On 20/05/11 19:26, Steven A Rowe wrote:
cat +dog -fox
Selects documents which must contain "dog" and must not contain "fox".
Documents will rank higher if "cat" is present, but it is not required."
I would have expected such behaviour, whatever "Default Operator" as
been defined.
But it seems that I need to use the Default Operator OR to have this
behaviour, which breaks our current requirement (we want default
operator AND if no operators are precised in the query).
Restating: you want default AND behavior when the query contains no operators,
and default OR behavior when the query *does* contain operators.
This is not supported by the Lucene QueryParser.
Ok,
IS there anyway to achieve this ? Or do I need to extend myself the
queryparser contrib ?
A workaround may be to simply look for "+" and "-" in the query under one of the following
conditions: preceded either by "(" or " ", or at the beginning of the string, e.g. using a regex
like /(?:^|[\s(])[+-]/, and if you find a match, use default OR operator, and if not, use default AND operator?
Ok, thanks for the workaround.
--
Renaud Delbru
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