Strange exception with wildcard use

[Mark Woon <mo...@helix.stanford.edu>]

Hi all...

I'm getting a BooleanQuery$TooManyClauses exception and I'm not really 
sure why.  I only get it when I do a wild card search, and even then, 
not all the time.

Searching for "ca*" and "pa3*" works just fine, but "pa*" or "pa1*" 
fails with:

org.apache.lucene.search.BooleanQuery$TooManyClauses
	at org.apache.lucene.search.BooleanQuery.add(BooleanQuery.java:109)
	at org.apache.lucene.search.BooleanQuery.add(BooleanQuery.java:101)
	at org.apache.lucene.search.PrefixQuery.rewrite(PrefixQuery.java:85)
	at org.apache.lucene.search.IndexSearcher.rewrite(IndexSearcher.java:195)
	at org.apache.lucene.search.Query.weight(Query.java:120)
	at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:128)
	at org.apache.lucene.search.Hits.getMoreDocs(Hits.java:90)
	at org.apache.lucene.search.Hits.(Hits.java:80)
	at org.apache.lucene.search.Searcher.search(Searcher.java:71)
	at org.apache.lucene.search.Searcher.search(Searcher.java:65)


Does anyone have any idea what might be causing this?  I'm using the 
QueryParser to build my query for me and the SnowballAnalyzer and and 
IndexSearcher with to perform the search.  This is with what's currently 
in CVS.


Thanks,
-Mark

Re: Strange exception with wildcard use

[Mark Woon <mo...@helix.stanford.edu>]

So I've done some digging, and it looks like I can resolve this problem 
by setting the max clause count on BooleanQuery.  However, I'm not 
really sure what this affects.

Can anyone describe what this property controls?  Surely it was set to 
1024 for a reason...

Thanks,
-Mark