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https://issues.apache.org/jira/browse/CALCITE-1104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15184514#comment-15184514
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Amogh Margoor commented on CALCITE-1104:
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[~julianhyde] [~michaelmior] Currently we are supporting only comparison
operators (check SqlKind.COMPARISION). Based on request for Cassandra, I have
extended the support for IS_NULL and IS_NOT_NULL: JIRA - CALCITE-1130, PR:
https://github.com/apache/calcite/pull/207. Michael, Can you check if my patch
unblocks you ?
Will take care of issues raised by [~vrajat] in a separate JIRA and this should
not be hopefully blocking this JIRA (1104)
> Materialized view support for Cassandra adapter
> -----------------------------------------------
>
> Key: CALCITE-1104
> URL: https://issues.apache.org/jira/browse/CALCITE-1104
> Project: Calcite
> Issue Type: Improvement
> Reporter: Michael Mior
> Assignee: Julian Hyde
> Priority: Minor
>
> I managed to get support for a subset of Cassandra [materialized
> views|https://www.datastax.com/dev/blog/new-in-cassandra-3-0-materialized-views].
> ( Thanks owed to some hints from [~maryannxue]!)
> The one thing I noticed so far which is not supported is UUID literals in the
> WHERE clauses in the Cassandra view definition. However, I don't think that's
> a common use case. The adapter will log a warning if it encounters a view
> that can't be processed. At the very least, the view will be exposed as a
> table to Calcite (it wasn't in the previous version of the adapter).
> As per [CALCITE-1101|https://issues.apache.org/jira/browse/CALCITE-1101],
> there is probably a better way to hook in and add these views. I thought I
> would still put this up for now. I'd still like to add some tests before
> considering this viable.
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