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From googoo <liu...@gmail.com>
Subject Re: Multiple sort field
Date Wed, 18 Jul 2012 12:34:20 GMT
I don't think lucene will support multi sort.
If you look into org.apache.lucene.search.TopScoreDocCollector you may get
some feeling.
It use max heap to sort the document, and the score is one time calculate,
it it not first sort by time, then sort again by id. 

When lucene sort below documents:
record_1  201207170101 
record_2  201207170101 
record_3  201207170102 
record_4  201207170102 

first get record_1, and it score is 201207170101, then record_1 on top of
the heap
tehn get record_2, and it score is 201207170101, then will put record_2 
after record_1
then get record_3, and it score is 201207170102, this score > current top
value 201207170101, then the max heap change to record_3, record_1, record_2
last get record_3, and it score is 201207170102, is score = current top male
201207170102, , then the max heap change to record_3, record_4, record_1,
record_2




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