Help Center/
    
      
      GaussDB/
      
      
        
        
        Feature Guide(Distributed_V2.0-8.x)/
        
        
        Storage Engine/
        
        
        Ustore/
        
        
        Storage Format/
        
        
        RCR Uheap/
        
      
      RCR Uheap Visibility Mechanism
    
  
  
    
        Updated on 2025-05-29 GMT+08:00
        
          
          
        
      
      
      
      
      
      
      
      
  
      
      
      
        
RCR Uheap Visibility Mechanism
Ustore visibility is determined by building consistent versions of data rows. Old snapshots can be obtained from undo records.

   Parent topic: RCR Uheap
  
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