INGRES于1975-1977年在加州大学开发,后来又做了分布式、抽象数据等一系列的扩展,但人们很快发现在INGRES现有的架构上很难添加一些新的功能,所以开发团队重新开发了Postgres,Postgre后来又被PostgreSQL取代。 Postgres最大的贡献是abstract data type (ADT) system,在主流的数据库中添加用户定义类型和函数用的都是Postgres的...
M. Stronebraker, E. Hanson, and C.-H. Hong. “The Design of the POSTGRES Rules System.” in The POSTGRES Papers (M. Stonebraker and L.A. Rowe, eds.), Memorandum No. UCB/ERL/M86/85, Electronics Research Laboratory, University of California, Berkeley, California (November 1986)....
The Art of PostgreSQL is the new title of“Mastering PostgreSQL in Application Development”, acclaimed one of the very best resources around to learn SQL! Improved Book Design Because the first edition of the book has been so well received, the second edition is now available as a redesigned...
(the money paid for) the sending of a letteretcby post.The postage was $1.20.franqueo,porte ˈpostaladjective of, or concerning, the system of sending lettersetc.the postal service.postal postage stamp a small printed label fixed to a letter, parceletcto show that postage has been paid...
django.contrib.humanize django.contrib.postgres Browse Prev:django.contrib.humanize Next:django.contrib.postgres Table of contents General Index Python Module Index Download: Offline (development version):HTML|PDF|ePub Provided byRead the Docs.
Continuous aggregates are one of the most popular features of TimescaleDB and one of the ones I’m most proud of, partially because I helped design them. We were recently working on a revamp of continuous aggregates, and as we were discussing the changes, I real...
1)The use of exists in the Rule syntax is only suitable for a single insert statement (use the volatile function to solve this problem). postgres=# create table e(id int, info text); CREATE TABLE postgres=# create rule r1 as on insert to e where exists (select 1 from e t1 where ...
github-hall-of-fame –Hall of Fame for spectacular things on Github. GoBooks –Golang books. go-is-not-good –Articles that complain about Golang's imperfection. go-must-watch –Must-watch videos about Golang. go-patterns –Go design patterns, recipes and idioms http://tmrts.com/go-...
If we had gone far enough in the project to have already written our models, we'd run a migration instead. And in that case Django would do the work of setting up the schema in the new database for us. We're a Postgres shop and so we usually design the database first. Your workf...
Understand your problems: scalability problem (fast for a single user but slow under heavy load) or performance problem (slow for a single user) by reviewing somedesign principlesand checking howscalabilityandperformanceproblems are solved at tech companies. The section ofintelligenceare created for th...