[hbaseshell] output formatting
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Key: HADOOP-1789
URL: https://issues.apache.org/jira/browse/HADOOP-1789
Project: Hadoop
Issue Type: New Feature
Reporter: stack
Priority: Minor
hbaseshell currently outputs results using an ascii table.
This issue is about the hbaseshell offering a number of output formats beyond
plain ascii table. It would be grand if output formatting was pluggable so
folks could add new ones as they saw fit.
Currently, there is a painful need for unadorned output so folks can do a
'select page:content from webrepository where
row="http://apache.com/index.html";; and they get back the page content only.
Other output formats might be: csv, xml, or (x)html
Other related things to consider, but probably not as part of this issue, is
that if we output xml, then we should probably have a sympathetic input parser
for xml files (similar for csv). Let this issue just be about formatting
(another issue can be done to add pluggable input parsers). Where the output
lands should also be done in another issue: i.e. dependent on the command,
output probably default to stdout but folks should be able to designate an
output file (and target filesystem) as in
hdfs://master.hdfsnode.com:8990/output/dump.txt or file:///tmp/dump.txt or
s3://...., etc.
This issue is an outgrowth of HADOOP-1720
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