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MariaDB server is a community developed fork of MySQL server. Started by core members of the original MySQL team, MariaDB actively works with outside developers to deliver the most featureful, stable, and sanely licensed open SQL server in the industry.
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The problem is that in a MyISAM table the following column after a varchar field gets corrupted, if varchar field is extended. This should be made to work without a copy in the future, but I'm not sure if this code is ready yet. This fix will force copy in this case. It will not do any harm to have it here, only makes alter table a bit slower in this case. If this should work for MyISAM, then the bug is somewhere else in that code. Until it works, I propose this as a temporary fix or a workaround. Test case for the bug has been added. |
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