Teradata Us, Inc.

Chrisopher James Antoun

Douglas Paul Brown

Louis Martin Burger

Frank Roderic Vandervort

Matthew Edward Antoun

A database system receives a query. The database system retrieves an old query execution plan (QEP), OldPlan, for the query. The database system submits the query to an optimizer. The optimizer returns a new QEP, NewPlan, for the query. The database system submits the OldPlan and the NewPlan to a machine learning classifier (ML classifier). The ML classifier predicts that executing the NewPlan will result in a performance regression as compared to executing the OldPlan. The database system executes the OldPlan instead of the NewPlan.

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Santa Clara, CA, United States of America

Chrisopher James Antoun