Problem refreshing materialized view

[#1]

Hi,

I'm having trouble refreshing a materialized view as it doesn't update properly. I'm going to show an example.

Base table "test_table" with 2 rows:

create table test_table
as
select 1 as c
union
select 2 as c

Then I create a materialized view from "test_table":

create materialized view test_mv
as
select *
from test_table

If I query test_mv, it show 2 rows, it's ok. But if I truncate the original table, and then rebuild the materialized view, the query over the materialized view keeps showing 2 rows!

truncate table test_table;
alter materialized view test_mv rebuild;
select * from test_mv; -- <-- This query returns 2 rows!!

Any ideas on what's happening? I'm running hive version 3.1.0.3.1.0.0-78 

Thanks!

[#2]

Hi

I came across the same issue when we truncated tables. Hive version 3.1.0.3.1.4.0-315

Cheers.

[#3]

@luigui @MBohlmann  I believe you are hitting https://issues.apache.org/jira/browse/HIVE-22260