#数据库
#sqlite
前两天和一位同行聊起来：给传统的tp型数据库，增加列式数据处理能力，比如存取parquet数据、比如增加时序型数据的处理，好像还有点搞头。
有不少给postgresql增加了这些能力的项目了（例如pg_duckdb），我在想：也许也可以把这些做法照搬到sqlite上面。
另外，他也提到另一个观点：对于大部分企业来说，时序类+文本搜索类场景，应该覆盖了90%以上的AP需求了。
BY codedump的电报频道
Since the violent storming of Capitol Hill and subsequent ban of former U.S. President Donald Trump from Facebook and Twitter, the removal of Parler from Amazon’s servers, and the de-platforming of incendiary right-wing content, messaging services Telegram and Signal have seen a deluge of new users. In January alone, Telegram reported 90 million new accounts. Its founder, Pavel Durov, described this as “the largest digital migration in human history.” Signal reportedly doubled its user base to 40 million people and became the most downloaded app in 70 countries. The two services rely on encryption to protect the privacy of user communication, which has made them popular with protesters seeking to conceal their identities against repressive governments in places like Belarus, Hong Kong, and Iran. But the same encryption technology has also made them a favored communication tool for criminals and terrorist groups, including al Qaeda and the Islamic State.
Telegram is a cloud-based instant messaging service that has been making rounds as a popular option for those who wish to keep their messages secure. Telegram boasts a collection of different features, but it’s best known for its ability to secure messages and media by encrypting them during transit; this prevents third-parties from snooping on messages easily. Let’s take a look at what Telegram can do and why you might want to use it.
codedump的电报频道 from vn