Help Center/ GaussDB/ Centralized_8.x/ Storage Engine/ Ustore/ Storage Format/ UB-Tree/ PCR UB-Tree/ PCR UB-Tree Visibility Mechanism

Updated on 2024-06-07 GMT+08:00

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PCR UB-Tree Visibility Mechanism

PCR UB-tree visibility is determined by rolling back a page to a moment when the snapshot is visible to obtain a page on which all tuples are visible.

Parent topic: PCR UB-Tree

Previous topic: PCR UB-Tree Multi-Version Management

Next topic: Adding, Deleting, Modifying, and Querying PCR UB-Tree

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