RichieSK commented on PR #39407:
URL: https://github.com/apache/airflow/pull/39407#issuecomment-2094328446

   This commit introduces a new function, merge_rows, which implements an 
upsert operation for Oracle databases in OracleHook class(this function inserts 
a row if it doesn't exist and updates it if the corresponding row exists) using 
the 'MERGE INTO...' oracle sql command.
   
   It also removes a 'replace' boolean parameter in the current insert_rows 
function, which does nothing(it misguides any user into thinking the replace 
parameter works when it does nothing).


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