Apache Arrow

https://www.kdnuggets.com/2017/02/apache-arrow-parquet-columnar-data.html

https://arrow.apache.org/

 

https://hyper-db.de/index.html#team

CMU-db，https://github.com/cmu-db/terrier

 

SIMD，https://blog.csdn.net/tercel_zhang/article/details/80694573

single instruction multiple data，

128bit的寄存器，能夠同時放4個32bit的float，對4個float同時執行指令，好比add，就實現了SIMD

SSE指令，Streaming SIMD Extensions的縮寫

SSE有8個128位寄存器，XMM0 ~XMM7

能夠進行，packed或scalar計算