postgresql function return query

PostgreSQL 9.5.1 official document Study Notes This document is applicable to the latest version of PostgreSQL 9.5.1. I am new to PostgreSQL and may not miss this article. please correct me. With more understanding, this article [may] will be

The target of PostgreSQL is very similar to that of the current MySQL database. So what are the advantages of PostgreSQL? This article will be explained to you. This article introduces the basic concepts of PostgreSQL's transaction processing

MySQL vs. PostgreSQL MysqlRelatively young, appearing for the first 1994 years. It claims to be the most popular open source database. MySQL is the M in the lamp (for web development packages, including Linux, Apache, and Perl/php/python). Most

Recently prepared for PostgreSQL database development related knowledge, this article summarizes the PPT content through the blog record sharing, this essay's main content is to introduce the PostgreSQL database basic information, and how to use the

Originally wanted to find the PostgreSQL database occupy Space Command found this blog, found that the provision of severalcommand is useful (but there are several senses that are sucks.) =), so he translated it over. In addition this article is 09,

PostgreSQL code analysis, query optimization, canonicalize_qual, postgresql Here, we have finished sorting out the part of the regular expression. The reading order is as follows: I. PostgreSQL code analysis, query optimization,

: Network Disk DownloadContent Profile ...This book will help you understand and use the PostgreSQL open source database system. Not only will you learn about enterprise features in versions 9.2, 9.3, and 9.4, but you'll also find that PostgreSQL is

2. Can optimize the execution of the statementThe common feature of the optimized statements is that they are processed by the query compiler to generate an inquiry plan tree, which is handled by the executor (Executor). The module provides three

After the previous text PostgreSQL compilation installation and debugging (a), continue to talk about the installation and debugging PostgreSQL.The previous article explained how to compile and install PostgreSQL on a Linux system, and this time

I. Index type:PostgreSQL provides a variety of index types: B-tree, hash, GIST, and gin. Because they use different algorithms, each index type has a suitable Query type, saving time and resources, the create Index Command creates a B-tree index.1.