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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Work logged] (HIVE-21109) Stats replication for ACID tables.
Date Wed, 27 Mar 2019 09:15:00 GMT


ASF GitHub Bot logged work on HIVE-21109:

                Author: ASF GitHub Bot
            Created on: 27/Mar/19 09:14
            Start Date: 27/Mar/19 09:14
    Worklog Time Spent: 10m 
      Work Description: ashutosh-bapat commented on pull request #579: HIVE-21109 : Support
stats replication for ACID tables.

 File path: standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/
 @@ -1894,6 +1898,16 @@ private void create_table_core(final RawStore ms, final Table tbl,
                                    List<SQLCheckConstraint> checkConstraints)
         throws AlreadyExistsException, MetaException,
         InvalidObjectException, NoSuchObjectException, InvalidInputException {
+      ColumnStatistics colStats = null;
+      // If the given table has column statistics, save it here. We will update it later.
+      // We don't want it to be part of the Table object being created, lest the create table
 Review comment:
   " and also shouldn't be persisted". That's not true. We will persist the table stats but
later. If you let me know which part of the comment is complex (needs simplification), will
come up with alternate wording reflecting the same meaning.
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Issue Time Tracking

    Worklog Id:     (was: 219208)
    Time Spent: 3h 20m  (was: 3h 10m)

> Stats replication for ACID tables.
> ----------------------------------
>                 Key: HIVE-21109
>                 URL:
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Ashutosh Bapat
>            Assignee: Ashutosh Bapat
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HIVE-21109.01.patch, HIVE-21109.02.patch, HIVE-21109.03.patch, HIVE-21109.04.patch,
HIVE-21109.05.patch, HIVE-21109.06.patch
>          Time Spent: 3h 20m
>  Remaining Estimate: 0h
> Transactional tables require a writeID associated with the stats update. This writeId
needs to be in sync with the writeId on the source and hence needs to be replicated from
the source.

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