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https://issues.apache.org/jira/browse/CASSANDRA-4924?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13494271#comment-13494271
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Edward Capriolo commented on CASSANDRA-4924:
--------------------------------------------
{quote}
I see your point about not letting 2012 Hector (or astyanax ) do the wrong
thing and bork any CQL3 data set it thinks it's safely using. I was thinking
skirting around the issue and exposing it thrift was OK, but now, thinking more
about it, I'm less convinced of that. Having the CLI be able to have access to
CQL3 data, however, I think is the safest route as far as a transition to CQL3.
{quote}
http://www.datastax.com/dev/blog/thrift-to-cql3
{quote}
But the thrift API is not going anywhere. Existing applications do not have to
upgrade to CQL3.
{quote}
We don't have to upgrade, but without some schema hints it becomes increasingly
more difficult to work with. This is more like a meet-me-half-way deal. To use
thrift I need some clue as to what the thrift schema looks like. validation
exceptions will help me with the rest.
> Make CQL 3 data accessible via thrift.
> --------------------------------------
>
> Key: CASSANDRA-4924
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4924
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Affects Versions: 1.2.0 beta 1
> Reporter: amorton
> Assignee: Jonathan Ellis
> Labels: cli, cql
> Fix For: 1.2.0 rc1
>
>
> Following the changes from CASSANDRA-4377 data created using CQL 3 is not
> visible via the thrift interface.
> This goes against the spirit of many comments by the project that "the thrift
> API is not going away". These statements and ones such as "Internally, both
> CQL3 and thrift use the same storage engine, so all future improvements to
> this engine will impact both of them equally."
> (http://www.datastax.com/dev/blog/thrift-to-cql3) and the CQL3 and thrift
> examples given here
> http://www.datastax.com/dev/blog/cql3-for-cassandra-experts gave the
> impression CQL 3 was a layer on top of the core storage engine. It now
> appears to be an incompatible format change.
> It makes it impossible to explain to existing using users how CQL 3 stores
> it's data.
> It also creates an all or nothing approach to trying CQL 3.
> My request is to make all data written by CQL 3 readable via the thrift API.
> An example of using the current 1.2 trunk is below:
> {noformat}
> cqlsh:cass_college> CREATE TABLE UserTweets
> ... (
> ... tweet_id bigint,
> ... user_name text,
> ... body text,
> ... timestamp timestamp,
> ... PRIMARY KEY (user_name, tweet_id)
> ... );
> cqlsh:cass_college> INSERT INTO
> ... UserTweets
> ... (tweet_id, body, user_name, timestamp)
> ... VALUES
> ... (1, 'The Tweet', 'fred', 1352150816917);
> cqlsh:cass_college>
> cqlsh:cass_college>
> cqlsh:cass_college> select * from UserTweets;
> user_name | tweet_id | body | timestamp
> -----------+----------+-----------+--------------------------
> fred | 1 | The Tweet | 2012-11-06 10:26:56+1300
> {noformat}
> and in the CLI
> {noformat}
> [default@cass_college] show schema;
> create keyspace cass_college
> with placement_strategy = 'SimpleStrategy'
> and strategy_options = {replication_factor : 3}
> and durable_writes = true;
> use cass_college;
> [default@cass_college] list UserTweets;
> UserTweets not found in current keyspace.
> [default@cass_college]
> {noformat}
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