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https://issues.apache.org/jira/browse/CALCITE-1182?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Maryann Xue resolved CALCITE-1182.
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Resolution: Fixed
Fix Version/s: 1.8.0
Fixed in
https://git1-us-west.apache.org/repos/asf?p=calcite.git;a=commit;h=576c1a1eeb138726387e55680f4a1bd2aa7ed023.
> Add ProjectRemoveRule to pre-processing program of materialization
> substitution
> -------------------------------------------------------------------------------
>
> Key: CALCITE-1182
> URL: https://issues.apache.org/jira/browse/CALCITE-1182
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Maryann Xue
> Assignee: Maryann Xue
> Priority: Minor
> Labels: materializedviews, phoenix
> Fix For: 1.8.0
>
>
> In VolcanoPlanner, we apply a simple pre-processing hep program to normalize
> the "target" and "query" rels before materialization substitution. Currently
> this program runs with two rules: FilterProjectTransposeRule and
> ProjectMergeRule.
> We need an extra rule ProjectRemoveRule for the Phoenix use case where a
> secondary index (modeled as materialized views) is defined on a view so the
> materialized view "queryRel" may have an identity projection introduced by
> this view.
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