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Posted to issues@calcite.apache.org by "Haisheng Yuan (Jira)" <ji...@apache.org> on 2019/10/28 05:15:00 UTC
[jira] [Resolved] (CALCITE-3334) Refinement for Substitution-Based
MV Matching
[ https://issues.apache.org/jira/browse/CALCITE-3334?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Haisheng Yuan resolved CALCITE-3334.
------------------------------------
Fix Version/s: 1.22.0
Resolution: Fixed
Fixed in https://github.com/apache/calcite/commit/93da00b7537527c1457d2f1cdcd3530b61fea207. Thanks for the PR, [~jinxing6042@126.com]!
> Refinement for Substitution-Based MV Matching
> ---------------------------------------------
>
> Key: CALCITE-3334
> URL: https://issues.apache.org/jira/browse/CALCITE-3334
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: jin xing
> Assignee: jin xing
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.22.0
>
> Time Spent: 8.5h
> Remaining Estimate: 0h
>
> The approach of substitution-based MV matching is an effective way for its simplicity and extensibility.
> This JIRA proposes to refine existing implementation by several points:
> # Canonicalize before MV matching -- by such canonicalization we can significantly simplify the algebra tree and lower the difficulty for materialization matching.
> # Separate matching rules into two categories and enumerate common matching patterns which need to be covered by rules.
> Please check the design doc: [Design Doc|https://docs.google.com/document/d/1JpwGNFE3hw3yXb7W3-95-jXKClZC5UFPKbuhgYDuEu4/edit#]
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