[jira] [Created] (HIVE-18243) Cartesian error for joins defined in where clause

["Zoltan Haindrich (JIRA)" <ji...@apache.org>]

Zoltan Haindrich created HIVE-18243:
---------------------------------------

             Summary: Cartesian error for joins defined in where clause
                 Key: HIVE-18243
                 URL: https://issues.apache.org/jira/browse/HIVE-18243
             Project: Hive
          Issue Type: Bug
            Reporter: Zoltan Haindrich


this issue was hidden; because of HIVE-18238

{code}
create table agg_01 (amount int, dim_shops_id int);
create table dim_shops (id int);

EXPLAIN SELECT agg.amount
FROM agg_01 agg,
dim_shops d1
WHERE agg.dim_shops_id = d1.id
and agg.dim_shops_id = 1;
{code}

emits a cartesian product error
{code}
2017-12-07T04:48:20,612 ERROR [c7a4797b-2635-4e28-9e0b-af2e4d26f2bc main] ql.Driver: FAILED: SemanticException Cartesian products are disabled for safety reasons. If you know what you are doing, please sethive.strict.checks.cartesian.product to false and that hive.mapred.mode is not set to 'strict' to proceed. Note that if you may get errors or incorrect results if you make a mistake while using some of the unsafe features.
{code}


from the plan: 
https://github.com/apache/hive/blob/7ddd915bf82a68c8ab73b0c4ca409f1a6d43d227/ql/src/test/results/clientpositive/llap/dynamic_partition_pruning_2.q.out#L591

It doesn't seem to be that a cartesian join being happening...possibly the check is overreacting...



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