POSTGRES-XL is a fully acid-compliant, open-source, easy to scale, multi-tenant security. Support share-nothing; Support massive data parallel processing-mpp (massively Parallel processing). is not very similar to Greenplum. Host Assignment3 host,
PostgreSQL provides developers with a rich set of tools to manage concurrent access to data. Internally, data consistency is maintained by using a multi-version model (multi-version concurrency control, MVCC). This means that each SQL statement sees
Psql: Fatal error: User "Postgres" Ident authentication failed1 after installing the PostgreSQL database, you need to initialize and some configuration rails project to connect PostgreSQL.After the PostgreSQL data is installed (the Yum command is
Problem: Fatal error: User "Postgres" Ident authentication failedNote: This is because there is no remote access configured and authentication method has not changed, only need to change the use of account password authentication.Workaround: Locate
Rails connection postgresql error: psql: Fatal error: User "s" Ident authentication failed, psqlpostgresPsql: Fatal error: User "s" Ident authentication failed
1. After the postgresql database is installed, you must initialize and configure some
Summary of Postgres operations in Ubuntu
1.Basic operation commands
After the installation is complete, PostgreSQL creates a database user account named Postgres by default. It is a super Administrator account like the root account of MySQL
"Peer Authentication" means that it ' s comparing your database username against your Linux username. It should work if your ' re logged in as postgres . You probably don ' t want md5 pg_hba to hits that rule in, as the postgres database user
Function Introduction
POSTGRES-XC/XL/X2 is an open source project. It provides a multiple-master synchronous, transparent, PostgreSQL cluster solution. Unlike other cluster tools, it has a strong scalability when writing data, and introduces the
1. sudo apt-get install PostgreSQL #安装psql2. Su passwd postgres #设置postgres账户的密码3. postgresql.conf sets the value of the Listen_addresses key in the file to4. pg_hba.conf the configuration file, add the following configuration under the host all 127.
Layout:postPreliminary use of Title:postgres and OSMDate:2016-9-20Categories:blogTags: [map development] Description: Map Development
This paper mainly includes the following content PostgreSQL database, used to store map raw data osm2pgsql used to
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.