I have an index over the titles to .mp3 songs. It is not unreasonable for the user to want to see the results from: "Show me Everything".
I understand that title:* is not a valid wildcard query. I understand that title:[a* TO z*] is a valid wildcard query. What I cannot understand is this behavior which throws no exceptions: title:[a* TO z*] returns 0 hits. title [a* TO m*] OR [n* TO z*] returns *almost* the correct answer -- one title [of approximately 1200] is missing. title:[a* TO m*] OR [m* TO z*] correctly returns all the available titles. I arrived at this 'bifurcation' solution because trial and error indicated that the problem was somehow related to the number of terms involved. In addition to doing the bifurcation, I also setMaxClauseCount up to 4096 from 1024, but that did not change the observed behavior; it is still necessary to present the Search engine with two smaller Ranges in lieu of a single large Range to get correct results. [Note, just for completeness, I have tested and confirmed that almost any bifurcation works. I can go from a-k and from k-z, just as well as the example shown. If, however, I try some very small range coupled with some longer range, such as a-t and t-z, it will revert to returning 0 hits.] [Another note, you can safely assume that the distribution of words in the titles of the music is not dramatically different from the distribution of words you would find in domains like email subjects, html page titles or books from Amazon lists.] There is obviously something *interesting* about the behavior of the Search engine that I have failed to grasp. I would appreciate any instruction. Thank you.
