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https://issues.apache.org/jira/browse/CASSANDRA-356?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12741176#action_12741176
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Edward Ribeiro commented on CASSANDRA-356:
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QueryPath's toString() tries to print two byte arrays: superColumnName and
columnName. Well, if you wrap them with new String(<field-name>) then the JVM
will use the machine's default CharSet to convert the byte array to String
(already printing the memory address).
> Count parameter has no effect on subcolumns.
> --------------------------------------------
>
> Key: CASSANDRA-356
> URL: https://issues.apache.org/jira/browse/CASSANDRA-356
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Reporter: Evan Weaver
> Attachments:
> 0001-CASSANDRA-356-rename-clean-up-collectColumns-methods.txt,
> 0002-use-the-existing-collectReducedColumns-api-to-make-sub.txt
>
>
> I send count=1:
> ["get_slice", "Twitter", "test_get_super_sub_keys_with_count",
> <CassandraThrift::ColumnParent column_family:"StatusRelationships",
> super_column:"user_timelines">, <CassandraThrift::SlicePredicate
> slice_range:<CassandraThrift::SliceRange start:"", finish:"",
> is_ascending:true, count:1>>, 1]
> The server says:
> weakreadlocal reading SliceFromReadCommand(table='Twitter',
> key='test_get_super_sub_keys_with_count',
> column_parent='QueryPath(columnFamilyName='StatusRelationships',
> superColumnName='[...@3def3b56', columnName='null')', start='', finish='',
> isAscending=true, count=1)
> But I get back two items:
> {[<Cassandra::UUID#13699890>,
> "v1"]=>nil,
> [<Cassandra::UUID#13699880>,
> "v3"]=>nil}
> Incidentally, the debug output value for "superColumnName" is not correct.
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