removeIndexDef.index_type = org.apache.cassandra.avro.IndexType.KEYS;
removeIndexDef.name = ByteBuffer.wrap(new byte[] { 0 });
removeIndexDef.validation_class = BytesType.class.getName();
assert cfDef.column_metadata.remove(removeIndexDef);
cfm.apply(cfDef);
for (int i = 1; i < indexes.size(); i++)
assert cfm.getColumn_metadata().get(ByteBuffer.wrap(new byte[] { 1 })) != null;
assert cfm.getColumn_metadata().get(ByteBuffer.wrap(new byte[] { 0 })) == null;
assert cfm.getColumn_metadata().get(ByteBuffer.wrap(new byte[] { 5 })) != null;