Pavel Emelyanov 75e1d7ea74 large_data_handler: Prepare for stopped qctx ...

All the large data handler methods rely on global qctx thing to
write down its notes. This creates circular dependency:

query processor -> database -> large_data_handler -> qctx -> qp

In scylla this is not a technical problem, neither qctx nor the
query processor are stopped. It is a problem in cql_test_env
that stops everything, including resetting qctx to null. To avoid
tests stepping on nullptr qctx add the explicit check.

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>

2021-09-15 17:35:24 +03:00

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