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https://issues.apache.org/jira/browse/HIVE-21806?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Csaba Ringhofer updated HIVE-21806:
-----------------------------------
Description:
The issue seems similar to HIVE-9720, but only happens with partitioned tables.
I only tested with Hive 3.1 in Impala dev environment.
The issue can be reproduced by the following statements (it doesn't matter
whether Hive or Impala runs them with the exception of compute/show stats).
create database db1;
create database db2;
create table db1.t(i int) partitioned by (p int);
insert into db1.t partition (p=1) values (2);
compute stats db1.t; -- needs Impala
alter table db1.t rename to db2.t;
show column stats db1.2; -- needs Impala, null count and ndv will be
incorrectly -1
drop table db2.t; -- this will hang
was:
The issue seems similar to HIVE-9720, but only happens with partitioned tables.
I only tested with Hive 3.1 in Impala dev environment.
The issue can be reproduced by a following statements (it doesn't matter
whether Hive or Impala runs them with the exception of compute/show stats).
create database db1;
create database db2;
create table db1.t(i int) partitioned by (p int);
insert into db1.t partition (p=1) values (2);
compute stats db1.t; -- needs Impala
alter table db1.t rename to db2.t;
show column stats db1.2; -- needs Impala, null count and ndv will be
incorrectly -1
drop table db2.t; -- this will hang
> Renaming a table to another db does not handle Impala stats in partitoned
> tables
> --------------------------------------------------------------------------------
>
> Key: HIVE-21806
> URL: https://issues.apache.org/jira/browse/HIVE-21806
> Project: Hive
> Issue Type: Bug
> Components: Metastore, Standalone Metastore
> Affects Versions: 3.1.0
> Reporter: Csaba Ringhofer
> Priority: Major
>
> The issue seems similar to HIVE-9720, but only happens with partitioned
> tables. I only tested with Hive 3.1 in Impala dev environment.
> The issue can be reproduced by the following statements (it doesn't matter
> whether Hive or Impala runs them with the exception of compute/show stats).
> create database db1;
> create database db2;
> create table db1.t(i int) partitioned by (p int);
> insert into db1.t partition (p=1) values (2);
> compute stats db1.t; -- needs Impala
> alter table db1.t rename to db2.t;
> show column stats db1.2; -- needs Impala, null count and ndv will be
> incorrectly -1
> drop table db2.t; -- this will hang
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