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1. (WO2015126968) DATA MANAGEMENT SYSTEMS AND METHODS

Pub. No.:    WO/2015/126968    International Application No.:    PCT/US2015/016418
Publication Date: Fri Aug 28 01:59:59 CEST 2015 International Filing Date: Thu Feb 19 00:59:59 CET 2015
IPC: G06F 15/16
Applicants: SNOWFLAKE COMPUTING INC.
Inventors: DAGEVILLE, Benoit
CRUANES, Thierry
ZUKOWSKI, Marcin
Title: DATA MANAGEMENT SYSTEMS AND METHODS
Abstract:
Example data management systems and methods are described. In one implementation, a method identifies multiple files to process based on a received query and identifies multiple execution nodes available to process the multiple files. The method initially creates multiple scansets, each including a portion of the multiple files, and assigns each scanset to one of the execution nodes based on a file assignment model. The multiple scansets are processed by the multiple execution nodes. If the method determines that a particular execution node has finished processing all files in its assigned scanset, an unprocessed file is reassigned from another execution node to the particular execution node.