dawidwys opened a new pull request #11081: [FLINK-16033][table-api] Introduced 
Java Table API Expression DSL
URL: https://github.com/apache/flink/pull/11081
 
 
   ## What is the purpose of the change
   
   This PR adds a Java Expression DSL as described in FLIP-55: 
https://cwiki.apache.org/confluence/display/FLINK/FLIP-55%3A+Introduction+of+a+Table+API+Java+Expression+DSL
   
   ## Brief change log
   
   *(for example:)*
     - Introduced Java Expression DSL equivalent to the Scala's one
     - Added `interval(Period)` and `interval(Duration)` expressions as a 
substitute for `.millis`, `.months`, `.quarters` etc.
     - Added prefix and/or expressions that accept multiple predicates. This 
required also changes in translation from `Expression` to `PlannerExpression`.
   
   
   ## Verifying this change
   
   - Added a test that check if there are equivalent methods in both Scala's 
and Java's APIs.
   - Adjusted a test `JavaTableEnvironmentITCase.java` to use the Java's DSL
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): (yes / **no**)
     - The public API, i.e., is any changed class annotated with 
`@Public(Evolving)`: (**yes** / no)
     - The serializers: (yes / **no** / don't know)
     - The runtime per-record code paths (performance sensitive): (yes / **no** 
/ don't know)
     - Anything that affects deployment or recovery: JobManager (and its 
components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes / **no** / don't know)
     - The S3 file system connector: (yes / **no** / don't know)
   
   ## Documentation
   
     - Does this pull request introduce a new feature? (yes / **no**)
     - If yes, how is the feature documented? (not applicable / docs / JavaDocs 
/ **not documented**) - will be part of a next PR
   

----------------------------------------------------------------
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.
 
For queries about this service, please contact Infrastructure at:
[email protected]


With regards,
Apache Git Services

Reply via email to