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11-13-2022 03:34 PM
Is there a possibility to downgrade the Delta Table protocol versions minReader from 2 to 1 and maxWriter from 5 to 3? I have set the TBL properties to 2 and 5 and columnmapping mode to rename the columns in the DeltaTable but the other users are reading this delta table with Databricks runtime 7.3 and getting the error "com.databricks.sql.transaction.tahoe.ColumnMappingUnsupportedException:". they cannot upgrade the Databricks runtime to 10.4. i'm trying to reset the tblproperties it is not happening
Is there a possibility to revert back to version to previous version? and how? or any other solution to handle this problem?
Looking for a solution to the problem please any inputs?
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Databricks Runtime
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Delta
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TBL
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11-15-2022 06:24 AM
Unfortunately You can't downgrade the version. it's an irreversible operation.
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11-14-2022 06:29 AM
Hi Kaniz Fatma, Yes you are correct.. what is the solution here now.. apart from upgrading the database runtime.. Can I restore the table version to previous one? Or I need to drop the delta table and are create the new one?
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11-15-2022 06:24 AM
Unfortunately You can't downgrade the version. it's an irreversible operation.

