[jira] [Created] (HIVE-21806) Renaming a table to another db does not handle Impala stats in partitoned tables

["Csaba Ringhofer (JIRA)" <ji...@apache.org>]

Csaba Ringhofer created HIVE-21806:
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             Summary: 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


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







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