公开(公告)号：US20150169687A1

公开(公告)日：2015-06-18

申请号：US14628643

申请日：2015-02-23

申请人： Ab Initio Technology LLC

发明人： Ian Schechter ,  Glenn John Allin

IPC分类号： G06F17/30

CPC分类号： G06F17/30463 ,  G06F17/30398 ,  G06F17/30436 ,  G06F17/30477 ,  G06F17/30958

摘要： In one aspect, in general, a method of generating a dataflow graph representing a database query includes receiving a query plan from a plan generator, the query plan representing operations for executing a database query on at least one input representing a source of data, producing a dataflow graph from the query plan, wherein the dataflow graph includes at least one node that represents at least one operation represented by the query plan, and includes at least one link that represents at least one dataflow associated with the query plan, and altering one or more components of the dataflow graph based on at least one characteristic of the at least one input representing the source of data.

摘要翻译： 一方面，一般来说，生成表示数据库查询的数据流图的方法包括从计划生成器接收查询计划，所述查询计划表示用于对表示数据源的至少一个输入执行数据库查询的操作，产生 来自所述查询计划的数据流图，其中所述数据流图包括表示由所述查询计划表示的至少一个操作的至少一个节点，并且包括表示与所述查询计划相关联的至少一个数据流的至少一个链接，并且改变一个 基于代表数据源的至少一个输入的至少一个特性，数据流图的多个或多个组件。