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https://issues.apache.org/jira/browse/CASSANDRA-11067?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15133154#comment-15133154
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Jon Haddad commented on CASSANDRA-11067:
----------------------------------------

I like to test this stuff by feel.  This feels perfectly reasonable to me 
(current behavior off the 11067 branch):

{code}
create table users ( id int primary key, first_name text, last_name text);

insert into users (id, first_name, last_name) VALUES (1, 'Jon', 'Haddad');
insert into users (id, first_name, last_name) values (2, 'Jonathan', 'Ellis');

create custom INDEX on users (first_name)
    USING 'org.apache.cassandra.index.sasi.SASIIndex'
    WITH OPTIONS = { 'analyzer_class': 
'org.apache.cassandra.index.sasi.analyzer.NonTokenizingAnalyzer', 
'case_sensitive':'false'};


cqlsh:test> select * from users where first_name = 'Jon';

     id | first_name | last_name
    ----+------------+-----------
      1 |        Jon |    Haddad

    (1 rows)

cqlsh:test> select * from users where first_name LIKE 'Jon';

 id | first_name | last_name
----+------------+-----------
  1 |        Jon |    Haddad

(1 rows)
cqlsh:test> select * from users where first_name LIKE 'Jon%';

 id | first_name | last_name
----+------------+-----------
  1 |        Jon |    Haddad
  2 |   Jonathan |     Ellis
{code}

Side note, trunk currently returns rows 1 & 2 for = queries, so the behavior 
is, IMO, significantly improved in this branch.

> 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 =.



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