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From "Tim Sell (JIRA)" <j...@apache.org>
Subject [jira] Reopened: (HBASE-889) The current Thrift API does not allow a new scanner to be created without supplying a column list unlike the other APIs.
Date Sat, 24 Jan 2009 20:41:59 GMT

     [ https://issues.apache.org/jira/browse/HBASE-889?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tim Sell reopened HBASE-889:
----------------------------


I was wrong, this wasn't fixed by HBASE-1142 after all. I didn't test it properly. Sorry.
You could pass it an empty list, but the scanner would just select zero columns.

Attached is a patch that addresses this, it includes a getAllColumns function which looks
them up from the table descriptor.

I'm not convinced this is how it should be done though, because the shell has similar code.
Presumably so does the REST api. Maybe the HTable.getScanner functions should do this themselves
if passed null or an empty list for columns?

> The current Thrift API does not allow a new scanner to be created without supplying a
column list unlike the other APIs.
> ------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-889
>                 URL: https://issues.apache.org/jira/browse/HBASE-889
>             Project: Hadoop HBase
>          Issue Type: Bug
>          Components: thrift
>    Affects Versions: 0.2.0, 0.2.1
>            Reporter: Charlie Mason
>            Assignee: Tim Sell
>             Fix For: 0.20.0
>
>         Attachments: HBASE-889v1.patch
>
>
> The current Thrift API does not allow a new scanner to be created without supplying a
column list, unlike the REST api. I posted this on the HBase-Users mailing list. Others concurred
that it appears to have been an oversight in the Thrift API. 
> Its quite significant as there is no easy work around, unless you already know which
the column families names then list them all when you open the scanner.

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