Hi,

I know that changing a CF's comparator is not officially supported. However, there is a post by Jonathan Ellis that implies it can be done (www.mail-archive.com/user@cassandra.apache.org/msg09502.html).

I assume that we'd have to change entries in the system.schema_* column families.

Has anyone successfully done this?

We want to change the comparator from BytesType to UTF8Type to make the move to CQL easier ("cannot parse 'foo' as hex bytes"). Our CFs were created back in the Cassandra 0.6.x days and are too large to be easily copied to new CFs with a new schema.

Many thanks in advance.

Christof

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