[PostgreSQL 15] Improvements to UNIQUE and NULL in PostgreSQL 15

Original link: https://www.lifengdi.com/archives/transport/technology/3917 To sum up this improvement in one sentence: Support unique constraints and indexes treat null values ​​as the same value. Instead of indexing null values ​​into distinct values, you can now treat null values ​​as the same value by creating a constraint using unique nulls not distinct. Create an example table in […]

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breakfast

Original link: https://laozhang.org/archives/3172.html I have children at home during summer vacation, and I rarely have time to sit down and write blogs, so other people’s blogs are updated frequently during vacation, but my summer vacation blog is not updated, there is no way […] This article is reprinted from: https://laozhang.org/archives/3172.html This site is for inclusion

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Goose

Original link: https://s3-eu-west-1.amazonaws.com/dailyartartwork/img-2022061362a71cae1933e Kyriak Kostandi was a well-known Greek-Ukrainian painter and art scholar. As a member of the Russian Realist art movement Peredvizhniki (literally “touring”), he also produced several Impressionist paintings; today’s Geese is a good example. Kostandi is a representative of the South Russian Artists Association, founded in 1890 by Odessa painters. In that

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The open source community is constantly tearing up, and it is not clean to be a programmer

Produced | OSC Open Source Community (ID: oschina2013) Earlier this year, we reported that ” Father of Swift officially quits Swift core team after being insulted and yelled at by multiple people “. Such incidents of “language violence” and “cyber violence” are not uncommon in the open source community and even the entire IT community.

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Rao Yi bombarded the CEO of BGI: pseudoscience, deception, Yu Minhong is the head of the group of fools; former Tencent employees sought 13 million overtime pay and received 90,000 compensation; Huawei recruited talented youngsters again | Leifeng Morning Post

Huawei wants to recruit talented young people again, and the highest annual salary is 1.82 million yuan to 2.01 million yuan On July 22, Huawei’s recruitment officer Weibo released the “Genius Boys” recruitment plan. This is the second time this year since April 25 that Huawei has issued a “genius boy” call to the world.

Rao Yi bombarded the CEO of BGI: pseudoscience, deception, Yu Minhong is the head of the group of fools; former Tencent employees sought 13 million overtime pay and received 90,000 compensation; Huawei recruited talented youngsters again | Leifeng Morning Post Read More »

Zhong Hua’s Commentary: Answering the Issues of the Times and Lighting Up the Journey of Rejuvenation

Xinhua News Agency, Beijing, July 24th Question: Answering the issues of the times illuminates the journey of rejuvenation Zhong Hua on The power of truth travels through time and space, and the light of thought illuminates the future. Since the 18th National Congress of the Communist Party of China, the Chinese Communists, mainly represented by

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Tin-produced Microchip acquires Ampleon from the Netherlands for over 10 billion yuan

Ampleon is a developer of RF power chip products. Its products mainly include avionics LDMOS transistors, L-band transistors, GaN devices, etc. The products are mainly used in major communication base station equipment manufacturers, and are widely used in aerospace, lighting, energy transmission and other fields . Tin-produced Microchip recently completed the acquisition of Ampleon, the

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Apache DolphinScheduler receives nearly $10 million in angel round financing

Apache DolphinScheduler is a cloud-native DataOps platform provider dedicated to helping enterprises adapt to the data processing and governance needs of the big data and cloud-native era. Apache DolphinScheduler raises nearly $10 million in angel funding. This round of financing was led by Kaitai Capital and Blue Run Ventures. This article is reproduced from: https://www.itjuzi.com/investevent/13387450

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BAI Capital raised funds and completed the first fundraising of 700 million US dollars

BAI Capital announced that it has recently completed the first fundraising of US$700 million. This is the first time that the original Bertelsmann Asia Investment Fund was independent and raised funds externally. It exceeded its target and won investment from many internationally renowned institutional investors such as sovereign wealth funds, large insurance companies, Internet giants

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