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Michael McCandless commented on LUCENE-1194: -------------------------------------------- {quote} In 3.0, is the plan to default autoCommit to false or to disable autoCommit entirely? The latter, right? {quote} Yes, the latter. > Add deleteByQuery to IndexWriter > -------------------------------- > > Key: LUCENE-1194 > URL: https://issues.apache.org/jira/browse/LUCENE-1194 > Project: Lucene - Java > Issue Type: New Feature > Reporter: Michael McCandless > Assignee: Michael McCandless > Priority: Minor > Fix For: 2.4 > > Attachments: LUCENE-1194.patch > > > This has been discussed several times recently: > http://markmail.org/message/awlt4lmk3533epbe > http://www.gossamer-threads.com/lists/lucene/java-user/57384#57384 > If we add deleteByQuery to IndexWriter then this is a big step towards > allowing IndexReader to be readonly. > I took the approach suggested in that first thread: I buffer delete > queries just like we now buffer delete terms, holding the max docID > that the delete should apply to. > Then, I also decoupled flushing deletes (mapping term or query --> > actual docIDs that need deleting) from flushing added documents, and > now I flush deletes only when a merge is started, or on commit() or > close(). SegmentMerger now exports the docID map it used when > merging, and I use that to renumber the max docIDs of all pending > deletes. > Finally, I turned off tracking of memory usage of pending deletes > since they now live beyond each flush. Deletes are now only > explicitly flushed if you set maxBufferedDeleteTerms to something > other than DISABLE_AUTO_FLUSH. Otherwise they are flushed at the > start of every merge. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]