Handle null elements in collections on the decode path

Description

CQL does not allow null elements in collections.

However, some queries might return such elements in the future. For example, as hinted in CASSANDRA-8877, we could eventually support SELECT TTL(some_list) on collection columns.

We should support null elements when decoding collections returned from the server.

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Olivier Michallat

Reporter

Olivier Michallat

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