liuyongvs opened a new pull request, #22312:
URL: https://github.com/apache/flink/pull/22312
- What is the purpose of the change
This is an implementation of MAP_ENTRIES
- Brief change log
MAP_ENTRIES for Table API and SQL
```
map_entries(map) - Returns an unordered array of all entries in the given
map.
Syntax:
map_entries(map)
Arguments:
map: An MAP to be handled.
Returns:
Returns an unordered array of all entries in the given map. Returns null if
the argument is null
> SELECT map_entries(map[1, 'a', 2, 'b']);
[(1,"a"),(2,"b")]
```
See also
presto https://prestodb.io/docs/current/functions/map.html
spark https://spark.apache.org/docs/latest/api/sql/index.html#map_entries
- Verifying this change
This change added tests in MapFunctionITCase.
- 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):
(yes )
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? (yes)
If yes, how is the feature documented? (docs)
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
