| 摘要 |
A method, system and computer program product are provided for reorganizing a database table according to multiple sparse indexes, wherein the reorganized table has superior I/O performance attributes versus the original table. More specifically, the table is reorganized such that random I/O is minimized by more tightly grouping rows in the table associated with each of the referencing sparse indexes together. This enables more associated rows from a given table relevant to a sparse index to be read into RAM for a given I/O operation.
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