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Posted to user@madlib.apache.org by Rahul Iyer <ra...@gmail.com> on 2017/09/21 20:11:54 UTC

Error when predicting using an older decision tree

An error was found when predicting using MADlib v1.12, with the decision
tree trained using an older version. The details can be found in MADLIB-1161
<https://issues.apache.org/jira/browse/MADLIB-1161>.

The workaround for the error is to add an additional column called
'null_proxy' with a NULL value.

ALTER TABLE <summary_table> ADD COLUMN null_proxy TEXT DEFAULT NULL;