Help Center/ GaussDB/ Feature Guide(Centralized_8.x)/ Storage Engine/ Ustore/ Storage Format/ UB-Tree/ PCR UB-Tree/ PCR UB-Tree Multi-Version Management

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

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PCR UB-Tree Multi-Version Management

Different from that of RCR UB-tree, page consistency read (PCR) multi-version management is based on pages. Transaction information of all tuples is managed by the TD slot.

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