update readme.md #205
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update readme.md #205
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zolstein
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Jun 23, 2023
* optimize writing optional columns * refactor column writing capabilities to support optimizing optional and repeated column buffers * add writeValues methods to indexed and repeated column buffers * fix perf regression when writing uuids * Optimize writing optional columns (part 2) (xitongsys#206) * optimize nullIndex* functions * optimize nonNullIndex* functions * refactor writing optional values to use bitset to locate nulls * refactor writing optional values to use bitset to locate nulls (2) * optimize null bitmap generation * Optimize writing optional columns (part 3) (xitongsys#207) * optimize appending levels * simplify memset algorithms * add booleans to track whether column buffers have been rordered (xitongsys#208) * fix misuse of AVX-512 instruction
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