Cassandra: Using LongType

I'm trying to insert data into a ColumnFamily with "CompareWith" attribute "LongType". However, when trying to insert data under numerical keys, I get a thrift error.

When attempting the same operation with the cassandra-cli prog开发者_Go百科ram, I get the error "A long is exactly 8 bytes". How can I resolve this? Should I use a different comparison type?

Thanks

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the cli can't insert binary data.

there are examples in test/system/test_server.py of inserting Long data in python.

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Looks like I need to use http://uk3.php.net/manual/en/function.pack.php to pack the key into an 8-byte binary string

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The cassandra-cli program supports functions for the set command. (details from "help set;" in the cli)

With the following schema:

create column family Data 
 with key_validation_class = LongType
 and comparator = LongType
 and default_validation_class = LongType;

I can do the following in the cli

set Data[long(2)][long(22)]=long(1022);