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https://issues.apache.org/jira/browse/IMPALA-13991?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Riza Suminto resolved IMPALA-13991.
-----------------------------------
Fix Version/s: Impala 5.0.0
Assignee: Riza Suminto
Resolution: Fixed
> Nested loop join compose wrong predicate.
> -----------------------------------------
>
> Key: IMPALA-13991
> URL: https://issues.apache.org/jira/browse/IMPALA-13991
> Project: IMPALA
> Issue Type: Bug
> Components: Frontend
> Reporter: Riza Suminto
> Assignee: Riza Suminto
> Priority: Major
> Fix For: Impala 5.0.0
>
> Attachments: profile_9c41d9d5e3a79d15_e927d8c400000000.txt
>
>
> Using functional_parquet database, run the following:
> {noformat}
> [localhost:21050] functional_parquet> select * from alltypes where (id in
> (1000, 1001)) OR ((id in (1, 2)) AND timestamp_col <= (select timestamp_col
> from alltypestiny order by timestamp_col DESC limit 1));
> Query: select * from alltypes where (id in (1000, 1001)) OR ((id in (1, 2))
> AND timestamp_col <= (select timestamp_col from alltypestiny order by
> timestamp_col DESC limit 1))
> Query submitted at: 2025-04-24 12:06:34 (Coordinator:
> http://rsuminto-22746:25000)
> Query state can be monitored at:
> http://rsuminto-22746:25000/query_plan?query_id=9c41d9d5e3a79d15:e927d8c400000000
> +----+----------+-------------+--------------+---------+------------+---------------+------------+-----------------+------------+-------------------------------+------+-------+
> | id | bool_col | tinyint_col | smallint_col | int_col | bigint_col |
> float_col | double_col | date_string_col | string_col | timestamp_col
> | year | month |
> +----+----------+-------------+--------------+---------+------------+---------------+------------+-----------------+------------+-------------------------------+------+-------+
> | 1 | false | 1 | 1 | 1 | 10 |
> 1.10000002384 | 10.1 | 01/01/09 | 1 | 2009-01-01
> 00:01:00 | 2009 | 1 |
> | 2 | true | 2 | 2 | 2 | 20 |
> 2.20000004768 | 20.2 | 01/01/09 | 2 | 2009-01-01
> 00:02:00.100000000 | 2009 | 1 |
> +----+----------+-------------+--------------+---------+------------+---------------+------------+-----------------+------------+-------------------------------+------+-------+
> Fetched 2 row(s) in 0.11s
> [localhost:21050] functional_parquet> select * from alltypes where (id in
> (1000, 1001)) OR ((id in (1, 2)) AND timestamp_col <= '2009-04-01 00:01:00');
> Query: select * from alltypes where (id in (1000, 1001)) OR ((id in (1, 2))
> AND timestamp_col <= '2009-04-01 00:01:00')
> Query submitted at: 2025-04-24 12:06:43 (Coordinator:
> http://rsuminto-22746:25000)
> Query state can be monitored at:
> http://rsuminto-22746:25000/query_plan?query_id=fc40ff3109deea71:cb99a7e200000000
> +------+----------+-------------+--------------+---------+------------+---------------+------------+-----------------+------------+-------------------------------+------+-------+
> | id | bool_col | tinyint_col | smallint_col | int_col | bigint_col |
> float_col | double_col | date_string_col | string_col | timestamp_col
> | year | month |
> +------+----------+-------------+--------------+---------+------------+---------------+------------+-----------------+------------+-------------------------------+------+-------+
> | 1 | false | 1 | 1 | 1 | 10 |
> 1.10000002384 | 10.1 | 01/01/09 | 1 | 2009-01-01
> 00:01:00 | 2009 | 1 |
> | 2 | true | 2 | 2 | 2 | 20 |
> 2.20000004768 | 20.2 | 01/01/09 | 2 | 2009-01-01
> 00:02:00.100000000 | 2009 | 1 |
> | 1001 | false | 1 | 1 | 1 | 10 |
> 1.10000002384 | 10.1 | 04/11/09 | 1 | 2009-04-11
> 01:41:04.500000000 | 2009 | 4 |
> | 1000 | true | 0 | 0 | 0 | 0 | 0.0
> | 0.0 | 04/11/09 | 0 | 2009-04-11
> 01:40:04.500000000 | 2009 | 4 |
> +------+----------+-------------+--------------+---------+------------+---------------+------------+-----------------+------------+-------------------------------+------+-------+
> Fetched 4 row(s) in 0.11s
> [localhost:21050] functional_parquet> select timestamp_col from alltypestiny
> order by timestamp_col DESC limit 1;
> Query: select timestamp_col from alltypestiny order by timestamp_col DESC
> limit 1
> Query submitted at: 2025-04-24 12:11:43 (Coordinator:
> http://rsuminto-22746:25000)
> Query state can be monitored at:
> http://rsuminto-22746:25000/query_plan?query_id=054746f7ea1bdc26:3711f6f800000000
> +---------------------+
> | timestamp_col |
> +---------------------+
> | 2009-04-01 00:01:00 |
> +---------------------+
> Fetched 1 row(s) in 0.11s
> {noformat}
>
> NESTED LOOP JOIN should not take out the less than predicate over
> timestamp_col as its own equality predicate.
> {noformat}
> 03:NESTED LOOP JOIN [INNER JOIN, BROADCAST]
> | predicates: timestamp_col <= timestamp_col, (id IN (CAST(1000 AS INT),
> CAST(1001 AS INT))) OR ((id IN (CAST(1 AS INT), CAST(2 AS INT))) AND
> timestamp_col IS NOT NULL)
> | mem-estimate=16B mem-reservation=0B thread-reservation=0
> | tuple-ids=0,2 row-size=96B cardinality=11.95K
> | in pipelines: 00(GETNEXT), 02(OPEN){noformat}
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