[ 
https://issues.apache.org/jira/browse/CASSANDRA-11067?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15131208#comment-15131208
 ] 

Jonathan Ellis commented on CASSANDRA-11067:
--------------------------------------------

I'm still uneasy about making = a synonym for LIKE.  Every database I can think 
of treats = as full equality.  I'm pretty sure that will surprise people.

I think we should reject = queries against indexes that aren't going to 
actually give equality semantics, and require using LIKE instead.

(I'm slightly uneasy about overloading LIKE as well, which is why originally I 
proposed something new like MATCHES.  But LIKE already tends to vary from 
product to product so on balance I'm okay with abusing it a little more.)


> Improve SASI syntax
> -------------------
>
>                 Key: CASSANDRA-11067
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11067
>             Project: Cassandra
>          Issue Type: Task
>          Components: CQL
>            Reporter: Jonathan Ellis
>            Assignee: Pavel Yaskevich
>             Fix For: 3.4
>
>
> I think everyone agrees that a LIKE operator would be ideal, but that's 
> probably not in scope for an initial 3.4 release.
> Still, I'm uncomfortable with the initial approach of overloading = to mean 
> "satisfies index expression."  The problem is that it will be very difficult 
> to back out of this behavior once people are using it.
> I propose adding a new operator in the interim instead.  Call it MATCHES, 
> maybe.  With the exact same behavior that SASI currently exposes, just with a 
> separate operator rather than being rolled into =.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Reply via email to