HANDLING SEMI-STRUCTURED AND UNSTRUCTURED DATA IN A SHARDED DATABASE ENVIRONMENT

HANDLING SEMI-STRUCTURED AND UNSTRUCTURED DATA IN A SHARDED DATABASE ENVIRONMENT

Techniques are described herein for leveraging and extending relational data sharding infrastructure to provide comprehensive support for sharding semi-structured and unstructured data, in addition to the relational data, in a single sharded database system. Specifically, techniques are described in...

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Bibliographische Detailangaben
Hauptverfasser: Liu, Zhen Hua, Arora, Vikas, Krishnamurthy, Sriram, Tata, Srividya, Lu, Ying, McMahon, Douglas J, Hammerschmidt, Beda C
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Zusammenfassung:Techniques are described herein for leveraging and extending relational data sharding infrastructure to provide comprehensive support for sharding semi-structured and unstructured data, in addition to the relational data, in a single sharded database system. Specifically, techniques are described in which a catalog server pre-gathers all data it needs to answer fetches from a dynamically created temporary lob. In addition, techniques are provided in which a catalog server encodes shard identifiers in lob locators sent to the client. Techniques are provided for pushing down various operators to shard servers.