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https://issues.apache.org/jira/browse/HIVE-23959?focusedWorklogId=466075&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-466075
]
ASF GitHub Bot logged work on HIVE-23959:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 04/Aug/20 07:21
Start Date: 04/Aug/20 07:21
Worklog Time Spent: 10m
Work Description: pvary commented on a change in pull request #1341:
URL: https://github.com/apache/hive/pull/1341#discussion_r464850208
##########
File path:
standalone-metastore/metastore-common/src/main/java/org/apache/hadoop/hive/metastore/conf/MetastoreConf.java
##########
@@ -1352,6 +1352,12 @@ public static ConfVars getMetaConf(String name) {
"If both this and the metastore.dbaccess.ssl.* properties are set,
then the latter properties \n" +
"will overwrite what was set in the deprecated property."),
+
COLSTATS_RETAIN_ON_COLUMN_REMOVAL("metastore.colstats.retain.on.column.removal",
+ "hive.metastore.colstats.retain.on.column.removal", true,
+ "Wether to retain column statistics during column removals in
partitioned tables - disabling this "
Review comment:
nit: Whether?
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Issue Time Tracking
-------------------
Worklog Id: (was: 466075)
Time Spent: 1h 20m (was: 1h 10m)
> Provide an option to wipe out column stats for partitioned tables in case of
> column removal
> -------------------------------------------------------------------------------------------
>
> Key: HIVE-23959
> URL: https://issues.apache.org/jira/browse/HIVE-23959
> Project: Hive
> Issue Type: Improvement
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
> in case of column removal / replacement - an update for each partition is
> neccessary; which could take a while.
> goal here is to provide an option to switch to the bulk removal of column
> statistics instead of working hard to retain as much as possible from the old
> stats.
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