shivsood commented on issue #26549: [SPARK-29644][SQL][2.4] Corrected ShortType and ByteType mapping to SmallInt and TinyInt in JDBCUtils URL: https://github.com/apache/spark/pull/26549#issuecomment-554565007 > Can you update the description above? Yes, >Anyway, IMO this is not a serious bug fix, so it might be less worth correcting it in this branch. @maropu Originally i found the issue when validating on spark 2.4. I think its important. AFIAK without this fix, i was not able to overwrite tables in SQL server if the dataframe had a ByteType column. This was because Spark sent a JDBC create command using "BYTE" which is not a know JDBC type. The fixes in jdbcutils.scala now fix this.
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