Scott Carey created CASSANDRA-14533:
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Summary: Frozen Collections should allow TTL and WRITETIME access
Key: CASSANDRA-14533
URL: https://issues.apache.org/jira/browse/CASSANDRA-14533
Project: Cassandra
Issue Type: Bug
Components: CQL
Reporter: Scott Carey
It is clear why we can not simply access ttl and writetime of normal
collections, as the collection itself is made up of multiple cells (see
CASSANDRA-8877)
But frozen collections should allow it, since they are just one cell with the
whole collection stored in a simple blob.
Right now, I get an error message whether it is frozen or not:
{noformat}
cqlsh:testing> create table stuff (id int primary key, blah text, stuff
frozen<set<text>>);
cqlsh:testing> insert into stuff (id, blah, stuff) VALUES (1, 'blargh', {
'setstuff' });
cqlsh:testing> select id, blah, writetime(blah) from stuff;
id | blah | writetime(blah)
----+--------+------------------
1 | blargh | 1529512132503886
(1 rows)
cqlsh:testing> select id, stuff, writetime(stuff) from stuff;
InvalidRequest: Error from server: code=2200 [Invalid query] message="Cannot
use selection function writeTime on collections"
cqlsh:testing> select id, stuff from stuff;
id | stuff
----+--------------
1 | {'setstuff'}{noformat}
It is likewise not possible to get the timestamp on a frozen collection from
the java client.
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