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N-BIT COMPRESSED VERSIONED COLUMN DATA ARRAY FOR IN-MEMORY COLUMNAR STORES
N-BIT COMPRESSED VERSIONED COLUMN DATA ARRAY FOR IN-MEMORY COLUMNAR STORES
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机译:内存列存储的N位压缩版本列数据数组
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摘要
As part of a columnar in-memory database, value identifiers are inserted into a backing array in-memory until such time that it is determined that such backing array does not have sufficient capacity. A new backing array is then generated that includes the value identifiers in the old backing array and which has sufficient capacity. The old backing array can be flushed from memory when there are no active operations using such backing array. Such an arrangement allows for readers and non-structural writers to operate concurrently. Related apparatus, systems, techniques and articles are also described.
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