<h1>Frequently Asked Questions</h1>
<p><b>Q: What is the current version of PostgreSQL?</b><br />
-A: 9.2, which was released September 10, 2012.</p>
+A: 9.4, which was released December 18, 2014.</p>
-<p><b>Q: 9.2? Does that mean it's a minor release?</b><br />
-A: No, it's approximately our 23rd major release in 26 years of development. We release a new version of PostgreSQL every year, which is unique among SQL databases. Because of the long history of our project the first two decimals are major releases. Thus 9.1, 9.0 and 8.4 were all major releases. Minor releases have numbers like 9.1.5. This is similar to how Linux, Apache, and MySQL number their versions.</p>
+<p><b>Q: 9.4? Does that mean it's a minor release?</b><br />
+A: No, it's approximately our 25th major release in 28 years of development. We release a new version of PostgreSQL every year, which is unique among SQL databases. Because of the long history of our project the first two decimals are major releases. Thus 9.4, 9.1 and 9.0 were all major releases. Minor releases have numbers like 9.2.9. This is similar to how Linux, Apache, and MySQL number their versions.</p>
<p><b>Q: How is PostgreSQL licensed? How much does it cost?</b><br />
A: PostgreSQL is released under the OSI-approved PostgreSQL License. There is no fee, even for use in commercial software products. Please see <a href="http://www.postgresql.org/about/licence">http://www.postgresql.org/about/licence</a></p>
A: The PostgreSQL project enjoys the support of multiple companies who sell products or services built with PostgreSQL, and in turn contribute code, money and staff time to the project. None of them "own" PostgreSQL, nor is any individual company responsible for PostgreSQL code development. This is the same as Linux, Apache and FreeBSD.</p>
<p><b>Q: Does PostgreSQL run on the Cloud?</b><br />
-A: Yes. Like other open source databases, PostgreSQL is easy to run in virtual containers and is highly portable. Many companies have support for PostgreSQL in cloud hosting environments, including Heroku, VMware, Engine Yard, Scalr, EnterpriseDB, and Red Hat.</p>
+A: Yes. Like other open source databases, PostgreSQL is easy to run in virtual containers and is highly portable. Many companies have support for PostgreSQL in cloud hosting environments, including Heroku, Amazon, VMware, Engine Yard, Scalr, EnterpriseDB, and Red Hat.</p>
<p><b>Q: How does PostgreSQL compare to MySQL?</b><br />
A: This is a topic that can start several hours of discussion. As a quick summary, MySQL is the "easy-to-use, web developer" database, and PostgreSQL is the "feature-rich, standards-compliant" database. PostgreSQL is liberally licensed and owned by its community; MySQL is GPL-licensed and owned by Oracle. Beyond that, each database user should make his own evaluation; open source software makes doing comparisons very easy.</p>
A: To date there is one: a <a href="http://www.spec.org/jAppServer2004/results/res2007q3/jAppServer2004-20070703-00073.html">SpecJAppserver2004 benchmark</a>, which at time of publication was within 10% of the leading commercial SQL RDBMS. We are not certain when another benchmark will be published, as verifiable benchmarks are expensive and time-consuming for a not-for-profit community to undertake.</p>
<p><b>Q: When will PostgreSQL get database server clustering?</b><br />
-A: We already have it. Since no one type of clustering satisfies all needs, we have several different clustering tools which take various clustering approaches. The open source projects PostgresXC, Stado and pgPool2 are available, as well as proprietary tools such as StormDB, Greenplum Database, Aster Data, Hadapt and several others. For more advanced clustering options, see Skype's Skytools or the experimental project Postgres-R, which is being commercialized as TransLattice. Also, PostgreSQL is supported by filesystem-based clustering systems for failover, including ones from Red Hat, Microsoft, Veritas and Oracle.</p>
+A: We already have it. Since no one type of clustering satisfies all needs, we have several different clustering tools which take various clustering approaches. The open source projects PostgresXC, Postgres-XL, Stado and pgPool2 are available, as well as proprietary tools such as Translattice, Greenplum Database, Aster Data, CitusData and several others. Also, PostgreSQL is supported by filesystem-based clustering systems for failover, including ones from Red Hat, Microsoft, Veritas and Oracle.</p>
<p><b>Q: Has PostgreSQL won any awards?</b><br />
A: Several. Most recently, we won <a href="http://www.developer.com/design/article.php/10925_3721761_1">the 2008 Developer.com Award for best Database Tool</a>. Other awards we've won over the years are
listed on our <a href="http://www.postgresql.org/about/awards">awards page</a>.
</p>
-<p><b>Q: When will 9.3 come out?</b><br />
-A: The PostgreSQL project begins work on the next version of PostgreSQL in July of each year, and it generally takes 12 to 15 months to work to a release. So expect 9.3 sometime in mid to late 2013. We are the only major SQL database which releases every year.</p>
+<p><b>Q: When will 9.5 come out?</b><br />
+A: The PostgreSQL project begins work on the next version of PostgreSQL in July of each year, and it generally takes 12 to 15 months to work to a release. So expect 9.5 around September 2015. We are the only major SQL database which releases every year.</p>
-<p><b>Q: What features will 9.3 have?</b><br />
-A: As always, we can't be certain what will go in and what won't; the project has strict quality standards that not all patches can make before deadline. All we can tell you is what's being worked on, which includes: federated databases, parallel backup, new partial replication options, event triggers, an embedded database mode, and of course more performance improvements. By the time 9.3 is released, though, this feature list will have changed considerably.</p>
+<p><b>Q: What features will 9.5 have?</b><br />
+A: As always, we can't be certain what will go in and what won't; the project has strict quality standards that not all patches can make before deadline. All we can tell you is what's being worked on, which includes: BRIN indexes for big data, new partitioning, OLAP CUBEs, UPSERT, and parallel VACUUM. By the time 9.5 is released, though, this feature list will have changed considerably.</p>
<p><b>Q: How do you pronounce PostgreSQL</b><br />
A: post-GRES-que-ell, per this <a href="/files/postgresql.mp3">audio file</a>. Many people, however, just say "post-GREZ".</p>
<h2>PostgreSQL 9.4 erhöht Flexibilität, Skalierbarkeit und Performance</h2>
<p>
-## OKTOBER 2014: Die PostgreSQL Global Development Group ist hocherfreut, die Veröffentlichung von PostgreSQL 9.4, der jüngsten Version des weltweit führenden Open Source Datenbank-Systems, zu verkünden. Diese Version bringt viele neue Features, die PostgreSQLs Flexibilität, Skalierbarkeit und Performance für die unterschiedlichsten Datenbank-Anwendungszwecke verbessern, unter anderem im Bereich der JSON-Unterstützung, Replikation und Index-Performance.
+18 DEZEMBER 2014: Die PostgreSQL Global Development Group ist hocherfreut, die Veröffentlichung von PostgreSQL 9.4, der jüngsten Version des weltweit führenden Open Source Datenbank-Systems, zu verkünden. Diese Version bringt viele neue Features, die PostgreSQLs Flexibilität, Skalierbarkeit und Performance für die unterschiedlichsten Datenbank-Anwendungszwecke verbessern, unter anderem im Bereich der JSON-Unterstützung, Replikation und Index-Performance.
</p><p>
<b>Flexibilität</b>
</p><p>
PostgreSQL 9.4 erhöht Flexibilität, Skalierbarkeit und Performance
==================================================================
-## OKTOBER 2014: Die PostgreSQL Global Development Group ist hocherfreut, die Veröffentlichung von PostgreSQL 9.4, der jüngsten Version des weltweit führenden Open Source Datenbank-Systems, zu verkünden. Diese Version bringt viele neue Features, die PostgreSQLs Flexibilität, Skalierbarkeit und Performance für die unterschiedlichsten Datenbank-Anwendungszwecke verbessern, unter anderem im Bereich der JSON-Unterstützung, Replikation und Index-Performance.
+18 DEZEMBER 2014: Die PostgreSQL Global Development Group ist hocherfreut, die Veröffentlichung von PostgreSQL 9.4, der jüngsten Version des weltweit führenden Open Source Datenbank-Systems, zu verkünden. Diese Version bringt viele neue Features, die PostgreSQLs Flexibilität, Skalierbarkeit und Performance für die unterschiedlichsten Datenbank-Anwendungszwecke verbessern, unter anderem im Bereich der JSON-Unterstützung, Replikation und Index-Performance.
