James Taylor updated PHOENIX-1160:
    Summary: Allow an index to be declared as immutable  (was: Allow mix of 
immutable and mutable indexes on the same table)

> Allow an index to be declared as immutable
> ------------------------------------------
>                 Key: PHOENIX-1160
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-1160
>             Project: Phoenix
>          Issue Type: Improvement
>            Reporter: James Taylor
>            Priority: Major
> Currently, a table must be marked as immutable, through the 
> IMMUTABLE_ROWS=true property specified at creation time. In this case, all 
> indexes added to the table are immutable, while without this property, all 
> indexes are mutable.
> Instead, we should support a mix of immutable and mutable indexes. We already 
> have an INDEX_TYPE field on our metadata row. We can add a new IMMUTABLE 
> keyword and specify an index is immutable like this:
> {code}
> CREATE IMMUTABLE INDEX foo ON bar(c2, c1);
> {code}
> It would be up to the application developer to ensure that only columns that 
> don't mutate are part of an immutable index (we already rely on this anyway).

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