The code correctly reflects its designed semantics:
numBufferedDeleteTerms is a simple sum of terms passed to
updateDocument or deleteDocuments.
If the first of two successive calls to the same term should be
considered no op if no docs were added in between, shouldn't the first
also be considered no op if the docs added in between do not contain
the term? Whether a doc contains a term, however, can only be
determined at the time of actual deletion for performance reasons.
Thus I think the original semantics is cleaner.
Ning
On 2/21/07, Doron Cohen (JIRA) <[EMAIL PROTECTED]> wrote:
bufferDeleteTerm in IndexWriter might flush prematurely
-------------------------------------------------------
Key: LUCENE-808
URL: https://issues.apache.org/jira/browse/LUCENE-808
Project: Lucene - Java
Issue Type: Bug
Components: Index
Affects Versions: 2.1
Reporter: Doron Cohen
Successive calls to remove-by-the-same-term would increment
numBufferedDeleteTerms
although all but the first are no op if no docs were added in between. Hence
deletes would
be flushed too soon.
It is a minor problem, should be rare, but it seems cleaner to fix this.
Attached patch also fixes TestIndexWriterDelete.testNonRAMDelete() which somehow
relied on this behavior. All tests pass.
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