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Posted to issues@hbase.apache.org by "Todd Lipcon (JIRA)" <ji...@apache.org> on 2011/09/10 01:26:08 UTC

[jira] [Commented] (HBASE-4364) Filters applied to columns not in the selected column list are ignored

    [ https://issues.apache.org/jira/browse/HBASE-4364?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13101641#comment-13101641 ] 

Todd Lipcon commented on HBASE-4364:
------------------------------------

Apparently this is actually known behavior according to SingleColumnValueFilter. From the JavaDoc:
{noformat}
When using this filter on a {@link Scan} with specified
 * inputs, the column to be tested should also be added as input (otherwise
 * the filter will regard the column as missing).
{noformat}
IMO, it's a bug, though, not a feature! Filters with requirements like this should automatically push their column requirements through to the ExplicitColumnTracker.

> Filters applied to columns not in the selected column list are ignored
> ----------------------------------------------------------------------
>
>                 Key: HBASE-4364
>                 URL: https://issues.apache.org/jira/browse/HBASE-4364
>             Project: HBase
>          Issue Type: Bug
>          Components: filters
>    Affects Versions: 0.90.4, 0.92.0
>            Reporter: Todd Lipcon
>            Priority: Critical
>
> For a scan, if you select some set of columns using addColumns(), and then apply a SingleColumnValueFilter that restricts the results based on some other columns which aren't selected, then those filter conditions are ignored.

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