[jira] [Commented] (CALCITE-4395) Add an interface in RelOptMaterializations to allow registering normalization rules

["Stamatis Zampetakis (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CALCITE-4395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17243042#comment-17243042 ] 

Stamatis Zampetakis commented on CALCITE-4395:
----------------------------------------------

Let's continue the discussion under CALCITE-3409.

> Add an interface in RelOptMaterializations to allow registering normalization rules
> -----------------------------------------------------------------------------------
>
>                 Key: CALCITE-4395
>                 URL: https://issues.apache.org/jira/browse/CALCITE-4395
>             Project: Calcite
>          Issue Type: Wish
>            Reporter: xzh_dz
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> In the current framework of materialized recognition, the commonly used relational algebra materialized view recognition algorithm has been implemented, but in specific scenarios, users need to customize the algorithm of materialized view recognition to enhance the ability of materialized view recognition. The algorithm of user-defined materialized view recognition has been implemented here[1]. In addition, the ability of normalization is a very important point before materialized recognition. Normalization can simplify the difficulty of materialized view recognition. Currently, the ability of normalization based on relation algebra can not well support the needs of users. Users need to be able to customize normalization rules, which may be equivalent transformation of some relational algebra. Therefore, we should allow users to customize some normalization algorithms, enhance the normalization ability before the recognition of materialized views.
> [1][Add an interface in RelOptMaterializations to allow registering UnifyRule|https://github.com/apache/calcite/pull/2094]



--
This message was sent by Atlassian Jira
(v8.3.4#803005)