[Xapian-tickets] [Xapian] #608: as_partial_query / as_wildcarded_query and limiting the expansion of terms

[Xapian]

#608: as_partial_query / as_wildcarded_query and limiting the expansion of terms
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 Reporter:  boomboo      |             Owner:  olly
     Type:  enhancement  |            Status:  assigned
 Priority:  normal       |         Milestone:  1.3.3
Component:  QueryParser  |           Version:  SVN trunk
 Severity:  normal       |        Resolution:
 Keywords:               |        Blocked By:
 Blocking:               |  Operating System:  All
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Changes (by olly):

 * version:   => SVN trunk


Comment:

 I merged the lazy wildcard support earlier today (which includes applying
 the wildcard expansion limit to partial terms), and I've just attached a
 patch which implements choosing the most frequent terms instead of given
 an exception.

 I think we probably want a way to choose between the exception and picking
 the most frequent terms, and probably the limit and exception/picking
 settings should be separate for partial and wildcard - picking the best N
 seems a good strategy for a partial expansion, but it will probably
 surprise users to find that a wildcard only expands to a subset of the
 terms it matches.

 Also need tests and docs.

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Ticket URL: <http://trac.xapian.org/ticket/608#comment:8>
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