Microsoft Technology Licensing, LLC

Rana Bijad M Alotaibi

Yuanyuan Tian

Alekh Jindal

Brandon Barry Haynes

Jyoti Leeka

Anna Pavlenko

Examples detect equivalent subexpressions within a computational workload. Examples include converting a query plan tree associated with a first subexpression into a matrix. The first subexpression is a portion of a database query from the computational workload. Each node in the query plan tree is represented as a row of the matrix. The matrix is converted into a first vector. The first subexpression is determined to be equivalent to a second subexpression by comparing the first vector to a second vector associated with the second subexpression. The comparison includes computing a distance between the first and second vectors that is lower than a distance threshold. The computational workload is modified, based on the determining, to perform the first subexpression and exclude performance of the second subexpression as duplicative.

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Rana Bijad M Alotaibi