Flexibilität
-----------
--- /dev/null
+{%extends "base/page.html"%}
+{%block title%}PostgreSQL 9.4 Press Kit{%endblock%}
+{%block contents%}
+
+<h1>PostgreSQL 9.4 Press Kit</h1>
+
+<h2>Contents</h2>
+
+<p>
+ <a href="#original_release">Text of Original Release</a><br />
+ <a href="#features">More About The Features</a><br />
+ <a href="#download">Where to Download</a><br />
+ <a href="#docs">Documentation</a><br />
+ <a href="#license">License</a><br />
+ <a href="#contact">Contacts</a><br />
+ <a href="#graphics">Images and Logos</a><br />
+ <a href="#quoted_companies">Quoted Companies and Full Text of Quotes</a><br />
+ <a href="#companies">Corporate Support</a><br />
+</p>
+
+<img src="http://media.postgresql.org/propaganda/postgres94_sm.jpg" />
+
+<a name="original_release"></a><h2>Original Press Release</h2>
+
+<h2>PostgreSQL 9.4 Increases Flexibility, Scalability and Performance</h2>
+<p>
+18 DECEMBER 2014: The PostgreSQL Global Development Group announces the release of PostgreSQL 9.4, the latest version of the world's leading open source database system. This release adds many new features which enhance PostgreSQL's flexibility, scalability and performance for many different types of database users, including improvements to JSON support, replication and index performance.
+</p><p>
+<b>Flexibility</b>
+</p><p>
+With the new JSONB data type for PostgreSQL, users no longer have to choose between relational and non-relational data stores: they can have both at the same time. JSONB supports fast lookups and simple expression search queries using Generalized Inverted Indexes (GIN). Multiple new support functions enable users to extract and manipulate JSON data, with a performance which matches or surpasses the most popular document databases. With JSONB, table data can be easily integrated with document data for a fully integrated database environment.
+</p><p>
+"JSONB brings PostgreSQL to the JavaScript development community by allowing JSON data to be stored and queried natively. Node.js and other server-side JavaScript frameworks can benefit from the safety and robustness of PostgreSQL, while still storing data in the schema-less format that they prefer," said Matt Soldo, Product Manager, Heroku Postgres.
+</p><p>
+<b>Scalability</b>
+</p><p>
+In 9.4, Logical Decoding supplies a new API for reading, filtering and manipulating the PostgreSQL replication stream. This interface is the foundation for new replication tools, such as Bi-Directional Replication, which supports the creation of multi-master PostgreSQL clusters. Other improvements in the replication system, such as replication slots and time-delayed replicas, improve management and utility of replica servers.
+</p><p>
+"The main reason behind our immediate adoption of PostgreSQL 9.4 in production is the new Logical Decoding feature," said Marco Favale, Cartographic Production Manager of Navionics. "The ability to write custom and flexible output plugins will allow us to transparently collect changes on selected tables and replicate changes where we like, by removing heavier - and more complex to manage - trigger based replication solutions."
+</p><p>
+"Zalando relies on the stability and performance of hundreds of PostgreSQL database servers to continuously serve millions of customers all around Europe," said Valentine Gogichashvili, Team Lead Database Operations at Zalando Technologies. "We are excited to run time-delayed standby servers which work out of the box, and will evaluate the new bi-directional replication tools as soon as they are released."
+</p><p>
+<b>Performance</b>
+</p><p>
+Version 9.4 also introduces multiple performance improvements which will allow users to get even more out of each PostgreSQL server. These include:
+</p>
+<ul>
+<li>Improvements to GIN indexes, making them up to 50% smaller and up to 3X faster.
+</li><li>Concurrently updatable Materialized Views for faster, more up-to-date reporting.
+</li><li>Rapidly reload the database cache on restart using pg_prewarm.
+</li><li>Faster parallel writing to the PostgreSQL transaction log.
+</li><li>Support for Linux Huge Pages for servers with large memory.
+</li></ul>
+<p>
+"We will definitely benefit from concurrent refresh of materialised views, delayed standby servers (which will make our disaster recovery even more robust) as well as the usual performance improvements every new release carries on," added Marco Favale.
+</p>
+<a name="features"></a><h2>More About the Features</h2>
+<p>
+For explanations of the above features and others, please see the following resources:
+</p>
+<ul>
+<li><a href="/docs/9.4/static/release-9-4.html">Release Notes</a></li>
+<li><a href="/docs/9.4/static/index.html">9.4 Documentation</a></li>
+<li><a href="http://wiki.postgresql.org/wiki/What%27s_new_in_PostgreSQL_9.4">What's New In PostgreSQL 9.4 (English)</a></li>
+<li><a href="https://www.youtube.com/watch?v=oQ1LSW31Y1A&list=PLWW0CjV-Tafa2jvcjihXwSvZZKsLAsb9Y#t=2492">9.4 On The Floor presentations</a></li>
+<li><a href="/about/featurematrix">Feature matrix (English only)</a></li>
+<li><a href="https://wiki.postgresql.org/wiki/BDR_User_Guide">Bi-Directional Replication (BDR)</a></li>
+<li><a href="https://www.youtube.com/watch?v=MmzbnMqBMI0&index=28&list=PLWW0CjV-Tafa2jvcjihXwSvZZKsLAsb9Y">JSON in 9.4 Presentation</a></li>
+</ul>
+
+<a name="download"></a><h2>Downloads</h2>
+<ul>
+<li><a href="/download">Downloads page</a> with links to Windows, Linux, OSX, BSD and Solaris installers and tools.</li>
+<li><a href="/ftp/source/v9.4.0">Source Code</a></li>
+<li><a href="http://pgxn.org">PostgreSQL Extension Network</a></li>
+<li><a href="/download/product-categories">Related and Commercial Software</a></li>
+</ul>
+
+<a name="docs"></a><h2>Documentation</h2>
+
+<p>
+HTML documentation and man pages are installed with PostgreSQL, but feel free to browse, search and comment on our extensive, interactive <a href="/docs/9.4/interactive">online documentation</a>.
+</p>
+
+<a name="license"></a><h2>License</h2>
+<p>
+PostgreSQL uses the <a href="/about/licence">PostgreSQL License</a>, a BSD-like "permissive" license. This
+<a href="http://www.opensource.org/licenses/postgresql">OSI-certified license</a> is widely appreciated as flexible and business-friendly, since it does not restrict the use of PostgreSQL with commercial and proprietary applications. Together with multi-company support and public ownership of the code, our license makes PostgreSQL very popular with vendors wanting to embed a database in their own products without fear of fees, vendor lock-in, or changes in licensing terms.
+</p>
+
+<a name="contact"></a><h2>Contacts</h2>
+
+<p>Web Page</p>
+
+<a href="http://www.postgresql.org">PostgreSQL home page</a>
+
+<p>English-Language Press Inquiries</p>
+
+<p>USA, Canada and General Inquiries<br />
+PostgreSQL Press Team<br />
+<a href="mailto:press@postgresql.org">press@postgresql.org</a><br />
+Phone: +1 (347) 674-7759</p>
+
+<p>Ireland<br />
+Raymond O'Donnell<br />
+<a href="mailto:ie@postgresql.org">ie@postgresql.org</a><br />
++353 (0)87 2241365</p>
+
+<p>United Kingdom<br />
+Simon Riggs<br />
+<a href="mailto:uk@postgresql.org">uk@postgresql.org</a><br />
++44-7900-255520</p>
+
+<p>Finland<br />
+Jussi Mikkola
+<br /><a href="mailto:fi@postgresql.org">fi@postgresql.org</a>
+<br />Cell: +46-708-969691
+</p>
+
+<p>Sweden<br />
+Magnus Hagander
+<br /><a href="mailto:se@postgresql.org">se@postgresql.org</a>
+<br />Cell: +46-708-969691
+</p>
+
+<p>India<br />
+Atri Sharma<br />
+<a href="mailto:in@postgresql.org">in@postgresql.org</a><br />
+Phone: +917032803184
+</p>
+
+<p>Malaysia<br />
+Chris Travers
+<br /><a href="mailto:my@postgresql.org">my@postgresql.org</a>
+</p>
+
+<p>Australia<br />
+Arul Shaji Arulappan and Richard Sayad
+<br /><a href="mailto:au@postgresql.org">au@postgresql.org</a>
+</p>
+
+<p>For contacts in other regions, see <a href="/about/press/contact">our international contact list.</a></p>
+
+<a name="graphics">Images and Logos</a>
+
+<img src="http://media.postgresql.org/propaganda/elephant2.png" >
+
+<ul>
+<li><a href="http://media.postgresql.org/propaganda/postgres94_large.jpg">PostgreSQL 9.4 Poster Graphic</a></li>
+<li><a href="http://media.postgresql.org/propaganda/pg94_acid_large.jpg">NoSQL On Acid button</a></li>
+<li><a href="http://media.postgresql.org/propaganda/elephant.png">PostgreSQL Elephant Logo, PNG format</a></li>
+<li><a href="http://media.postgresql.org/propaganda/elephant64.jpg">PostgreSQL Elephant Icon</a></li>
+<li><a href="http://media.postgresql.org/propaganda/slonik_with_black_text_and_tagline.gif">PostgreSQL Banner with Logo, Elephant and Slogan</a></li>
+</ul>
+<p>
+All logos are available for modification and redistribution under The PostgreSQL License. The PostgreSQL name and logo are trademarks of The PostgreSQL Community Association of Canada.
