[GitHub] dianfu opened a new pull request #7848: [FLINK-10755][table] Port external catalogs in Table API extension points to flink-table-common

[GitBox <gi...@apache.org>]

dianfu opened a new pull request #7848: [FLINK-10755][table] Port external catalogs in Table API extension points to flink-table-common
URL: https://github.com/apache/flink/pull/7848
 
 
   ## What is the purpose of the change
   
   *This pull request ported external catalog to flink-table-common*
   
   ## Brief change log
   
     - *Ported the following classes to flink-table-common: Rowtime, ExternalCatalog, ExternalCatalogTable, SchematicDescriptor, TimestampExtractor, StreamRecordTimestamp, ExistingField, Schema, WatermarkStrategy*
     - *Updated Rowtime to remove the dependency of AscendingTimestamps and BoundedOutOfOrderTimestamps as they will introduce the dependency of Watermark. As a consequence, this PR has removed method RowtimeValidator.normalizeTimestampExtractor, and RowtimeValidator.normalizeWatermarkStrategy as they are not used any more.*
    
   PS: This PR depends on FLINK-11516 and FLINK-11449.
   
   ## Verifying this change
   
   This change is a code cleanup without any test coverage.
   
   ## 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, Yarn/Mesos, 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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