An Extra Column M_ROW$$ Is Added To The Table After Performing Online Table Redefinition Using The Rowid Option (Doc ID 459762.1)

Last updated on DECEMBER 06, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 9.2.0.1 and later
Information in this document applies to any platform.
***Checked for relevance on 13-Jul-2012***

Symptoms

You may observe an extra column M_ROW$$ added to the table once the table has undergone an Online Redefenition using the Rowid option.

Cause

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