Jesus Camacho Rodriguez created HIVE-21231:
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Summary: HiveJoinAddNotNullRule support for range predicates
Key: HIVE-21231
URL: https://issues.apache.org/jira/browse/HIVE-21231
Project: Hive
Issue Type: Improvement
Components: CBO
Reporter: Jesus Camacho Rodriguez
For instance, given the following query:
{code:sql}
SELECT t0.col0, t0.col1
FROM
(
SELECT col0, col1 FROM tab
) AS t0
INNER JOIN
(
SELECT col0, col1 FROM tab
) AS t1
ON t0.col0 < t1.col0 AND t0.col1 > t1.col1
{code}
we could still infer that col0 and col1 cannot be null for any of the inputs.
Currently we do not.
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