[ 
https://issues.apache.org/jira/browse/HIVE-26498?focusedWorklogId=806589&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-806589
 ]

ASF GitHub Bot logged work on HIVE-26498:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 07/Sep/22 05:39
            Start Date: 07/Sep/22 05:39
    Worklog Time Spent: 10m 
      Work Description: kasakrisz commented on code in PR #3552:
URL: https://github.com/apache/hive/pull/3552#discussion_r964401200


##########
ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/rules/views/HiveMaterializedViewUtils.java:
##########
@@ -98,7 +105,22 @@ public static Table extractTable(RelOptMaterialization 
materialization) {
    * materialized view definition uses external tables.
    */
   public static Boolean isOutdatedMaterializedView(
-      String validTxnsList, HiveTxnManager txnMgr,
+          String validTxnsList, HiveTxnManager txnMgr, Hive db,
+          Set<TableName> tablesUsed, Table materializedViewTable) throws 
HiveException {
+
+    MaterializedViewMetadata mvMetadata = 
materializedViewTable.getMVMetadata();
+    MaterializationSnapshot snapshot = mvMetadata.getSnapshot();
+
+    if (snapshot.getTableSnapshots() != null && 
!snapshot.getTableSnapshots().isEmpty()) {

Review Comment:
   null check added





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

    Worklog Id:     (was: 806589)
    Time Spent: 2h 20m  (was: 2h 10m)

> Implement MV maintenance with Iceberg sources using full rebuild
> ----------------------------------------------------------------
>
>                 Key: HIVE-26498
>                 URL: https://issues.apache.org/jira/browse/HIVE-26498
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Materialized views
>            Reporter: Krisztian Kasa
>            Assignee: Krisztian Kasa
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 2h 20m
>  Remaining Estimate: 0h
>
> {code}
> set hive.support.concurrency=true;
> set hive.txn.manager=org.apache.hadoop.hive.ql.lockmgr.DbTxnManager;
> create external table tbl_ice(a int, b string, c int) stored by iceberg 
> stored as orc tblproperties ('format-version'='2');
> insert into tbl_ice values (1, 'one', 50), (2, 'two', 51), (3, 'three', 52), 
> (4, 'four', 53), (5, 'five', 54);
> create materialized view mat1 as
> select b, c from tbl_ice where c > 52;
> insert into tbl_ice values (111, 'one', 55), (333, 'two', 56);
> explain cbo
> alter materialized view mat1 rebuild;
> alter materialized view mat1 rebuild;
> {code}
> MV full rebuild plan
> {code}
> CBO PLAN:
> HiveProject(b=[$1], c=[$2])
>   HiveFilter(condition=[>($2, 52)])
>     HiveTableScan(table=[[default, tbl_ice]], table:alias=[tbl_ice])
> {code}



--
This message was sent by Atlassian Jira
(v8.20.10#820010)

Reply via email to