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LOGLESS ATOMIC DATA MOVEMENT

  • US 20170185642A1
  • Filed: 03/13/2017
  • Published: 06/29/2017
  • Est. Priority Date: 04/30/2012
  • Status: Active Grant
First Claim
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1. A computer-implemented method of log-less atomic data movement for use in a unified table database architecture of an in-memory computing system having a multi-level storage architecture, the multi-level storage architecture having a first level storage structure to store incoming data requests in a logical row format as data records and a second level storage structure to encode and store the data records in a logical column format, the method comprising:

  • starting, by the in-memory computing system, an internal transaction within the multi-level storage architecture, the internal transaction to merge data from the first level storage structure to the second level storage structure;

    reading, by the in-memory computing system, committed data from the first level storage structure as specified by the internal transaction;

    inserting, by the in-memory computing system, the committed data from the first level storage structure into the second level storage structure in a bulk insertion process;

    marking, by the in-memory computing system, the committed data in the multi-level storage architecture as being deleted from the first level storage; and

    committing, by the in-memory computing system, the internal transaction to the multi-level storage architecture when the committed data has been inserted into the second level storage structure.

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