[Bug] lateral view + subquery leads to the error predicate #7823
Description
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- I had searched in the issues and found no similar issues.
Version
What's Wrong?
The lateral view + subquery leads to the error join predicate equal join conjunct: `k3` = `k3`
What You Expected?
Only one join predicate equal join conjunct: `k1` = `k3`
How to Reproduce?
Steps:
- create table
CREATE TABLE `test_explode` (
`k1` int(11) NULL COMMENT "",
`k2` varchar(1) NULL COMMENT ""
) ENGINE=OLAP
DUPLICATE KEY(`k1`)
COMMENT "OLAP"
DISTRIBUTED BY HASH(`k1`) BUCKETS 5
PROPERTIES (
"replication_allocation" = "tag.location.default: 1",
"in_memory" = "false",
"storage_format" = "V2"
)
- query
MySQL [test]> explain select k1 from test_explode lateral view explode_split(k2, ",") tmp as e1 where k1 in (select k3 from tbl1);
+--------------------------------------------------------------------------------------+
| Explain String |
+--------------------------------------------------------------------------------------+
| PLAN FRAGMENT 0 |
| OUTPUT EXPRS:`k1` |
| PARTITION: UNPARTITIONED |
| |
| RESULT SINK |
| |
| 6:EXCHANGE |
| |
| PLAN FRAGMENT 1 |
| OUTPUT EXPRS: |
| PARTITION: HASH_PARTITIONED: `k3`, `k1` |
| |
| STREAM DATA SINK |
| EXCHANGE ID: 06 |
| UNPARTITIONED |
| |
| 3:HASH JOIN |
| | join op: LEFT SEMI JOIN (PARTITIONED) |
| | hash predicates: |
| | colocate: false, reason: The src data has been redistributed |
| | equal join conjunct: `k3` = `k3` |
| | equal join conjunct: `k1` = `k3` |
| | runtime filters: RF000[in] <- `k3` |
| | cardinality=-1 |
| | |
| |----5:EXCHANGE |
| | |
| 4:EXCHANGE |
| |
| PLAN FRAGMENT 2 |
| OUTPUT EXPRS: |
| PARTITION: HASH_PARTITIONED: `default_cluster:test`.`tbl1`.`k1` |
| |
| STREAM DATA SINK |
| EXCHANGE ID: 05 |
| HASH_PARTITIONED: `k3`, `k3` |
| |
| 2:OlapScanNode |
| TABLE: tbl1 |
| PREAGGREGATION: OFF. Reason: No AggregateInfo |
| partitions=1/1 |
| rollup: tbl1 |
| tabletRatio=3/3 |
| tabletList=14007,14009,14011 |
| cardinality=1 |
| avgRowSize=983.0 |
| numNodes=2 |
| |
| PLAN FRAGMENT 3 |
| OUTPUT EXPRS: |
| PARTITION: HASH_PARTITIONED: `default_cluster:test`.`test_explode`.`k1` |
| |
| STREAM DATA SINK |
| EXCHANGE ID: 04 |
| HASH_PARTITIONED: `k3`, `k1` |
| |
| 1:TABLE FUNCTION NODE |
| | table function: explode_split(`default_cluster:test`.`test_explode`.`k2`, ',') |
| | lateral view tuple id: 1 |
| | output slot id: 2 |
| | cardinality=-1 |
| | |
| 0:OlapScanNode |
| TABLE: test_explode |
| PREAGGREGATION: ON |
| runtime filters: RF000[in] -> `k1` |
| partitions=1/1 |
| rollup: test_explode |
| tabletRatio=5/5 |
| tabletList=17010,17012,17014,17016,17018 |
| cardinality=1 |
| avgRowSize=842.0 |
| numNodes=2 |
+--------------------------------------------------------------------------------------+
73 rows in set (2 min 19.321 sec)
Anything Else?
No response
Are you willing to submit PR?
- Yes I am willing to submit a PR!
Code of Conduct
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