[Xapian-tickets] [Xapian] #267: Make autoflush in implicit transaction not commit.

[Xapian]

#267: Make autoflush in implicit transaction not commit.
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 Reporter:  richard      |        Owner:  olly    
     Type:  defect       |       Status:  new     
 Priority:  normal       |    Milestone:  1.1.0   
Component:  Library API  |      Version:  SVN HEAD
 Severity:  normal       |   Resolution:          
 Keywords:               |    Blockedby:  266     
 Platform:  All          |     Blocking:          
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Comment(by olly):

 On the flip side, people might see their database getting bigger and
 bigger, and have heard that Xapian allows searching while indexing, and
 wonder why they can't see any (new) documents.  Especially as this is the
 current behaviour.

 True, documentation could explain this, but then documentation currently
 says that changes are flushed automatically every 10000 documents (which
 your hypothetical user apparently hasn't read).

 Also, committing changes in larger batches will tend to bloat tables
 (especially the postlist table, but also others if documents are being
 updated) with unused blocks - the number of such blocks grows as the batch
 size does.

 Your suggested behaviour can currently be achieved by using a transaction.
 With this change, getting the current behaviour isn't so easy.  At
 present, you could count and commit explicitly every N changes, but that
 wouldn't allow the user to emulate more sophisticated flush criteria.

-- 
Ticket URL: <http://trac.xapian.org/ticket/267#comment:1>
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