at_least number, It still return 
  much more number than the exact number(about 5 times);

  But if the exact number is greater than estimated number, the new return value is more correct.

  Dosen't the third argument fixed the number greater than exact number?

>documentation for the details, or look at the code to Omega to see how
>it implements this.
>
>Cheers,
>    Olly

= = = = = = = = = = = = = = = = = = = =
			

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　　　　　　　　Hightman(马明练)
　　　　　　　　hightman at zuaa.zju.edu.cn
　　　　　　　　　　2007-09-20