snuyanzin opened a new pull request, #27269:
URL: https://github.com/apache/flink/pull/27269
## What is the purpose of the change
This is seems to be another case for FLINK-20539 which was never covered by
any test before.
The way how it could be reproduced
1.
```sql
CREATE TABLE `testcat.db.tb1.v1` (
`field0` ROW<`nested` STRING NOT NULL>
) WITH (
'connector' = 'values',
'bounded' = 'true'
);
```
2.
```sql
CREATE TABLE `testcat.db.tb2.v1` (
`field0` ROW< `nested0` ROW< `nested1` ROW<`nested2` ROW<`nested3` STRING
NOT NULL>>>>
) WITH (
'connector' = 'values',
'bounded' = 'true'
)
```
3.
```sql
SELECT 1
FROM `testcat.db.tb2.v1` t2
WHERE NOT EXISTS (
SELECT 1
FROM `testcat.db.tb1.v1` t
WHERE `t`.`field0`.`nested` = `t2`.`field0`.`nested0`.`nested2`.`nested3`
)
```
## Brief change log
*(for example:)*
- *The TaskInfo is stored in the blob store on job creation time as a
persistent artifact*
- *Deployments RPC transmits only the blob storage reference*
- *TaskManagers retrieve the TaskInfo from the blob cache*
## Verifying this change
Semantic test added
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): ( no)
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: ( no)
- The serializers: (no)
- The runtime per-record code paths (performance sensitive): ( no)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (no)
- The S3 file system connector: (no)
## Documentation
- Does this pull request introduce a new feature? (no)
- If yes, how is the feature documented? (not applicable)
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