SCALABLE ANALYSIS PLATFORM FOR SEMI-STRUCTURED DATA
摘要
<p>A method of operating a query system includes retrieving objects from a data source. Each of the retrieved objects includes (i) data and (ii) metadata describing the data. The method further includes dynamically creating a cumulative schema. The dynamically creating includes, for each object of the retrieved objects, (i) inferring a schema from the object based on the metadata of the object and inferred data types of elements of the data of the object, (ii) creating a unified schema, and (iii) storing the unified schema as the cumulative schema. The unified schema describes both (a) the object described by the inferred schema and (b) a cumulative set of objects described by the cumulative schema. The method further includes storing the data of each of the retrieved objects in a storage service.</p>
申请公布号
EP2795487(A4)
申请公布日期
2015.07.29
申请号
EP20120859130
申请日期
2012.12.21
申请人
AMAZON TECHNOLOGIES, INC.
发明人
BINKERT, NATHAN;HARIZOPOULOS, STAVROS;SHAH, MEHUL, A.;SOWELL, BENJAMIN A.;TSIROGIANNIS, DIMITRIOS