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https://issues.apache.org/jira/browse/CASSANDRA-18615?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17737352#comment-17737352
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Caleb Rackliffe commented on CASSANDRA-18615:
---------------------------------------------
btw, the 3 unit test failures are known/pre-existing, and will be fixed either
in CASSANDRA-18490 or CASSANDRA-18067.
> CREATE INDEX Modifications for Initial Release of SAI
> -----------------------------------------------------
>
> Key: CASSANDRA-18615
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18615
> Project: Cassandra
> Issue Type: Improvement
> Components: CQL/Syntax, Feature/SAI
> Reporter: Caleb Rackliffe
> Assignee: Caleb Rackliffe
> Priority: Normal
> Fix For: NA
>
> Time Spent: 3h 10m
> Remaining Estimate: 0h
>
> After a lengthy discussion on the dev list, the community seems to have
> arrived at the following list of TODOs before we release SAI in 5.0:
> 1.) CREATE INDEX should be expanded to support {{USING … WITH OPTIONS…}}
> Essentially, we should be able to do something like {{CREATE INDEX ON tbl(v)
> USING ’sai’ WITH OPTIONS = ...}} and {{CREATE INDEX ON tbl(v) USING
> ‘cassandra’}} as a more specific/complete way to emulate the current behavior
> of {{CREATE INDEX}}.
> 2.) Allow operators to configure, in the YAML, a.) whether an index
> implementation must be specified w/ USING and {{CREATE INDEX}} and b.) what
> the default implementation will be, if {{USING}} isn’t required.
> 3.) The defaults we ship w/ will avoid breaking existing {{CREATE INDEX}}
> usage. (i.e. A default is allowed, and that default will remain ‘cassandra’,
> or the legacy 2i)
> With all this in place, users should be able create SAI indexes w/ the
> simplest possible syntax, no defaults will change, and operators will have
> the ability to change defaults to favor SAI whenever they like.
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