postgresql update returning

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PostgreSQL 9.5.1 official document Study Notes

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

PostgreSQL in Tencent Data Warehouse TDW use tutorial

As an off-line data analysis system, TDW has a good performance advantage in dealing with massive data by parallel computing. But Tencent knows, want to use a all-inclusive system to solve all the problems are generally unrealistic, the same, TDW

A Brief Introduction to Ruby on Rails's support for PostgreSQL array types, railspostgresql

A Brief Introduction to Ruby on Rails's support for PostgreSQL array types, railspostgresql I am very happy to announce that Rails 4.0 now supports PostgreSQL array types. you can easily create fields of the array type through: array => true in

Use a PostgreSQL database for geo-location app

The earthdistance () function in postgreSQL is used in the project to calculate the distance between two points on the earth. There is too little Chinese information. I found a good English article, hope to help those who will use earthdistance in

Use postgreSQL for geo-location-based Apps

Preface:The earthdistance () function in postgreSQL is used in the project to calculate the distance between two points on the earth. There is too little Chinese information. I found a good English article, hope to help those who will use

Go language using PostgreSQL database

This is a creation in Article, where the information may have evolved or changed. Go language using PostgreSQL database PostgreSQL compared to MySQL, it's a little bigger because it's designed to replace Oracle. So using PostgreSQL in enterprise

Brief introduction to Ruby on Rails support for PostgreSQL array types _ruby topics

I'm very happy to announce that Rails 4.0 now supports PostgreSQL array types. You can easily create a field of an array type in migration through: array => true. You can also add other options when you create fields of an array type (Length,default,

Using PostgreSQL database to do location app application _postgresql

Project used in the PostgreSQL earthdistance () function to calculate the distance between two points on the Earth, the Chinese information is too little, I found an English, speak a very good article, I hereby translate, hope to be able to help

Read with me. PostgreSQL Source (10)--executor (--scan node of the query execution module (bottom))

Then read with me. PostgreSQL source Code (ix)--executor (the--scan node (top) of the query execution module), this chapter ends the remaining seven scan nodes. T_SubqueryScanState, T_FunctionScanState, T_ValuesScanState, T_CteScanState,

Read with me. PostgreSQL Source (16)--executor (--control node of the query execution module (bottom))

5.ModifyTable nodeLet's look at an example of a modifytable node:postgres=# explain update test_01 set id = 5 where name = 'xxx'; QUERY PLAN--------------------------------------------------------------- Update on test_01

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