Hive version: 0.10.0-cdh4.2.1 Trying to insert into a bucketized table from the same table, throws exception: "FAILED: SemanticException [Error 10122]: Bucketized tables do not support INSERT INTO: Table:"
To test the scenario, I create the following 3 test tables: create table temp1 (a int) PARTITIONED BY ( b string, c string) clustered by (a) into 2 buckets stored as RCFILE; create table temp2 (a int) stored as RCFILE; create table temp3 (a int) PARTITIONED BY ( b string, c string) stored as RCFILE; When I run the below insert queries, queries 1, 3 & 4 work fine, while query 2 fails with the above mentioned exception. 1. insert into table temp1 partition(b='1', c='1') select * from temp2; 2. insert into table temp1 partition(b='1', c='1') select * from temp2 t2 join temp1 t1 on(t2.a=t1.a); 3. insert into table temp1 partition(b='1', c='1') select t3.a from (select t1.a from temp2 t2 join temp1 t1 on(t2.a=t1.a)) tt join temp3 t3 on (tt.a=t3.a); 4. insert into table temp3 partition(b='1', c='1') select t2.a from temp2 t2 join temp3 t1 on(t2.a=t1.a); So, the above exception occurs only if the target table is bucketed and it uses itself directly in the join tables. For some reason, case 3 works fine, where its joining with some other table finally. Has anyone faced this issue earlier? Looks like a Hive bug. Is there any workaround?