+</p>
+
+<a name="quoted_companies"></a><h2>Quoted Company Information and Full Text of Quotes</h2>
+<p>
+"JSONB brings PostgreSQL to the JavaScript development community by allowing JSON data to be stored and queried natively. Node.js and other server-side JavaScript frameworks can benefit from the safety and robustness of PostgreSQL, while still storing data in the schema-less format that they prefer," said Matt Soldo, Product Manager, Heroku Postgres.
+</p><p>
+<b>About Heroku:</b> <a href="http://www.heroku.com">Heroku</a> is the leading open platform as a service (PaaS) focused on ease of use, automation, and reliability. Headquartered in San Francisco, CA, Heroku is a passionate and active supporter of Ruby technologies and cloud architecture. For more information, please visit <a href="http://www.heroku.com">our web page</a> and <a href="http://blog.heroku.com">our blog</a> or follow <a href="http://twitter.com/heroku">Heroku on Twitter</a>. Heroku is a wholly owned subsidiary of salesforce.com. Contact (English only): <a href="mailto:pr@heroku.com">Heroku PR</a>
+</p><p>
+"The main reason behind our immediate adoption of PostgreSQL 9.4 in production is the new Logical Decoding feature," said Marco Favale, Cartographic Production Manager of Navionics. "The ability to write custom and flexible output plugins will allow us to transparently collect changes on selected tables and replicate changes where we like, by removing heavier - and more complex to manage - trigger based replication solutions."
+</p><p>
+"We will definitely benefit from concurrent refresh of materialised views and delayed standby servers (which will make our disaster recovery even more robust), as well as the usual performance improvements every new release includes."
+</p><p>
+<b>About Navionics</b>: Navionics (www.navionics.com) has the world's largest database of marine and lake charts, covering the salt waters of the entire planet as well as tens of thousands of lakes and rivers. Many of these charts have been developed by way of Navionics' proprietary surveys done both in the field and with remote sensing such as satellite imagery and airborne laser scanners. Navionics is located in Italy, USA, India and Estonia with sales and service all over the world. Contact (English or Italian): <a href="mailto:mfavale@navionics.com">Marco Favale</a>
+</p><p>
+"Zalando relies on the stability and performance of hundreds of PostgreSQL database servers to continuously serve millions of customers all around Europe. We keep up with the latest development of PostgreSQL since 2010, when we rolled out PostgreSQL 9.0 Release Candidate 1, and every new release brings us more performance and usability improvements that we take advantage of practically from day one. We are excited to run time-delayed standby servers out of the box with the new PostgreSQL 9.4, and will evaluate the new Bi-Directional replication, made possible with the introduction of logical decoding. Our team is already working on improvements to our open-source monitoring tools that will take advantage of real-time statement statistics provided by the pg_stat_statements module and many enhancements it received in 9.4. Aggregate improvements, like FILTER, make writing queries with aggregate functions much easier and further empowers our colleges to write even more elegant SQL then before," said Valentine Gogichashvili, Team Lead Database Operations at Zalando Technologies.
+</p><p>
+<b>Zalando</b> is one of Europe's largest eCommerce companies, operating in 15 countries so far. At Zalando Technology we've developed most of the platform in-house including the shop, internal systems and our logistics software. When it comes to development and system operation we mainly use open source solutions and work in small, flexible teams. Our technology teams create Zalando's outstanding online shopping experience, which millions of customers enjoy every day. Visit us at <a href="http://www.zalando.de/">our web site</a> or <a href="http://tech.zalando.com/">our blog</a>
+</p>
+
+<a name="companies"></a><h2>Corporate Support</h2>
+
+<p>PostgreSQL enjoys the support of numerous companies, who sponsor developers, provide hosting resources, and give us financial support. See our <a href="http://www.postgresql.org/about/sponsors/">sponsors page</a> for some of these project supporters.</p>
+
+<p>Work on JSONB was sponsored by Engine Yard, and supported by Heroku, Andrew Dunstan, and several other contributors. Work on Logical Decoding was conducted by 2ndQuadrant. Many other companies contributed to this release.</p>
+
+<p>There is also a large community of <a href="/support/professional_support">companies offering PostgreSQL Support</a>, from individual consultants to multinational companies.</p>
+
+<p><a href="/about/donate">Donations</a> gladly accepted.</p>
+<p>Or you can buy some of this fine merchandise from our <li><a href="http://www.zazzle.com/postgresql">Zazzle PostgreSQL Store</a></li>
+
+{% endblock %}
--- /dev/null
+PostgreSQL 9.4 Increases Flexibility, Scalability and Performance
+==================================================================
+
+18 DECEMBER 2014: The PostgreSQL Global Development Group announces the release of PostgreSQL 9.4, the latest version of the world's leading open source database system. This release adds many new features which enhance PostgreSQL's flexibility, scalability and performance for many different types of database users, including improvements to JSON support, replication and index performance.
+
+Flexibility
+-----------
+
+With the new JSONB data type for PostgreSQL, users no longer have to choose between relational and non-relational data stores: they can have both at the same time. JSONB supports fast lookups and simple expression search queries using Generalized Inverted Indexes (GIN). Multiple new support functions enable users to extract and manipulate JSON data, with a performance which matches or surpasses the most popular document databases. With JSONB, table data can be easily integrated with document data for a fully integrated database environment.
+
+"JSONB brings PostgreSQL to the JavaScript development community by allowing JSON data to be stored and queried natively. Node.js and other server-side JavaScript frameworks can benefit from the safety and robustness of PostgreSQL, while still storing data in the schema-less format that they prefer," said Matt Soldo, Product Manager, Heroku Postgres.
+
+Scalability
+-----------
+
+In 9.4, Logical Decoding supplies a new API for reading, filtering and manipulating the PostgreSQL replication stream. This interface is the foundation for new replication tools, such as Bi-Directional Replication, which supports the creation of multi-master PostgreSQL clusters. Other improvements in the replication system, such as replication slots and time-delayed replicas, improve management and utility of replica servers.
+
+"The main reason behind our immediate adoption of PostgreSQL 9.4 in production is the new Logical Decoding feature," said Marco Favale, Cartographic Production Manager of Navionics. "The ability to write custom and flexible output plugins will allow us to transparently collect changes on selected tables and replicate changes where we like, by removing heavier - and more complex to manage - trigger based
+replication solutions."
+
+"Zalando relies on the stability and performance of hundreds of PostgreSQL database servers to continuously serve millions of customers all around Europe," said Valentine Gogichashvili, Team Lead Database Operations at Zalando Technologies. "We are excited to run time-delayed standby servers which work out of the box, and will evaluate the new bi-directional replication tools as soon as they are released."
+
+Performance
+-----------
+
+Version 9.4 also introduces multiple performance improvements which will allow users to get even more out of each PostgreSQL server. These include:
+
+* Improvements to GIN indexes, making them up to 50% smaller and up to 3X faster.
