PostgreSQL

pg_terminate_backend() operation and maintenance transformation -- nonsuperuser supports kill autovacuum worker

1, Background introduction In view of security considerations, the superuser of the database is generally only in the ha...
13:44 29 November 2021

Slow SQL statement of PostgreSQL

Author: Song Shaohua 1, Reading guide Optimization is ver...
1:43 10 November 2021

odoo14-Ubuntu20 installation odoo14

In order to facilitate the ultimate experience of the later spectators, I will write the path in the code. I hope you wi...
23:50 28 September 2021

Oracle to PostgreSQL start with / connect by

Oracle hierarchical query start with / connect by in Orac...
13:54 6 September 2021

C ා data operation series - Introduction to 19 FreeSql

0. Preface The author of FreeSql recommended...
1:40 29 May 2020

[open source]. Net orm FreeSql 1.5.0 latest version (serial number: long time no see)

The beginning of nonsense This article is the...
1:03 26 May 2020

Maven combines JaCoCo Co and Sonar to see if you've written enough tests

1 Introduction Unit testing is an important p...
12:50 20 May 2020

Talk about debezium's snapshot change record emitter

order This paper mainly studies the snapshot ...
12:03 13 May 2020

Python 3 automated file batch processing (text, PDF; read, filter, export)

With the concise syntax of Python 3 script language and the rich class library of advanced language, several "scrip...
10:04 8 May 2020

Data Source Management | Synchronize data and source analysis based on DataX components

Source code for this article: GitHub. Click here || GitEE. Click here 1. Introduction to DataX Tools ...
20:13 5 May 2020

Aliyun server building Docker

Software installation First install the appro...
15:41 4 May 2020

Record a production accident -- disk full

Written in front Today, in the production env...
7:52 10 February 2020

Interpretation of PostgreSQL source code (108) - background process (PGPROC data structure)

PostgreSQL uses the process mode. For each client, it will Fork a background process to respond to the client's request. This section describes ...
11:33 2 December 2019

Some problems in Ubuntu 18.04 PostgreSQL 11 apt default installation

First, install the software by default (this article takes PostgreSQL 11.1 as an example, and other versions are similar). sudo apt install postgresql...
9:33 2 December 2019

PostgreSQL remote link server configuration

PostgreSQL server needs to be configured to be remotely linked by users Profile:pg_hba.conf controls access security and manages the access rights of ...
8:08 2 December 2019

Pgpool-II + PostgreSQL one main source and two standby source compiling environment

Host IP Virtual IP server1 192.168.222.141 192.168.222.200 server2 192.168.222.142 server3 192.168.222.143 Item Value Detail PostgreSQL version 10.10...
12:23 17 October 2019

Default Sorting Behavior and Query of NULL Value in PostgreSQL Database, Index Definition Specification - nulls first last, asc desc

Label PostgreSQL, NULLS FIRST, NULLS LAST, ASC, DESC, default behavior, sort background In the database, NULL value refers to the value of UNKNOWN, wh...
15:51 24 December 2018