Caleb Rackliffe created CASSANDRA-18615:
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Summary: 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
Reporter: Caleb Rackliffe
Assignee: Caleb Rackliffe
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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