zhuxiaoshang opened a new pull request #13431:
URL: https://github.com/apache/flink/pull/13431


   
   ## What is the purpose of the change
   
   to support full table path in flink sql ddl
   for example, if we have a table whose full path is 
default_catalog.default_database.my_table1, and the following DDL will fail
   
   ```
   create table my_table2 
   like default_catalog.default_database.my_table1
   ```
   
   
   ## Brief change log
     - to support full table path in flink sql ddl
   
   
   ## Verifying this change
   
   This change added tests 
   
   ## 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/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 / docs / JavaDocs 
/ not documented)
   


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