0 position increment not properly supported for the first token
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Key: LUCENE-1330
URL: https://issues.apache.org/jira/browse/LUCENE-1330
Project: Lucene - Java
Issue Type: Bug
Components: Javadocs, Store
Reporter: Moti Nisenson
Setting a position increment of 0 for the first token in a field results in its
"absolute position" (as well as increment) being read back later as
Integer.MIN_VALUE.
This is a result of how the information gets written out in DocumentsWriter:
position should not be updated using += t.getPositionIncrement() - 1; and then
always ++'ed in addPosition. It would be much simpler just to update it using
t.getPositionIncrement().
While this is fairly easy to fix in DocumentsWriter, one could just update the
documentation for Token.setPositionIncrement() to indicate that for indexing
purposes the first Token in a field must have a positive position increment.
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