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https://issues.apache.org/jira/browse/HBASE-4626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13131086#comment-13131086
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Lars Hofhansl commented on HBASE-4626:
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Exactly!
There are a bunch subclasses of WritableByteArrayComparable to deal with, so I
refactored some code slightly.
The only funky thing is the NullComparator. All other comparators would fail
with an NPE if a null byte[] is passed (even before my change); so for this one
comparator I have the compareTo(byte[],int,int[]) method throw an
unsupportedOperationException.
I have a patch. Running tests now.
> Filters unnecessarily copy byte arrays...
> -----------------------------------------
>
> Key: HBASE-4626
> URL: https://issues.apache.org/jira/browse/HBASE-4626
> Project: HBase
> Issue Type: Bug
> Reporter: Lars Hofhansl
> Assignee: Lars Hofhansl
>
> Just looked at SingleCol and ValueFilter... And on every column compared they
> create a copy of the column and/or value portion of the KV.
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