MANAGING SNAPSHOTTING OF A DATASET USING AN ORDERED SET OF B+ TREES
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United States of America
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Issued Date -
Nov 28, 2024
app pub date -
May 3, 2024
filing date -
May 3, 2024
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A dataset is represented by an ordered set of B+ trees, with each snapshot of the dataset being represented by an immutable B+ tree. An ordering of B+ trees in the ordered set logically arranges those B+ trees into layers, with the mutable B+ tree representing the current state of the dataset being logically arranged as the uppermost layer and with immutable B+ trees representing snapshots of the dataset being progressively arranged as lower layers with the oldest snapshot being the lowermost layer. A snapshot deletion includes merging a neighbor B+ tree and a subject B+ tree based on identifying partially intersecting records in the subject B+ tree and neighbor B+ tree and splitting one of those records into a non-intersecting record and a fully-intersecting record.
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