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Posted to issues-all@impala.apache.org by "Peter Rozsa (Jira)" <ji...@apache.org> on 2024/01/19 10:39:00 UTC

[jira] [Created] (IMPALA-12736) Backend changes for MERGE statement

Peter Rozsa created IMPALA-12736:
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             Summary: Backend changes for MERGE statement
                 Key: IMPALA-12736
                 URL: https://issues.apache.org/jira/browse/IMPALA-12736
             Project: IMPALA
          Issue Type: Sub-task
          Components: Backend
            Reporter: Peter Rozsa
            Assignee: Peter Rozsa


* Merge operator
 ** duplicate check
 ** matching WHEN MATCHED/WHEN NOT MATCHED clauses to the underlying rows
 * Merge sink
 ** based on UPDATE statement
 ** dispatching 3 cases:
 *** delete-write
 *** delete
 *** write



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