Github user jeffoxenberg commented on the issue:
https://github.com/apache/nifi/pull/602
Is the test suite actually creating a cassandra instance, creating a table,
and executing the generated cql against it? I did some testing and was able to
get the original code to insert by changing my c* column data type to 'text'
but leaving it as 'timestamp' in Nifi, since Nifi was doing a conversion from
timestamp to text. I think you'll only run into the error when the column in
c* is of type timestamp, and I can't find where the test suite has that logic.
I think the test passes with the original code because after the timestamp
value is set as a string
[here](https://github.com/apache/nifi/blob/master/nifi-nar-bundles/nifi-cassandra-bundle/nifi-cassandra-processors/src/main/java/org/apache/nifi/processors/cassandra/PutCassandraQL.java#L318-L327),
it gets treated as a string for the rest of the query. It wouldn't be
validated as a timestamp until it actually gets inserted into a c* table with a
column of type timestamp (or run through the datastax TypeCodec, which the
original code bypasses for a few types), at which point the datastax driver
would error.
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