+* Concurrently updatable Materialized Views for faster, more up-to-date reporting.
+* Rapidly reload the database cache on restart using pg_prewarm.
+* Faster parallel writing to the PostgreSQL transaction log.
+* Support for Linux Huge Pages for servers with large memory.
+
+"We will definitely benefit from concurrent refresh of materialised views, delayed standby servers (which will make our disaster recovery even more robust) as well as the usual performance improvements every new release carries on," added Marco Favale.
+
+Links
+-----
+
+* Downloads: http://www.postgresql.org/downloads
+* Press Kit: http://www.postgresql.org/about/press/presskit94
+* Release Notes: http://www.postgresql.org/documentation/current/static/release-9-4
+* What's New in 9.4: https://wiki.postgresql.org/wiki/What%27s_new_in_PostgreSQL_9.4
+
+About PostgreSQL
+----------------
+
+PostgreSQL is the leading open source database system, with a global community of thousands of users and contributors and dozens of companies and organizations. The PostgreSQL Project builds on over 25 years of engineering, starting at the University of California, Berkeley, and has an unmatched pace of development today. PostgreSQL's mature feature set not only matches top proprietary database systems, but exceeds them in advanced database features, extensibility, security and stability. Learn more about PostgreSQL and participate in our community at: http://www.postgresql.org.
+
<h2>PostgreSQL 9.4 aumenta la flexibilidad, escalabilidad y rendimiento</h2>
<p>
-## DE DICIEMBRE, 2014: El PostgreSQL Global Development Group anuncia el lanzamiento de PostgreSQL 9.4, la última versión del sistema de bases de datos de código abierto líder en el mundo. Esta versión agrega muchas nuevas características que mejoran la flexibilidad, escalabilidad y rendimiento de PostgreSQL para diferentes tipos de usuarios de bases de datos, incluyendo mejoras al soporte para JSON, replicación y rendimiento de los índices.
+18 DE DICIEMBRE, 2014: El PostgreSQL Global Development Group anuncia el lanzamiento de PostgreSQL 9.4, la última versión del sistema de bases de datos de código abierto líder en el mundo. Esta versión agrega muchas nuevas características que mejoran la flexibilidad, escalabilidad y rendimiento de PostgreSQL para diferentes tipos de usuarios de bases de datos, incluyendo mejoras al soporte para JSON, replicación y rendimiento de los índices.
</p><p>
<b>Flexibilidad</b>
</p><p>
PostgreSQL 9.4 aumenta la flexibilidad, escalabilidad y rendimiento
==================================================================
-## DE DICIEMBRE, 2014: El PostgreSQL Global Development Group anuncia el lanzamiento de PostgreSQL 9.4, la última versión del sistema de bases de datos de código abierto líder en el mundo. Esta versión agrega muchas nuevas características que mejoran la flexibilidad, escalabilidad y rendimiento de PostgreSQL para diferentes tipos de usuarios de bases de datos, incluyendo mejoras al soporte para JSON, replicación y rendimiento de los índices.
+18 DE DICIEMBRE, 2014: El PostgreSQL Global Development Group anuncia el lanzamiento de PostgreSQL 9.4, la última versión del sistema de bases de datos de código abierto líder en el mundo. Esta versión agrega muchas nuevas características que mejoran la flexibilidad, escalabilidad y rendimiento de PostgreSQL para diferentes tipos de usuarios de bases de datos, incluyendo mejoras al soporte para JSON, replicación y rendimiento de los índices.
Flexibilidad
------------
<h2>PostgreSQL 9.4 aumenta flessibilità, scalabilità e prestazioni</h2>
<p>
-## OTTOBRE 2014: Il PostgreSQL Global Development Group annuncia il rilascio
+18 DICEMBRE 2014: Il PostgreSQL Global Development Group annuncia il rilascio
di PostgreSQL 9.4, l'ultima versione del principale sistema open source di
database relazionali.
Questa versione aggiunge molte funzionalità che aumentano la flessibilità,
PostgreSQL 9.4 aumenta flessibilità, scalabilità e prestazioni
-## OTTOBRE 2014: Il PostgreSQL Global Development Group annuncia il rilascio di PostgreSQL 9.4, l'ultima versione del principale sistema open source di database relazionali. Questa versione aggiunge molte funzionalità che aumentano la flessibilità, la scalabilità e le prestazioni di PostgreSQL per diverse tipologie di utenza, fra cui miglioramenti al supporto JSON, alla replica e alle performance degli indici.
+18 DICEMBRE 2014: Il PostgreSQL Global Development Group annuncia il rilascio di PostgreSQL 9.4, l'ultima versione del principale sistema open source di database relazionali. Questa versione aggiunge molte funzionalità che aumentano la flessibilità, la scalabilità e le prestazioni di PostgreSQL per diverse tipologie di utenza, fra cui miglioramenti al supporto JSON, alla replica e alle performance degli indici.
Flessibilità
-----------
--- /dev/null
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+<h1>PostgreSQL 9.4 \83v\83\8c\83X\83L\83b\83g</h1>
