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https://issues.apache.org/jira/browse/HBASE-21158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16850088#comment-16850088
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Andrew Purtell commented on HBASE-21158:
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Maybe the difference is due to 1.4.10 not being released yet with the change
included. Adding the OR condition in the Phoenix code is the right thing to do
given that HBase has decided the earlier behavior was a bug.
> Empty qualifier cell should not be returned if it does not match
> QualifierFilter
> --------------------------------------------------------------------------------
>
> Key: HBASE-21158
> URL: https://issues.apache.org/jira/browse/HBASE-21158
> Project: HBase
> Issue Type: Bug
> Components: Filters
> Affects Versions: 3.0.0, 2.2.0
> Reporter: Guangxu Cheng
> Assignee: Guangxu Cheng
> Priority: Critical
> Fix For: 3.0.0, 1.3.3, 1.2.8, 2.2.0, 1.4.8, 2.1.1, 2.0.3
>
> Attachments: HBASE-21158.branch-1.001.patch,
> HBASE-21158.master.001.patch, HBASE-21158.master.002.patch,
> HBASE-21158.master.003.patch, HBASE-21158.master.004.patch
>
>
> {code:xml}
> hbase(main):002:0> put 'testTable','testrow','f:testcol1','testvalue1'
> 0 row(s) in 0.0040 seconds
> hbase(main):003:0> put 'testTable','testrow','f:','testvalue2'
> 0 row(s) in 0.0070 seconds
> # get row with empty column f:, result is correct.
> hbase(main):004:0> scan 'testTable',{FILTER => "QualifierFilter (=,
> 'binary:')"}
> ROW COLUMN+CELL
>
>
> testrow column=f:,
> timestamp=1536218563581, value=testvalue2
>
> 1 row(s) in 0.0460 seconds
> # get row with column f:testcol1, result is incorrect.
> hbase(main):005:0> scan 'testTable',{FILTER => "QualifierFilter (=,
> 'binary:testcol1')"}
> ROW COLUMN+CELL
>
>
> testrow column=f:,
> timestamp=1536218563581, value=testvalue2
>
> testrow column=f:testcol1,
> timestamp=1536218550827, value=testvalue1
>
> 1 row(s) in 0.0070 seconds
> {code}
> As the above operation, when the row contains empty qualifier column, empty
> qualifier cell is always returned when using QualifierFilter.
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