Efficient drop column requests in a non-relational data store

Efficient drop column requests in a non-relational data store

Columns of a non-relational data store may be efficiently dropped. A drop column request for a table stored in a non-relational database may be received. In response to the drop column request, schema information for the table may be updated to filter out the column from subsequent read responses to...

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Bibliographische Detailangaben
Hauptverfasser: Gouws, Almero, Gordon, Nicholas, Hinojosa, Arturo, Perianayagam, Somasundaram, Munuhur Rajagopal, Lakshmi Narasimha Guptha, Vig, Akshat, Mayszak, Steven A, Grette, Olaf Anders
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Zusammenfassung:Columns of a non-relational data store may be efficiently dropped. A drop column request for a table stored in a non-relational database may be received. In response to the drop column request, schema information for the table may be updated to filter out the column from subsequent read responses to read requests. A backup of the table is created and evaluated to identify those items in the table that include the column. The column is then deleted from the identified items.