Add metastore API method to get partition by name
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Key: HIVE-1132
URL: https://issues.apache.org/jira/browse/HIVE-1132
Project: Hadoop Hive
Issue Type: New Feature
Affects Versions: 0.6.0
Reporter: Paul Yang
Assignee: Paul Yang
Currently, get_partition_names returns the partition names in an escaped form
ie 'ds=2010-02-03/ts=2010-02-03
18%3A49%3A26/offset=0-3184760670135/instance=nfs/host=nfs'. In this case, the
colons have been replaced by %3A. The escaped form is necessary because the
partition column values could contain symbols such as '=' or '/' that would
interfere with parsing or have some other unwanted effects. See HIVE-883.
However, there is no way to directly retrieve the partition using the escaped
name because get_partition accepts a List<String> that requires the partition
column values to be in their original unescaped form. So the proposal is to add
get_partition_by_name() that directly accepts the partition name in the escaped
form.
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