RangeTableEntry is a data structure used in Apache AGE to define a range of values for a column in a table. It is essentially a key-value pair where the key represents a range of values and the value represents a list of node IDs that correspond to nodes storing the rows within that range. RangeTableEntry is important because it allows AGE to efficiently distribute data across nodes in a cluster based on column values, thereby improving query performance and reducing data transfer overhead.
RangeTableEntry is commonly used in scenarios where large tables need to be partitioned and distributed across multiple nodes in a cluster. By defining ranges of column values, RangeTableEntry helps to evenly distribute data across nodes, reducing the risk of data skew and improving query performance. It is also useful in scenarios where data needs to be sharded across multiple nodes for better scalability and fault tolerance, as RangeTableEntry allows for efficient placement and tracking of data nodes in a distributed system. Overall, RangeTableEntry is a key component of AGE's data distribution and partitioning system, enabling efficient and scalable distributed query processing in Apache AGE.
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Asked: 2022-12-11 11:00:00 +0000
Seen: 9 times
Last updated: Feb 03 '23
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