[ 
https://issues.apache.org/jira/browse/HIVE-25747?focusedWorklogId=727651&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-727651
 ]

ASF GitHub Bot logged work on HIVE-25747:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 15/Feb/22 19:07
            Start Date: 15/Feb/22 19:07
    Worklog Time Spent: 10m 
      Work Description: kgyrtkirk commented on a change in pull request #2881:
URL: https://github.com/apache/hive/pull/2881#discussion_r806937463



##########
File path: 
ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/HiveTezModelRelMetadataProvider.java
##########
@@ -58,4 +60,24 @@
                 HiveRelMdPredicates.SOURCE,
                 JaninoRelMetadataProvider.DEFAULT)));
 
+  public static JaninoRelMetadataProvider with(RelOptMaterialization 
materialization) {
+    return JaninoRelMetadataProvider.of(
+            ChainedRelMetadataProvider.of(
+                    ImmutableList.of(
+                            HiveRelMdDistinctRowCount.SOURCE,

Review comment:
       can't we reuse somehow the other list(`DEFAULT`):
   
   I think something like this could probably work:
   ``` 
     public static final JaninoRelMetadataProvider DEFAULT2 =
         JaninoRelMetadataProvider.of(
           ChainedRelMetadataProvider.of(
               ImmutableList.of(
                   HiveRelMdRowCount.SOURCE,
                   DEFAULT)));
   ```
   
   this provider could probably also be moved closer to the place where its 
being used




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Issue Time Tracking
-------------------

    Worklog Id:     (was: 727651)
    Time Spent: 1h 10m  (was: 1h)

> Make a cost base decision when rebuilding materialized views
> ------------------------------------------------------------
>
>                 Key: HIVE-25747
>                 URL: https://issues.apache.org/jira/browse/HIVE-25747
>             Project: Hive
>          Issue Type: Improvement
>          Components: CBO, Materialized views
>            Reporter: Krisztian Kasa
>            Assignee: Krisztian Kasa
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 1h 10m
>  Remaining Estimate: 0h
>
> Choose between full insert-overwrite and partition based incremental rebuild 
> plan when rebuilding partitioned materialized views.



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