VarDerefBytesImpl doc values prefix length may fall across two pages
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Key: LUCENE-3870
URL: https://issues.apache.org/jira/browse/LUCENE-3870
Project: Lucene - Java
Issue Type: Bug
Affects Versions: 4.0
Reporter: Michael McCandless
Fix For: 4.0
The VarDerefBytesImpl doc values encodes the unique byte[] with prefix (1 or 2
bytes) first, followed by bytes, so that it can use
PagedBytes.fillSliceWithPrefix.
It does this itself rather than using PagedBytes.copyUsingLengthPrefix...
The problem is, it can write an invalid 2 byte prefix spanning two blocks (ie,
last byte of block N and first byte of block N+1), which fillSliceWithPrefix
won't decode correctly.
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