[GitHub] [spark] barenko commented on pull request #40683: [SPARK-43049][SQL] Use CLOB instead of VARCHAR(255) for StringType for Oracle JDBC

["barenko (via GitHub)" <gi...@apache.org>]

barenko commented on PR #40683:
URL: https://github.com/apache/spark/pull/40683#issuecomment-1739946042

   How can I force to use varchar2 instead clob?
   
   I have a table with index in the varchar column (ROW_ID) and Oracle does not allow index on clobs. 


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