Oh right frozen vs unfrozen.
On Mon, Dec 9, 2019 at 2:23 PM DuyHai Doan wrote:
> It depends on.. Latest version of Cassandra allows unfrozen UDT. The
> individual fields of UDT are updated atomically and they are stored
> effectively in distinct physical columns inside the partition, thus
> appl
It depends on.. Latest version of Cassandra allows unfrozen UDT. The
individual fields of UDT are updated atomically and they are stored
effectively in distinct physical columns inside the partition, thus
applying ttl() on them makes sense. I'm not sure however if the CQL parser
allows this syntax
I could be wrong, but UDTs I think are written (and overwritten) as one
unit, so the notion of a TTL on a UDT field doesn't exist, the TTL is
applied to the overall structure.
Think of it like a serialized json object with multiple fields. To update a
field they deserialize the json, then reserial
When I run the command 'select ttl(udt_field) from table; I'm getting an error
'InvalidRequest: Error from server: code=2200 [Invalid query] message="Cannot
use selection function ttl on collections"'. How can I get the TTL from a UDT
field?
Mark Furlong
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W
