Thanks for you reply,firstly. So many or query is to monitor the
term.One scene is that:if i want to know cities of a province and events that
happens, I may instantiate the query like "(California or NewYork or
SanFransico.... or SomePlace) and (Pollution or Criminal ... or Alcohol)".So,
the long query happens...I hope i have describe the question
clearly.----------------
At 2012-05-08 18:44:13,"Li Li" <fancye...@gmail.com> wrote:
>a disjunction (or) query of so many terms is indeed slow.
>can u describe your real problem? why you should the disjunction
>results of so many terms?
>
>
>
>On Sun, May 6, 2012 at 9:57 PM, qibaoy...@126.com <qibaoy...@126.com> wrote:
>> Hi,
>> I met a problem about how to search many keywords in about 5,000,000
>> documents.For example the query may be like "(a1 or a2 or a3 ....a200) and
>> (b1 or b2 or b3 or b4 ..... b400)",I found it will take vey long
>> time(40seconds) to get the the answer in only one field(Title field),and JVM
>> will throw OutMemory error in more fields(title field plus content
>> field).Any suggestions or good idea to solve this problem?thanks in advance.
>>
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