[jira] [Created] (HIVE-26504) User is not able to drop table

["László Végh (Jira)" <ji...@apache.org>]

László Végh created HIVE-26504:
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             Summary: User is not able to drop table
                 Key: HIVE-26504
                 URL: https://issues.apache.org/jira/browse/HIVE-26504
             Project: Hive
          Issue Type: Bug
          Components: Hive
            Reporter: László Végh


Hive won't store anything in *TAB_COL_STATS* for partitioned table, whereas impala stores complete column stats in TAB_COL_STATS for partitioned table. Deleting entries in TAB_COL_STATS is based on (DB_NAME, TABLE_NAME), not by TBL_ID. Renamed tables were having old names in TAB_COL_STATS.

To Repro:
{code:java}
beeline:
set hive.create.as.insert.only=false;
set hive.create.as.acid=false;
create table testes.table_name_with_partition (id tinyint, name string) partitioned by (col_to_partition bigint) stored as parquet;
insert into testes.table_name_with_partition (id, name, col_to_partition) values (1, "a", 2020), (2, "b", 2021), (3, "c", 2022);

impala:
compute stats testes.table_name_with_partition; -- backend shows new entries in TAB_COL_STATS

beeline:
alter table testes.table_name_with_partition rename to testes2.table_that_cant_be_droped;
drop table testes2.table_that_cant_be_droped; -- This fails with TAB_COL_STATS_fkey constraint violation.
{code}
Exception trace for drop table failure
{code:java}
Caused by: org.postgresql.util.PSQLException: ERROR: update or delete on table "TBLS" violates foreign key constraint "TAB_COL_STATS_fkey" on table "TAB_COL_STATS"
  Detail: Key (TBL_ID)=(19816) is still referenced from table "TAB_COL_STATS".
        at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2532)
        at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2267)
        ... 50 more
{code}



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