[Xapian-discuss] query question

[Richard Boulton]

Alexander Lind wrote:
> Suppose we have two queries that look like this:
> query 1: "color:green AND shape:square"
> query 2: "(color:green) AND shape:square"
> 
> Should these two queries always return the same result set?  They don't 
> for me. On my index, query 1 returns 4 results and query 2 returns only 
> 3 results.
> The 4 records returned on query 1 are correct (they all have the correct 
> keywords set).
> The 3 records returned on query 2 are all from the 4 above, but one is 
> missing for no apparent reason.
> 
> Is this a bug, or am I missing something?

(You can get a description of the resulting queries by using the 
"get_description()" method on them.  This will show if there is a 
difference in the parsed queries - if there is no difference, the 
results should be identical.)

On my system, both these queries parse to the same thing (assuming I add 
a prefix for "color" and for "shape").  This is with SVN HEAD.  It's 
possible there's a bug causing this in an earlier version - which 
version of Xapian are you using?

-- 
Richard