Tag: z

Square 入主 Tidal

金流產業的 Square 買了音樂產業的 Tidal 大量股份，入主 Tidal：「Square to Buy Majority Stake in Jay-Z’s Tidal Music Streaming Platform」，TechCrunch 也有報導：「Square buys majority of Tidal, adds Jay Z to its board in bid to shake up the artist economy」。

這次的入股包括現金與股票交換，同時也讓 Jay-Z 成為 Square 的董事：

Square Inc. is buying a majority stake in Tidal, a music and entertainment platform owned by rapper Shawn “Jay-Z” Carter and other artists, for $297 million in cash and stock.

The deal also installs musician and businessperson Jay Z on Square’s board.

Square 跟 Tidal 的組合想像起來有點累，這算盤不知道怎麼打...

Amazon Aurora (MySQL) 推出相容於 MySQL 5.7 的版本

Amazon Aurora (MySQL) 推出相容於 MySQL 5.7 的版本了：「Amazon Aurora is Compatible with MySQL 5.7」。

不過網站上的介紹還沒更新：

Amazon Aurora is a relational database service that combines the speed and availability of high-end commercial databases with the simplicity and cost-effectiveness of open source databases. The MySQL-compatible edition of Aurora delivers up to 5X the throughput of standard MySQL running on the same hardware, and is designed to be compatible with MySQL 5.6, enabling existing MySQL applications and tools to run without requiring modification.

5.7 其中一個賣點在於支援 Spatial index (透過 R-tree)，不過 AWS 的版本看起來是自己用 B-tree 加上 Z-order curve 實做：「Amazon Aurora under the hood: indexing geospatial data using Z-order curves」。

我覺得看看就好啦，拿 244GB RAM 的 r3.8xlarge 跑 1GB 的 data set，當大家是傻逼嗎...