The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 2019
Filed:
Jan. 31, 2014
Indian Institute of Technology Bombay, Mumbai, IN;
Indian Institute of Technology Hyderabad, Yeddumailaram, IN;
Varun Simhadri, Maharashtra, IN;
Karthik Ramachandra, Maharashtra, IN;
Arun Chaitanya Miriappalli, Maharashtra, IN;
Ravindra Guravannavar, Maharashtra, IN;
Sundararajarao Sudarshan, Maharashtra, IN;
Indian Institute of Technology Bombay, Mumbai, IN;
Indian Institute of Technology Hyderabad, Yeddumailaram, IN;
Abstract
Systems, methods, and computer-readable medium, are disclosed for transforming user-defined-function invocations in a query-based environment. A user-defined-function (UDF) and a query invoking the UDF are received. The UDF is parsed into a plurality of statements. A first expression tree corresponding to the UDF and a second expression tree corresponding the query are constructed, and merged using an operator to generate a transformed expression. The transformed expression is simplified, using transformation rules, if it is determined that is can be simplified.
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