[CASSANDRA-4450] CQL3: Allow preparing the consistency level, timestamp and ttl

• Type: Improvement
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Fix Version/s: 2.0 beta 1
• Labels: cql3
• Assignee: Sylvain Lebresne
• Reporter: Sylvain Lebresne

Authors

Sylvain Lebresne

Reviewers

Aleksey Yeschenko

• Created: 19/Jul/12 09:50
• Updated: 16/Apr/19 09:32
• Resolved: 28/May/13 09:09

Description

It could be useful to allow the preparation of the consitency level, the timestamp and the ttl. I.e. to allow:

UPDATE foo SET .. USING CONSISTENCY ? AND TIMESTAMP ? AND TTL ? 

A slight concern is that when preparing a statement we return the names of the prepared variables, but none of timestamp, ttl and consistency are reserved names currently, so returning those as names could conflict with a column name. We can either:

• make these reserved identifier (I have to add that I'm not a fan because at least for "timestamp", I think that's a potentially useful and common column name).
• use some specific special character to indicate those are not column names, like returning "[timestamp]", "[ttl]", "[consistency]".

Issue Links

• is duplicated by: CASSANDRA-6319 cql limit ?