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author | Peter Eisentraut <peter_e@gmx.net> | 2012-05-17 09:50:04 +0300 |
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committer | Peter Eisentraut <peter_e@gmx.net> | 2012-05-17 09:50:04 +0300 |
commit | 939ec9b8a4cdd0c9ed9d1d85390d44942cd2edf6 (patch) | |
tree | 2e03de0ef8ef557b658a358da18d24e26ef5a1a7 /doc/src | |
parent | be6d1c88a4e6f563adac54483f3fc07ed8d8d99e (diff) | |
download | postgresql-939ec9b8a4cdd0c9ed9d1d85390d44942cd2edf6.tar.gz postgresql-939ec9b8a4cdd0c9ed9d1d85390d44942cd2edf6.zip |
Update SQL features/conformance information to SQL:2011
Diffstat (limited to 'doc/src')
-rw-r--r-- | doc/src/sgml/features.sgml | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/doc/src/sgml/features.sgml b/doc/src/sgml/features.sgml index 01d3ed91c57..6c22d698673 100644 --- a/doc/src/sgml/features.sgml +++ b/doc/src/sgml/features.sgml @@ -14,9 +14,9 @@ <para> The formal name of the SQL standard is ISO/IEC 9075 <quote>Database Language SQL</quote>. A revised version of the standard is released - from time to time; the most recent update appearing in 2008. - The 2008 version is referred to as ISO/IEC 9075:2008, or simply as SQL:2008. - The versions prior to that were SQL:2003, SQL:1999, and SQL-92. Each version + from time to time; the most recent update appearing in 2011. + The 2011 version is referred to as ISO/IEC 9075:2011, or simply as SQL:2011. + The versions prior to that were SQL:2008, SQL:2003, SQL:1999, and SQL-92. Each version replaces the previous one, so claims of conformance to earlier versions have no official merit. <productname>PostgreSQL</productname> development aims for @@ -50,8 +50,8 @@ </para> <para> - The <acronym>SQL:2008</acronym> and <acronym>SQL:2003</acronym> - standard versions are also split into a number + The standard versions beginning with <acronym>SQL:2003</acronym> + are also split into a number of parts. Each is known by a shorthand name. Note that these parts are not consecutively numbered. @@ -78,18 +78,18 @@ </para> <para> - PostgreSQL supports most of the major features of SQL:2008. Out of + PostgreSQL supports most of the major features of SQL:2011. Out of 179 mandatory features required for full Core conformance, PostgreSQL conforms to at least 160. In addition, there is a long list of supported optional features. It might be worth noting that at the time of writing, no current version of any database management - system claims full conformance to Core SQL:2008. + system claims full conformance to Core SQL:2011. </para> <para> In the following two sections, we provide a list of those features that <productname>PostgreSQL</productname> supports, followed by a - list of the features defined in <acronym>SQL:2008</acronym> which + list of the features defined in <acronym>SQL:2011</acronym> which are not yet supported in <productname>PostgreSQL</productname>. Both of these lists are approximate: There might be minor details that are nonconforming for a feature that is listed as supported, and @@ -132,7 +132,7 @@ <title>Unsupported Features</title> <para> - The following features defined in <acronym>SQL:2008</acronym> are not + The following features defined in <acronym>SQL:2011</acronym> are not implemented in this release of <productname>PostgreSQL</productname>. In a few cases, equivalent functionality is available. |