postgresql upgrade

Quick upgrade of PostgreSQL versionWrite in frontThe PostgreSQL9.5 version supports the capability of data sharding, and for future distributed considerations, prepare to upgrade the 9.1 version of the production environment to 9.5. Data migration is required in the middle.In the migration operation, in order to ensure the data integrity, generally need to be in

Label: Preface: There are two ways to upgrade PostgreSQL by using Pg_dumpall Backup and importing to a new version. The other is that this article uses the Pg_upgrade method upgrade to copy the old database files from the file level to the new version Note: Before upgrading, it is best to back up important data before upgrading after testing environment test E

After the PostgreSQL software version upgrade, you need to use Pg_upgrade to migrate the old version of the database, the specific operating parameters can refer to the official documentation, here to record the operation of the details of the problem occurred: The new version of the software in the INITDB to ensure that the locale and the old version of the software consistent, if the old version of

Stop the Old Library There's nothing to say. Initializes a new database with a new version of 9.4 There's nothing to say. Check /usr/local/cellar/postgresql/9.4.1/bin/pg_upgrade-c--link-b/usr/local/cellar/postgresql/9.3.5/bin-b/usr/local/ cellar/postgresql/9.4.1/bin/-d/usr/local/var/postgres-d/users/bigzhu/pg94-B old version Database bin directory-B New vers

1. Initial state: Master,slave are running states.2. Upgrade processMaster1). Turn off the master record last checkpoint location (latest checkpoint locations), which is where the downtime begins (this is where your downtime starts).The Postgres user executes the following command:$ pg_ctl-d $PGDATA stop-m Fast$ pg_controldata | grep "Latest Checkpoint location"$ Latest Checkpoint location:0/c6198402). Close slave Compare last checkpoint$ pg_ctl-d $PG

# # installs ReadLine dependent $ cd/usr/downloads$ wget-c Https://ftp.postgresql.org/pub/source/v9.5.0/po stgresql-9.5.0.tar.bz2$ tar-xvf postgresql-9.5.0.tar.bz2$ cd postgresql-9.5.0$./configure--prefix=/usr/local/ programs/postgresql$ make$ su$ make install$/sbin/ldconfig/usr/local/programs/postgresql/lib # # Refre

the decoupling of computing and storage, it is more convenient to actively maintain the host, which greatly reduces the possibility of data loss. Although the probability of storage failure is small, but the impact surface is very large, so we do not neglect the protection of storage failures. Both locally and remotely we have built PostgreSQL's slave libraries, both of which use asynchronous replication strategies between them and the main repository. If there is a problem with the main librar

Upgrade _ Oracle graphical upgrade (dbca database creation after upgrade)-upgrade 10.2.0.1.0 to 10.2.0.5.0 and dbca10.2.0.5.0 **************************************** ******************************** ************** Original Works are from the blog of "Deep Blue blog". You are welcome to repost them. Please indicate the

(1) User PracticalityProgram: Createdb creates a new PostgreSQL database (same as SQL statement: Create Database) Createuser creates a new PostgreSQL user (same as SQL statement: create user) Dropdb deletes a database Dropuser: delete a user Pg_dump exports the PostgreSQL database to a script file Pg_dumpall: export all

PostgreSQL database server listener settings and Client Connection Methods tutorial, postgresql Server As we all know, PostgreSQL is a free object-relational database server (Database Management System). It is an open-source database system that can be used for free. This article describes in detail the listener settings and Client Connection Methods of the

In the case of manual installation (for the case where the source code is compiled for PG or the decompressed version is installed for PG), PG does not start automatically when it is started, and stops automatically when it is turned off, as a DBA, this is obviously unacceptable. 1. Self-starting services in Windows In Windows, you can use the pg_ctl command to generate the postgresql service and enable it to start itself. In fact, the installation v

PostgreSQL installation and configuration tutorial on Windows and postgresql installation tutorial PostgreSQL extension PostGIS is the most famous open source GIS database.Installing PostgreSQL is the first step. 1. Download the binary Installation File of PostgreSQL.

In-depth interpretation of sequences in PostgreSQL and their related functions, and interpretation of postgresql I. Introduction A sequence object (also called a SEQUENCE generator) is a special single-row table created using create sequence. A sequence object is usually used to generate a unique identifier for a row or table. Ii. Create a sequence Method 1: Specify the field type as serial directly in the

PostgreSQL tutorial (5): Functions and operators (1), postgresql Operators I. logical operators: Common logical operators include AND, OR, and not. Its semantics is exactly the same as that of logical operators in other programming languages. Ii. Comparison operators: The following is a list of comparison operators provided by PostgreSQL: The comparison operator

: There are various types of xlog records (for example, Heap,btree,clog,storage,gin, and Standby records, just to name a few).Xlog Records Backward links. This way, each entry points to the previous entry in the file. In this way, we can fully believe that we have found the end of the record as long as we want to point to the pointer to the previous entry.make XLOG with certaintyAs you can see, a change could trigger many xlog entries. This is true for all kinds of statements, such as a large DE

PostgreSQL tutorial (13): database management details, postgresql details I. Overview: A database can be considered as a name set of an SQL object (database object). Generally, each database object (table, function, etc.) belongs to only one database. However, for some system tables, such as pg_database, it belongs to the entire cluster. More accurately, a database is a set of patterns, and a schema contain

to re-compile and run it. Online debugging cannot be performed during running, but logs can only be played. In view of the above problems, we finally gave up. However, if you use gdb for debugging in linux, you cannot hold it. So use eclipse. Reference: http://wiki.postgresql.org/wiki/Working_with_Eclipse [1] My system environment: Centos6.4 _ x64 Gcc.4.4.7 Eclipse-c/c ++ kepler Postgresql 9.3 The following is my configuration process:1. install ne