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+<li><a href="/docs/9.4/static/index.html">9.4 \95¶\8f\91</a></li>
+<li><a href="http://wiki.postgresql.org/wiki/What%27s_new_in_PostgreSQL_9.4">PostgreSQL 9.4\82Ì\90V\8b@\94\ (\89p\8cê)</a></li>
+<li><a href="https://www.youtube.com/watch?v=oQ1LSW31Y1A&list=PLWW0CjV-Tafa2jvcjihXwSvZZKsLAsb9Y#t=2492">9.4 On The Floor\81i\83X\83\89\83C\83h\81j</a></li>
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\82Í
\81A
+\8f¤\97p\82Ì\83v\83\8d\83v\83\89\83C\83G\83^\83\8a\83A\83v\83\8a\83P\81[\83V\83\87\83\93\82É\82¨\82¯\82éPostgreSQL\82Ì\8eg\97p\82ð\90§\8cÀ\82µ\82È\82¢\82½\82ß\81A\8f_\93î\82©\82Â\83r\83W\83l\83X\82É\97\98\97p\82µ\82â\82·\82¢\82±\82Æ\82É\82æ\82è\8dL\82\95]\89¿\82³\82ê\82Ä\82¢\82Ü\82·\81B
+\95¡\90\94\82Ì\8aé\8bÆ\82É\82æ\82é\83T\83|\81[\83g\82â\83\\81[\83X\83R\81[\83h\82ª\8cö\93I\82É\8f\8a\97L\82³\82ê\82Ä\82¢\82é\82±\82Æ\82Æ\82 \82¢\82Ü\82Á\82Ä\81A
+\82±\82Ì\83\89\83C\83Z\83\93\83X\8fð\8d\80\82É\82æ\82Á\82Ä\81A\97¿\8bà\81E\83x\83\93\83_\83\8d\83b\83N\83C\83\93\81E\83\89\83C\83Z\83\93\83X\8fð\8d\80\82Ì\95Ï\8dX\82È\82Ç\82Ì\90S\94z\82ª\95s\97v\82È\8e©\8eÐ\90»\95i\82Ö\82Ì\91g\8d\9e\97p\83f\81[\83^\83x\81[\83X\82ð\8b\81\82ß\82é\83x\83\93\83_\82É\81A
+PostgreSQL\82Í\94ñ\8fí\82É\90l\8bC\82ª\82 \82è\82Ü\82·\81B
+</p>
+
+<a name="contact"></a><h2>\96â\82¢\8d\87\82¹\90æ</h2>
+
+<p>WEB\83T\83C\83g</p>
+<ul>
+<li><a href="http://www.postgresql.org">PostgreSQL home page</a></li>
+<li><a href="http://www.postgresql.jp/">\93ú\96{PostgreSQL\83\86\81[\83U\89ï</a></li>
+</ul>
+
+<p>\83v\83\8c\83X\96â\82¢\8d\87\82í\82¹\90æ</p>
+<p>Japan<br />
+\93ú\96{PostgreSQL\83\86\81[\83U\89ï<br />
+<a href="mailto:jpug-staff@postgresql.jp">jpug-staff@postgresql.jp</a><br />
++81-3-5951-1214</p>
+
+<p>
\93ú
\96{
\88È
\8aO
\82Ì
\96â
\82¢
\8d\87\82í
\82¹
\90æ
\82É
\82Â
\82¢
\82Ä
\82Í<a href="/about/press/contact">
\96â
\82¢
\8d\87\82í
\82¹
\90æ
\88ê
\97\97</a>
\82ð
\8eQ
\8fÆ
\82µ
\82Ä
\82
\82¾
\82³
\82¢
\81B</p>
+
+
+<a name="graphics"></a><h2>\89æ\91\9c\82Æ\83\8d\83S</h2>
+
+<img src="http://media.postgresql.org/propaganda/elephant2.png" >
+
+<ul>
+<li><a href="http://media.postgresql.org/propaganda/postgres94_large.jpg">PostgreSQL 9.4 \83|\83X\83^\81[\89æ\91\9c</a></li>
+<li><a href="http://media.postgresql.org/propaganda/pg94_acid_large.jpg">NoSQL On Acid \83{\83^\83\93</a></li>
+<li><a href="http://media.postgresql.org/propaganda/elephant.png">PostgreSQL Elephant \83\8d\83S(PNG)</a></li>
+<li><a href="http://media.postgresql.org/propaganda/elephant64.jpg">PostgreSQL Elephant \83A\83C\83R\83\93</a></li>
+<li><a href="http://media.postgresql.org/propaganda/slonik_with_black_text_and_tagline.gif">PostgreSQL \83\8d\83S\95t\83o\83i\81[\81i\8fÛ\82Æ\83X\83\8d\81[\83K\83\93\81j</a></li>
+</ul>
+<p>
+\91S\82Ä\82Ì\83\8d\83S\82ÍPostgreSQL\83\89\83C\83Z\83\93\83X\82É\8aî\82Ã\82«\81A\8e©\97R\82É\95Ï\8dX\81A\8dÄ\94z\95z\82Å\82«\82Ü\82·\81B
+PostgreSQL\82Ì\96¼\8fÌ\82Æ\83\8d\83S\82Í\83J\83i\83_\82ÌPostgreSQL\83R\83~\83\85\83j\83e\83B\8b¦\89ï\82Ì\93o\98^\8f¤\95W\82Å\82·\81B
+</p>
+
+<a name="quoted_companies"></a><h2>\88ø\97p\82µ\82½\8aé\8bÆ\8fî\95ñ\82Æ\88ø\97p\95¶</h2>
+<b>Heroku\8eÐ</b>
+
+Heroku Postgres\8eÐ\82Ì\83v\83\8d\83_\83N\83g\83}\83l\81[\83W\83\83\81AMatt Soldo\8e\81\82Í\81A\81uJSONB\82ð\8eg\82¤\82±\82Æ\82ÅJSON\83f\81[\83^\82ð\83l\83C\83e\83B\83u\82É\8ai\94[\81A\8c\9f\8dõ\82Å\82«\82éPostgreSQL\82Í\81AJavaScript\8aJ\94\83R\83~\83\85\83j\83e\83C\82É\98N\95ñ\82Å\82·\81B
+PostgreSQL\82ð\8eg\82¦\82Î\81A\94Þ\82ç\82ª\8dD\82Þ\83X\83L\81[\83}\83\8c\83X\82Ì\83f\81[\83^\83t\83H\81[\83}\83b\83g\82ð\8eg\82¢\91±\82¯\82½\82Ü\82Ü\81ANode.js\82â\91¼\82Ì\83T\81[\83o\83T\83C\83hJavaScript\83t\83\8c\81[\83\80\83\8f\81[\83N\82É\88À\91S\90«\82Æ\8c\98\98S\90«\82ð\97^\82¦\82é\82±\82Æ\82ª\82Å\82«\82Ü\82·\81B\81v\82Æ\8c¾\82Á\82Ä\82¢\82Ü\82·\81B
+</blockquote>
+<p>
+<a href="http://www.heroku.com">Heroku\8eÐ</a> \82Í\81A(PaaS)\83T\81[\83r\83X\82Ì\8eg\82¢\82â\82·\82³\81A\8e©\93®\89»\81A\90M\97\8a\90«\82É\8fÅ\93_\82ð\82 \82Ä\82½\81A\97D\82ê\82½\83I\81[\83v\83\93\81E\83v\83\89\83b\83g\83t\83H\81[\83\80\82Å\82·\81B
+Heroku\8eÐ\82Í\83J\83\8a\83t\83H\83\8b\83j\83A\8fB\83T\83\93\83t\83\89\83\93\83V\83X\83R\82É\96{\8eÐ\82ð\92u\82«\81ARuby\8bZ\8fp\82â\83N\83\89\83E\83h\82Ì\83A\81[\83L\83e\83N\83`\83\83\82É\94M\90S\82Å\8a\88\94\82È\83T\83|\81[\83g\82ð\8ds\82Á\82Ä\82¢\82Ü\82·\81B
+
\8fÚ
\8d×
\8fî
\95ñ
\82Í
\8e\84\82½
\82¿
\82Ì<a href="http://www.heroku.com">Web
\83T
\83C
\83g</a>
\82â<a href="http://blog.heroku.com">
\83u
\83\8d\83O</a>
\82ð
\82²
\97\97\92¸
\82
\82©
\81AHeroku
\82Ì<a href="http://twitter.com/heroku">Twitter</a>
\82ð
\83t
\83H
\83\8d\81[
\82µ
\82Ä
\82
\82¾
\82³
\82¢
\81B
+Heroku\8eÐ\82Ísalesforce.com\82Ì\91S\8az\8fo\8e\91\8eq\89ï\8eÐ\82Å\82·\81B
+
\98A
\97\8d\90æ(
\89p
\8cê): <a href="mailto:pr@heroku.com">Heroku PR</a>
+</p>
+
+<b>Navionics\8eÐ</b>
+<blockquote>
