Consolidation for updated/deleted records in old fragments
AssigneeSap SE
InventorsIvan Schreter, Dirk Thomsen, Colin Florendo, Blaine French
Life of this patent
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Abstract
A plurality of data records of a data set can be stored in a plurality of main part fragments, at least one of which is an old fragment stored on-disk. A number of one or more data records in the old fragment that have been marked for deletion can be determined to be greater than a threshold number, and the old fragment can be loaded into main system memory. A merge of the old fragment can be performed to remove the one or more data records marked for deletion.
Claims19
A computer program product comprising a machine-readable medium storing instructions that, when executed by at least one programmable processor, cause the at least one programmable processor to perform operations comprising:
- storing, in a plurality of main part fragments, a plurality of data records that comprise a data set, the plurality of main part fragments comprising an old fragment stored on-disk;
- determining that a number of one or more data records in the old fragment that have been marked for deletion is greater than a threshold number;
- loading the old fragment into main system memory;
- performing a merge of the old fragment to remove the one or more data records marked for deletion.
A system comprising:
- at least one processor;
- and
- a machine-readable medium storing instructions that, when executed by the at least one programmable processor, cause the at least one programmable processor to perform operations comprising:
- storing, in a plurality of main part fragments, a plurality of data records that comprise a data set, the plurality of main part fragments comprising an old fragment stored on-disk;
- determining that a number of one or more data records in the old fragment that have been marked for deletion is greater than a threshold number;
- loading the old fragment into main system memory;
- performing a merge of the old fragment to remove the one or more data records marked for deletion.
A computer-implemented method comprising:
- storing, in a plurality of main part fragments, a plurality of data records that comprise a data set, the plurality of main part fragments comprising an old fragment stored on-disk;
- determining that a number of one or more data records in the old fragment that have been marked for deletion is greater than a threshold number;
- loading the old fragment into main system memory;
- performing a merge of the old fragment to remove the one or more data records marked for deletion.
Dependencies are inferred from the claim text.