Memory quota

摘要

A method, article of manufacture, and apparatus for processing queries, comprising analyzing a query tree, determining at least one operator based on the query tree analysis, assigning a memory allocation for each of the at least one operator, and storing the assignment in a storage device. In some embodiments, a memory classification for each of the at least one operator is determined. In some embodiments, assigning a memory allocation for each of the at least one operator includes assigning a memory allocation based on the memory classification.

主权项

1. A method for processing database queries in a database system, comprising:
analyzing a query comprising a plurality of operators to determine types of operators; determining for said types of operators an amount of memory required for processing the query; and assigning a memory allocation of said amount of memory for each type of operator.