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https://issues.apache.org/jira/browse/HBASE-6954?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Olson updated HBASE-6954:
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Attachment: ColumnPaginationFilterTest.java
> Column-counting filters can accept multiple versions of a column
> ----------------------------------------------------------------
>
> Key: HBASE-6954
> URL: https://issues.apache.org/jira/browse/HBASE-6954
> Project: HBase
> Issue Type: Bug
> Components: Filters
> Reporter: Andrew Olson
> Attachments: ColumnPaginationFilterTest.java
>
>
> It looks like the max version limit for a table or scanner is not applied to
> disregard older versions, prior to counting columns within a
> ColumnPaginationFilter or ColumnCountGetFilter. As a result, a Scan or Get
> can ultimately retrieve fewer than the requested number of columns when there
> is a sufficient number of existing columns to satisfy the request, if
> multiple versions of a column have been added to a row.
> A minimal test case demonstrating this behavior is attached.
> The javadoc for Get mentions 'Only Filter.filterKeyValue(KeyValue) is called
> AFTER all tests for ttl, column match, deletes and max versions have been
> run.'; for these two filters this behavior does not appear to be true, as
> flattening of multiple versions appears to occur after the filter has been
> applied.
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