+\81u\89ä\81X\82ªPostgreSQL9.4\82ð\8d¡\92¼\82®\8dÌ\97p\82µ\82½\82¢\8eå\82È\97\9d\97R\82Í\81A\90V\82µ\82¢\83\8d\83W\83J\83\8b\81E\83f\83R\81[\83f\83B\83\93\83O\8b@\94\\82É\82 \82è\82Ü\82·\81B\81v\82Æ\81ANavionics\8eÐ\82Ì\92n\90}\83v\83\8d\83_\83N\83V\83\87\83\93\81E\83}\83l\81[\83W\83\83\82ÌMarco Favale\8e\81\82Í\8c¾\82Á\82Ä\82¢\82Ü\82·\81B
+\81u\8fd\82\82Ä\8aÇ\97\9d\82Ì\95¡\8eG\82È\83g\83\8a\83K\81[\83x\81[\83X\82Ì\83\8c\83v\83\8a\83P\81[\83V\83\87\83\93\81E\83\\83\8a\83\85\81[\83V\83\87\83\93\82Ì\91ã\82í\82è\82É\81A\97Z\92Ê\82Ì\97\98\82\83J\83X\83^\83}\83C\83Y\82³\82ê\82½\8fo\97Í\83v\83\89\83O\83C\83\93\82ð\8f\91\82\82±\82Æ\82Å\81A\93Á\92è\82Ì\83e\81[\83u\83\8b\82Ì\95Ï\89»\82â\83\8c\83v\83\8a\83J\82Ì\95Ï\89»\82ð\93§\89ß\93I\82É\8eû\8fW\82Å\82«\82é\82æ\82¤\82É\82È\82é\82Ì\82Í\97Ç\82¢\82Å\82·\82Ë\81B\81v
+</br>
+\81u\90V\94Å\83\8a\83\8a\81[\83X\82Å\96\88\89ñ\91±\82¯\82Ä\82¢\82é\92Ê\8fí\82Ì\90«\94\\89ü\97Ç\82É\89Á\82¦\81A\83}\83e\83\8a\83A\83\89\83C\83Y\83h\81E\83r\83\85\81[\82Ì\83R\83\93\83J\83\8c\83\93\83g\81E\83\8a\83t\83\8c\83b\83V\83\85\82â\81i\89ä\81X\82Ì\8aù\91¶\82Ì\83f\83B\83U\83X\83^\83\8a\83J\83o\83\8a\82ð\82æ\82è\8c\98\98S\82É\82µ\82Ä\82\82ê\82é\81j\83f\83B\83\8c\83C\83h\81E\83X\83^\83\93\83o\83C\81E\83T\81[\83o\82Í\81A\95K\82¸\82â\96ð\82É\97§\82Â
+\82Æ\8am\90M\82µ\82Ä\82¢\82Ü\82·\81B\81v
+</blockquote>
+<p> <a href="http://www.navionics.com">Navionics\8eÐ</a>\82Í\92n\8b\85\91S\91Ì\82Ì\8aC\90\85\88æ\95À\82Ñ\82É\90\94\96\9c\96{\82Ì\8cÎ\82â\90ì\82ð\82à\83J\83o\81[\82·\82é\81A\90¢\8aE\8dÅ\91å\82Ì\8aC\90}\82Æ\8cÎ\8fÀ\90}\82Ì\83f\81[\83^\83x\81[\83X\82ð\8e\9d\82Á\82Ä\82¢\82Ü\82·\81B
+\82±\82ê\82ç\82Ì\92n\90}\82Ì\91½\82\82Í\81ANavionics\8eÐ\93Æ\8e©\82Ì\83t\83B\81[\83\8b\83h\83\8f\81[\83N\82â\89q\90¯\8eÊ\90^\82â\8bó\92\86\83\8c\81[\83U\83X\83L\83\83\83i\81[\82ð\8eg\82Á\82½\89\93\8au\92T\8d¸\82É\82æ\82é\91ª\97Ê\82Å\8dì\82ç\82ê\82Ä\82«\82Ü\82µ\82½\81B
+Navionics\8eÐ\82Í\83C\83^\83\8a\83A\81A\95Ä\8d\91\81A\83C\83\93\83h\82Æ\83G\83X\83g\83j\83A\82É\8b\92\93_\82ð\8e\9d\82¿\81A\90¢\8aE\92\86\82Å\94Ì\94\84\82Æ\83T\81[\83r\83X\82ð\8ds\82Á\82Ä\82¢\82Ü\82·\81B
+
\98A
\97\8d\90æ (
\89p
\8cê
\82Ü
\82½
\82Í
\83C
\83^
\83\8a\83A
\8cê): <a href="mailto:mfavale@navionics.com">Marco Favale</a>
+</p>
+
+<b>Zalando\8eÐ</b>
+<blockquote>
+\81uZalando\8eÐ\82Í\88À\92è\90«\82Æ\83p\83t\83H\81[\83}\83\93\83X\82É\97D\82ê\82½\90\94\95S\91ä\82ÌPostgreSQL\83f\81[\83^\83x\81[\83X\82É\82æ\82Á\82Ä\81A\83\88\81[\83\8d\83b\83p\8ae\92n\82É\82¢\82é\89½\95S\96\9c\90l\82à\82Ì\8cÚ\8bq\82É\8cp\91±\82µ\82½\83T\81[\83r\83X\82ð\92ñ\8b\9f\82µ\82Ä\82¢\82Ü\82·\81B
+\8e\84\82½\82¿\82ÍPostgreSQL9.0 RC1\82ª\83\8a\83\8a\81[\83X\82³\82ê\82½2010\94N\82©\82çPostgreSQL\82Ì\8dÅ\90V\94Å\82ð\88Û\8e\9d\82µ\82Ä\82¨\82è\81A\96\88\89ñ\83p\83t\83H\81[\83}\83\93\83X\82â\97\98\95Ö\90«\82ª\82æ\82è\8cü\8fã\82µ\82Ä\82¢\82é\8dÅ\90V\94Å\82Ì\89¶\8cb\82É\97^\82Á\82Ä\82¢\82Ü\82·\81B
+\8d¡\89ñ\82Ì\83\8a\83\8a\81[\83X\82Å\8eg\82¦\82é\82æ\82¤\82É\82È\82Á\82½\83^\83C\83\80\81E\83f\83B\83\8c\83C\83h\81E\83X\83^\83\93\83o\83C\83T\81[\83o\81A\82»\82µ\82Ä\8bß\82\83\8a\83\8a\81[\83X\82³\82ê\82é\82Æ\8ev\82í\82ê\82é\91o\95û\8cü\83\8c\83v\83\8a\83P\81[\83V\83\87\83\93\83c\81[\83\8b\82ð\81A\89ä\81X\82Í\94ñ\8fí\82É\8ay\82µ\82Ý\82É\82µ\82Ä\82¢\82Ü\82·\81B
+\8e\84\82½\82¿\82Ì\83`\81[\83\80\82Í\8aù\82É\81A9.4\82Å\8eó\97\9d\82³\82ê\82½\81Apg_stat_statements\83\82\83W\83\85\81[\83\8b\82â\82»\82Ì\91¼\82Ì\83\82\83W\83\85\81[\83\8b\82©\82ç\91\97\82ç\82ê\82é\83\8a\83A\83\8b\83^\83C\83\80\83X\83e\81[\83g\83\81\83\93\83g\82Ì\93\9d\8cv\8fî\95ñ\82ð\97\98\97p\82µ\82½\81A\83I\81[\83v\83\93\83\\81[\83X\83\82\83j\83^\83\8a\83\93\83O\83c\81[\83\8b\82Ì\89ü\97Ç\82ð\8en\82ß\82Ä\82¢\82Ü\82·\81B
+FILTER\82Ì\82æ\82¤\82È\8fW\96ñ\8aÖ\90\94\82Ì\89ü\97Ç\82Í\81A\8fW\96ñ\8aÖ\90\94\82ð\8eg\82Á\82½\83N\83G\83\8a\81[\82ð\82¸\82Á\82Æ\8aÈ\92P\82Å\82æ\82è\8b\97Í\82É\82µ\81A\82à\82¤\8f\82µ\83G\83\8c\83K\83\93\83g\82ÈSQL\82É\82µ\82Ä\82\82ê\82Ü\82·\81B\81v\82ÆZalando Technologies\8eÐ\82Ì\83f\81[\83^\83x\81[\83X\89^\97p\83`\81[\83\80\82Ì\83\8a\81[\83_\81AValentin Gogichashvili\8e\81\82Í\8c¾\82Á\82Ä\82¢\82Ü\82·\81B
+</blockquote>
+<p>
+Zalando\8eÐ\82Í15\82©\8d\91\88È\8fã\82Å\91\80\8bÆ\82µ\82Ä\82¢\82é\83\88\81[\83\8d\83b\83p\8dÅ\91å\82Ìe\83R\83}\81[\83X\83J\83\93\83p\83j\81[\82Ì\88ê\82Â\82Å\82·\81B
+Zalando Technology\82Å\82Í\83V\83\87\83b\83v\82â\8eÐ\93à\83V\83X\83e\83\80\81A\83\8d\83W\83X\83e\83B\83b\83N\83\\83t\83g\83E\83F\83A\82ð\8aÜ\82Þ\91g\90D\93à\82Ì\83v\83\89\83b\83g\83t\83H\81[\83\80\82Ì\91½\82\82ð\8aJ\94\82µ\82Ä\82«\82Ü\82µ\82½\81B
+\8aJ\94\95\94\96å\82â\83V\83X\83e\83\80\83I\83y\83\8c\81[\83V\83\87\83\93\95\94\96å\82Å\82Í\81A\8eå\82É\83I\81[\83v\83\93\83\\81[\83X\83\\83\8a\83\85\81[\83V\83\87\83\93\82ð\8eg\82Á\82Ä\82¨\82è\81A\8e\84\82½\82¿\82Í\8f\90l\90\94\82Å\8f_\93î\90«\82Ì\82 \82é\83`\81[\83\80\82Å\93\82¢\82Ä\82¢\82Ü\82·\81B
+\8e\84\82½\82¿\82Ì\8bZ\8fp\83`\81[\83\80\82Í\81A\90\94\95S\96\9c\90l\82à\82Ì\8cÚ\8bq\82ª\96\88\93ú\8ay\82µ\82ñ\82Å\82¢\82é\81AZalando\82Ì\97D\82ê\82½\83I\83\93\83\89\83C\83\93\83V\83\87\83b\83v\82ð\8dì\82è\82¾\82µ\82Ü\82µ\82½\81B
+
\8e\84\82½
\82¿
\82Ì <a href="http://www.zalando.de/">Web
