[IMPALA-2448] Stats computed in impala should propagate to Hive - ASF JIRA

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In Impala:

create database foo;
create table foo.bar (x int);

In Hive:

insert into table foo.bar values(33);
describe formatted foo.bar x;

In Impala:

show column stats foo.bar;
compute stats foo.bar;
show column stats foo.bar;

In Hive:

describe formatted foo.bar x;

Expected:

Impala computed stats are propagated to Hive.

Actual:

They are not. In my testing, however, the converse works: stats computed in Hive propagate to Impala after a `refresh`.