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author | Peter Eisentraut <peter@eisentraut.org> | 2019-05-14 14:56:58 +0200 |
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committer | Peter Eisentraut <peter@eisentraut.org> | 2019-05-14 15:44:37 +0200 |
commit | 037165ca95d854e04c0c28cfa85f1515bd852892 (patch) | |
tree | 3079a3a86320caa83bd4a6263649784410817d67 /doc/src | |
parent | eb3a1376c98a1d220354b468f4b09e4a1dca909a (diff) | |
download | postgresql-037165ca95d854e04c0c28cfa85f1515bd852892.tar.gz postgresql-037165ca95d854e04c0c28cfa85f1515bd852892.zip |
Update SQL features/conformance information to SQL:2016
Diffstat (limited to 'doc/src')
-rw-r--r-- | doc/src/sgml/features.sgml | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/doc/src/sgml/features.sgml b/doc/src/sgml/features.sgml index d6fa2c0c724..e54d8a6da78 100644 --- a/doc/src/sgml/features.sgml +++ b/doc/src/sgml/features.sgml @@ -14,10 +14,10 @@ <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 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:2006, SQL:2003, SQL:1999, - and SQL-92. Each version + from time to time; the most recent update appearing in 2016. + The 2016 version is referred to as ISO/IEC 9075:2016, or simply as SQL:2016. + The versions prior to that were SQL:2011, SQL:2008, SQL:2006, 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 @@ -79,18 +79,18 @@ </para> <para> - PostgreSQL supports most of the major features of SQL:2011. Out of + PostgreSQL supports most of the major features of SQL:2016. 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:2011. + system claims full conformance to Core SQL:2016. </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:2011</acronym> which + list of the features defined in <acronym>SQL:2016</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 @@ -133,7 +133,7 @@ <title>Unsupported Features</title> <para> - The following features defined in <acronym>SQL:2011</acronym> are not + The following features defined in <acronym>SQL:2016</acronym> are not implemented in this release of <productname>PostgreSQL</productname>. In a few cases, equivalent functionality is available. |