| CPC G06F 16/24542 (2019.01) [G06F 16/2455 (2019.01); G06F 21/6227 (2013.01)] | 20 Claims |
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1. A system, comprising:
at least one processor; and
at least one memory that stores computer-executable instructions that, in response to execution by the at least one processor, cause the system to:
identify a first portion of a query plan, the first portion indicative of executing a user-defined function;
identify a second portion of the query plan, the second portion indicative of accessing a database table associated with a security policy, wherein each of the first and the second portions of the query plan are to be executed by different computing nodes;
generate, based at least in part on:
the identification of the first and second portions, and
a security rule that prohibits the same computing node from executing user-defined functions and accessing the database table where security of the database table could be jeopardized by execution of user-defined functions at the same computing node,
an execution plan in which the first portion is to be performed in a first stage separate from a second stage of the execution plan in which the second portion is to be performed;
cause the first stage of the execution plan to be performed on a first computing node;
cause the second stage of the execution plan to be performed on a second computing node; and
provide a result of the query based, at least in part, on the performance of the first and second stages.
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