Cql DELETE has no effect when records are created over Thrift

[romitagl]

Hello all,

when executing a Cql delete for some records created through a Thrift driver the cpp driver doesn't report any error but the query has no effect.
Same query executed through Cqlsh deletes the records.

The same code works perfectly when using only Thrift or Cpp-driver for INSERT and DELETE. Issue replicated only in mixed mode.

Env. used:
- apache-cassandra-2.1.17
- Cpp driver 2.7

Is anyone aware of problems using Cpp-driver with legacy Thrift?

Many thanks