Tyler Hobbs created CASSANDRA-11466:
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Summary: Add Dynamic Type to the Native Protocol
Key: CASSANDRA-11466
URL: https://issues.apache.org/jira/browse/CASSANDRA-11466
Project: Cassandra
Issue Type: Improvement
Components: CQL
Reporter: Tyler Hobbs
There are several cases where the native protocol limits our ability to support
functions due to argument or result types that are only known at execution
time. For example, we can't support {{fromJson()}} in the selection clause or
{{toJson()}} outside of the selection clause.
To support these functions and other use cases, we should add a dynamic type to
the native protocol. The serialization format for this would be a {{<type>}}
field (i.e. a numeric typecode, as defined in the native protocol spec)
followed by the serialized value. When deserializing values, drivers would
first read the typecode to determine the type, then decode the remainder of the
bytes accordingly. How this type information is exposed to the end user is up
to the driver authors.
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