On 1 Nov 2005, at 01:43, tcorbet wrote:
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.
That last one is NOT a valid wildcard query. RangeQuery does not
also do wildcards.
What I cannot understand is this behavior which
throws no exceptions:
title:[a* TO z*] returns 0 hits.
This is literally searching for "a*" through "z*", with the asterisk
being literal, not a wildcard.
title [a* TO m*] OR [n* TO z*] returns *almost* the
correct answer -- one title [of approximately 1200] is missing.
Is that your exact query? Maybe you're finding "title"?
title:[a* TO m*] OR [m* TO z*] correctly returns
all the available titles.
Maybe this has to do with your default field, if that is your exact
query. [m* TO z*] is going to the default field for QueryParser, not
the title field.
There is obviously something *interesting* about the
behavior of the Search engine that I have failed to
grasp. I would appreciate any instruction.
To get a range from a* TO z* you don't need a wildcard character at
all.... title:[a TO z] is close, but it would miss zebra, etc. You'd
need to leave the end of the range open. You could use title:[a TO
zzzzzzzz] or something like that. But again, RangeQuery does not
deal with wildcard characters at all, and treats them literally.
Erik
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