\83T
\83C
\83g</a>
\82â<a href="http://tech.zalando.com/">
\83u
\83\8d\83O</a>
\82ð
\82²
\97\97\82
\82¾
\82³
\82¢
\81B
+</p>
+
+<a name="companies"></a><h2>\8aé\8bÆ\82É\82æ\82é\8ex\89\87</h2>
+
+<p>
+PostgreSQL\82Ì\8aJ\94\82Í\91½\82\82Ì\8aé\8bÆ\82É\82æ\82é\8ex\89\87\82ð\8eó\82¯\82Ä\82¨\82è\81A\82±\82ê\82ç\83X\83|\83\93\83T\81[\8aé\8bÆ\82Í\8aJ\94\8eÒ\82Ì\8cÙ\97p\82â\8ex\89\87\81A\83z\83X\83e\83B\83\93\83O\83\8a\83\\81[\83X\82Ì\92ñ\8b\9f\82â\8bà\91K\93I\82È\83T\83|\81[\83g\82ð\8ds\82Á\82Ä\82¢\82Ü\82·\81B
+
\82±
\82ê
\82ç
\83v
\83\8d\83W
\83F
\83N
\83g
\83X
\83|
\83\93\83T
\81[
\82Ì
\88ê
\95\94\82É
\82Â
\82¢
\82Ä
\82Í<a href="http://www.postgresql.org/about/sponsors/">
\83X
\83|
\83\93\83T
\81[
\83y
\81[
\83W</a>
\82ð
\8eQ
\8fÆ
\82µ
\82Ä
\82
\82¾
\82³
\82¢
\81B
+</p>
+
+<p>JSONB\82Ì\83v\83\8d\83W\83F\83N\83g\82ÍEngine Yard\82Ì\8fo\8e\91\82Æ Heroku\81AAndrew Dunstan\8by\82Ñ\81A\82»\82Ì\91¼\82Ì\8dv\8c£\8eÒ\82É\83T\83|\81[\83g\92¸\82¢\82Ä\82¢\82Ü\82·\81B
+ Logical Decoding\83v\83\8d\83W\83F\83N\83g\82Í2ndQuadrant\82É\82æ\82Á\82Ä\89^\89c\82³\82ê\82Ä\82¢\82Ü\82·\81B
+ \96{\83\8a\83\8a\81[\83X\82Å\82Í\91½\82\82Ì\8aé\8bÆ\82©\82ç\8añ\95t\82ð\92¸\82¢\82Ä\82¢\82Ü\82·\81B
+</p>
+<p>
+
\82Ü
\82½
\81A
\8cÂ
\90l
\83R
\83\93\83T
\83\8b\83^
\83\93\83g
\82©
\82ç
\91½
\8d\91\8aé
\8bÆ
\82Ü
\82Å
\81A<a href="/support/professional_support">PostgreSQL
\83T
\83|
\81[
\83g
\82ð
\92ñ
\8b\9f\82·
\82é
\8aé
\8bÆ</a>
\82Æ
\82¢
\82¤
\91å
\8bK
\96Í
\82È
\83R
\83~
\83\85\83j
\83e
\83B
\82à
\82 \82è
\82Ü
\82·
\81B
+</p>
+
+<p><a href="/about/donate">\8añ\95t</a>\82à\8a½\8c}\82µ\82Ä\82¢\82Ü\82·\81B</p>
+<p><li><a href="http://www.zazzle.com/postgresql">Zazzle PostgreSQL \83X\83g\83A</a>\82©\82ç\91f\93G\82È\83O\83b\83Y\82à\8dw\93ü\92¸\82¯\82Ü\82·\81B</li></p>
+
+{% endblock %}
--- /dev/null
+PostgreSQL9.4は柔軟性、スケーラビリティ、およびパフォーマンスが向上
+==================================================================
+## 2014年12月:
+PostgreSQL Global Development GroupはPostgreSQL9.4(世界をリードするオープンソースデータベース・システムの最新版)リリースを発表します。
+このリリースでは、多種多様なデータベースユーザのために、PostgreSQLの柔軟性、スケーラビリティ、および性能を高める多くの新機能を加えました。
+これには、JSONサポートやレプリケーション、インデックス性能への改良が含まれています。
+
+柔軟性
+-----------
+PostgreSQLの新しいJSONBデータ型を使うことで、ユーザはデータ・ストアにリレーショナルか非リレーショナルかを、もう選ぶ必要がありません。
+それらを同時に、両方持つことができます。
+JSONBは、Generalized Inverted Indexes(GIN)を使用することで、高速なルックアップと簡単な検索クエリーをサポートします。
+複数の新しい支援関数は、最もポピュラーな文書データベースに勝るとも劣らないパフォーマンスで、JSONデータの抽出や操作をを可能にします。
+
+
+JSONBを使う事でテーブルデータとドキュメントデータを簡単に統合でき、完全に一貫したデータベース環境として扱うことが可能です。
+Heroku Postgres社のプロダクトマネージャ、Matt Soldo氏は、「JSONBを使うことでJSONデータをネイティブに格納、検索できるPostgreSQLは、JavaScript開発コミュニテイに朗報です。
+PostgreSQLを使えば、彼らが好むスキーマレスのデータフォーマットを使い続けたまま、Node.jsや他のサーバサイドJavaScriptフレームワークに安全性と堅牢性を与えることができます。」と言っています。
+
+スケーラビリティ
+-----------
+9.4のロジカル・デコーディングはPostgreSQLのレプリケーション・ストリーム
+を読んだり、フィルタリングしたり、操作したりするための新しいAPIです。こ
+のインターフェースは、マルチマスタPostgreSQLのクラスタ作成をサポートす
+る、双方向レプリケーションのような新しいレプリケーションツールの基礎と
+なるものです。
+
+その他のレプリケーション・システムの改良、例えばレプリケーション・スロットやタイム・ディレイド・レプリカは、レプリケーションサーバの管理をしやすくし、利便性を向上します。
+
+「我々がPostgreSQL9.4を今直ぐ採用したい主な理由は、新しいロジカル・デコーディング機能にあります。」と、Navionics社の地図プロダクション・マネージャのMarco Favale氏は言っています。
+「重くて管理の複雑なトリガーベースのレプリケーション・ソリューションの代わりに、融通の利くカスタマイズされた出力プラグインを書くことで、特定のテーブルの変化やレプリカの変化を透過的に収集できるようになるのは良いですね。」
+
+「Zalando社は安定性とパフォーマンスに優れた数百台のPostgreSQLデータベースによって、ヨーロッパ各地にいる何百万人もの顧客に継続したサービスを提供しています。」とZalando Technologies社のデータベース運用チームのリーダ、Valentin Gogichashvili氏は言っています。
+
+「今回のリリースで使えるようになったタイム・ディレイド・スタンバイサー
+バ、そして近くリリースされると思われる双方向レプリケーションツールを、
+我々は非常に楽しみにしています。」
+
+パフォーマンス
+-----------
+バージョン9.4では、PostgreSQLサーバのパフォーマンスをより一層向上させることのできる機能を複数導入しました。
+以下の機能が含まれます。
+
+* 最高でサイズが50%小さくなり3倍高速になる、GINインデックスの改良
+* 並列更新可能なマテリアライズド・ビューにより、より高速かつ新しい検索データを提供
+* DB再起動の際に、pg_prewarmを使ってデータベース・キャッシュを高速再ロード
+* PostgreSQLトランザクション・ログへのより高速な並列書き込み
+
+「新版リリースで毎回続けている通常の性能改良に加え、マテリアライズド・ビューのコンカレント・リフレッシュや（我々の既存のディザスタリカバリをより堅牢にしてくれる）ディレイド・スタンバイ・サーバは、必ずや役に立つ
+と確信しています。」とMarco Favale氏はつけ加えています。
+
+リンク
+-----
+* ダウンロード: http://www.postgresql.org/downloads
+* プレスキット: http://www.postgresql.org/about/press/presskit94
+* リリースノート: http://www.postgresql.org/documentation/current/static/release-9-4
+* What's New in 9.4: https://wiki.postgresql.org/wiki/What%27s_new_in_PostgreSQL_9.4
+
+PostgreSQLについて
+----------------
+
+PostgreSQLは、数千のユーザ、貢献者、数十の企業や団体からなるグローバルなコミュニティを持つ、先進的なオープンソースデータベースシステムです。
+カリフォルニア大学バークレイ校から始まったPostgreSQLプロジェクトの開発は25年経過しており、今日では他と比較にならないペースでその開発が進んでいます。
+ PostgreSQLの成熟した機能群は、業界トップの商用データベースシステムに匹敵するだけではなく、先端的なデータベース機能、拡張性、セキュリティ、安定性という点でそれらを超えるものになっています。
+PostgreSQLの詳細や私たちのコミュニティについてはhttp://www.postgresql.orgを参照ください。
+
<h2>PostgreSQL 9.4 zwiększa elastyczność, skalowalność i wydajność</h2>
<p>
-## Październik 2014: PostgreSQL Global Development Group ogłosiła wydanie wersji 9.4 bazy PostgreSQL, lidera wśród baz danych open source. W tej wersji dodano wiele nowych cech, które zwiększają elastyczność, wydajność i skalowalność dla wielu różnych rodzajów użytkowników bazy danych, włączając w to ulepszenia obsługi typu JSON, replikacji i wydajności indeksów.
