[Xapian-discuss] Random results for the same query

[Charlie Hull]

Steije van Schelt wrote:
> Hello,
> 
> I'm experiencing weird behaviour with the search results from Xapian.
> 
> For example, when I search for 'php' in the database I made (about
> 4.000.000 documents, 12 gb in size) I get about 562 results. When I
> change the offset in the TOPDOC argument in Omega to 20, I get 592
> results (and so on and so on...).
> 
> I've been searching the mailing list, the only post I found about it was:
> 
> http://thread.gmane.org/gmane.comp.search.xapian.general/2329
> 
> The weird thing is that if I disable all extra boolean terms (as stated
> in the discussion above) I get the same behaviour.
> 
> I've never experienced this before, it just occured today. Is my
> database corrupt or is there something weird going on in Xapian?

I think the key word here is 'about' as in 'about 562 results'. AFAIK to 
save time an exact number of results isn't calculated, so it's not 
surprising that you're getting different numbers each time.

Cheers

Charlie

> 
> Thanks in advance,
> 
> Steije van Schelt.
> 
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