Data retrieval from heterogeneous storage systems

Techniques are described for retrieving data stored in datastores with different or heterogeneous data storage formats. A data report request is received, specifying data attributes, conditions, and ordering information for data to be retrieved from one or more datastores. The request may be in a sy...

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Bibliographic Details
Main Author KALKI SANTOSH
Format Patent
LanguageEnglish
Published 26.01.2016
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:Techniques are described for retrieving data stored in datastores with different or heterogeneous data storage formats. A data report request is received, specifying data attributes, conditions, and ordering information for data to be retrieved from one or more datastores. The request may be in a syntax tree format that is abstracted away from any particular data storage technology or native query language, enabling data retrieval requests from users who lack a particular knowledge of query languages and the underlying storage format of the datastores. The request is analyzed, and a query plan is determined based on storage metadata indicating data attributes stored in various datastores, and based on data retrieval latency information for the datastores. Each query of the query plan is generated in a native query language supported by the targeted datastore. The query plan is executed to generate the requested data report.
Bibliography:Application Number: US201313788057