+18 Grudzień 2014: PostgreSQL Global Development Group ogłosiła wydanie wersji 9.4 bazy PostgreSQL, lidera wśród baz danych open source. W tej wersji dodano wiele nowych cech, które zwiększają elastyczność, wydajność i skalowalność dla wielu różnych rodzajów użytkowników bazy danych, włączając w to ulepszenia obsługi typu JSON, replikacji i wydajności indeksów.
</p><p>
<b>Elastyczność</b>
</p><p>
PostgreSQL 9.4 Zwiększa Elastyczność, Skalowalność i Wydajność
==================================================================
-## Październik 2014: PostgreSQL Global Development Group ogłosiła wydanie wersji 9.4 bazy PostgreSQL, lidera wśród baz danych open source. W tej wersji dodano wiele nowych cech, które zwiększają elastyczność, wydajność i skalowalność dla wielu różnych rodzajów użytkowników bazy danych, włączając w to ulepszenia obsługi typu JSON, replikacji i wydajności indeksów.
+18 Grudzień 2014: PostgreSQL Global Development Group ogłosiła wydanie wersji 9.4 bazy PostgreSQL, lidera wśród baz danych open source. W tej wersji dodano wiele nowych cech, które zwiększają elastyczność, wydajność i skalowalność dla wielu różnych rodzajów użytkowników bazy danych, włączając w to ulepszenia obsługi typu JSON, replikacji i wydajności indeksów.
Elastyczność
<h2>PostgreSQL 9.4 Increases Flexibility, Scalability and Performance</h2>
<p>
-## OCTOBER 2014: The PostgreSQL Global Development Group announces the release of PostgreSQL 9.4, the latest version of the world's leading open source database system. This release adds many new features which enhance PostgreSQL's flexibility, scalability and performance for many different types of database users, including improvements to JSON support, replication and index performance.
+18 DECEMBER 2014: The PostgreSQL Global Development Group announces the release of PostgreSQL 9.4, the latest version of the world's leading open source database system. This release adds many new features which enhance PostgreSQL's flexibility, scalability and performance for many different types of database users, including improvements to JSON support, replication and index performance.
</p><p>
<b>Flexibility</b>
</p><p>
</p><p>
"The main reason behind our immediate adoption of PostgreSQL 9.4 in production is the new Logical Decoding feature," said Marco Favale, Cartographic Production Manager of Navionics. "The ability to write custom and flexible output plugins will allow us to transparently collect changes on selected tables and replicate changes where we like, by removing heavier - and more complex to manage - trigger based replication solutions."
</p><p>
-"Zalando relies on the stability and performance of hundreds of PostgreSQL database servers to continuously serve millions of customers all around Europe," said Valentin Gogichashvili, Team Lead Database Operations at Zalando Technologies. "We are excited to run time-delayed standby servers which work out of the box, and will evaluate the new bi-directional replication tools as soon as they are released."
+"Zalando relies on the stability and performance of hundreds of PostgreSQL database servers to continuously serve millions of customers all around Europe," said Valentine Gogichashvili, Team Lead Database Operations at Zalando Technologies. "We are excited to run time-delayed standby servers which work out of the box, and will evaluate the new bi-directional replication tools as soon as they are released."
</p><p>
<b>Performance</b>
</p><p>
</p><p>
<b>About Navionics</b>: Navionics (www.navionics.com) has the world's largest database of marine and lake charts, covering the salt waters of the entire planet as well as tens of thousands of lakes and rivers. Many of these charts have been developed by way of Navionics' proprietary surveys done both in the field and with remote sensing such as satellite imagery and airborne laser scanners. Navionics is located in Italy, USA, India and Estonia with sales and service all over the world. Contact (English or Italian): <a href="mailto:mfavale@navionics.com">Marco Favale</a>
</p><p>
-"Zalando relies on the stability and performance of hundreds of PostgreSQL database servers to continuously serve millions of customers all around Europe. We keep up with the latest development of PostgreSQL since 2010, when we rolled out PostgreSQL 9.0 Release Candidate 1, and every new release brings us more performance and usability improvements that we take advantage of practically from day one. We are excited to run time-delayed standby servers out of the box with the new PostgreSQL 9.4, and will evaluate the new Bi-Directional replication, made possible with the introduction of logical decoding. Our team is already working on improvements to our open-source monitoring tools that will take advantage of real-time statement statistics provided by the pg_stat_statements module and many enhancements it received in 9.4. Aggregate improvements, like FILTER, make writing queries with aggregate functions much easier and further empowers our colleges to write even more elegant SQL then before," said Valentin Gogichashvili, Team Lead Database Operations at Zalando Technologies.
+"Zalando relies on the stability and performance of hundreds of PostgreSQL database servers to continuously serve millions of customers all around Europe. We keep up with the latest development of PostgreSQL since 2010, when we rolled out PostgreSQL 9.0 Release Candidate 1, and every new release brings us more performance and usability improvements that we take advantage of practically from day one. We are excited to run time-delayed standby servers out of the box with the new PostgreSQL 9.4, and will evaluate the new Bi-Directional replication, made possible with the introduction of logical decoding. Our team is already working on improvements to our open-source monitoring tools that will take advantage of real-time statement statistics provided by the pg_stat_statements module and many enhancements it received in 9.4. Aggregate improvements, like FILTER, make writing queries with aggregate functions much easier and further empowers our colleges to write even more elegant SQL then before," said Valentine Gogichashvili, Team Lead Database Operations at Zalando Technologies.
</p><p>
<b>Zalando</b> is one of Europe's largest eCommerce companies, operating in 15 countries so far. At Zalando Technology we've developed most of the platform in-house including the shop, internal systems and our logistics software. When it comes to development and system operation we mainly use open source solutions and work in small, flexible teams. Our technology teams create Zalando's outstanding online shopping experience, which millions of customers enjoy every day. Visit us at <a href="http://www.zalando.de/">our web site</a> or <a href="http://tech.zalando.com/">our blog</a>
</p>
"The main reason behind our immediate adoption of PostgreSQL 9.4 in production is the new Logical Decoding feature," said Marco Favale, Cartographic Production Manager of Navionics. "The ability to write custom and flexible output plugins will allow us to transparently collect changes on selected tables and replicate changes where we like, by removing heavier - and more complex to manage - trigger based
replication solutions."
-"Zalando relies on the stability and performance of hundreds of PostgreSQL database servers to continuously serve millions of customers all around Europe," said Valentin Gogichashvili, Team Lead Database Operations at Zalando Technologies. "We are excited to run time-delayed standby servers which work out of the box, and will evaluate the new bi-directional replication tools as soon as they are released."
+"Zalando relies on the stability and performance of hundreds of PostgreSQL database servers to continuously serve millions of customers all around Europe," said Valentine Gogichashvili, Team Lead Database Operations at Zalando Technologies. "We are excited to run time-delayed standby servers which work out of the box, and will evaluate the new bi-directional replication tools as soon as they are released."
Performance
-----------
projects / press.git / commitdiff