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Trying to find a way to easily transfer all the rows from a Cassandra ColumnFamily/Table to another.

The COPY command, as I understand, is a good option. However, as it dumps all the data to .csv on disk and then loads it back, I can't help but wonder if there is a better way to do it in-engine.

A specific example of what I mean would be the INSERT * FROM my_table INTO my_other_table available in many SQL databases. Of course, I realize that Cassandra is NoSQL and therefore does not to work the same way - but it seems like something which might be available.

What is a good way to accomplish this?

Thanks very much!

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2 Answers 2

cqlsh -k mykeyspace -e 'COPY fromTable(columnNames) TO STDOUT' | head -n -1 | 
cqlsh -k mykeyspace -e 'COPY toTable(columnNames) FROM STDIN'
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Thanks, this looks interesting. However, I'd be concerned about character escaping and other issues, especially when dealing with certain types of data. Is that a concern at all? –  Juan Carlos Coto Aug 19 '14 at 19:04

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