postgres.git / summary / log / commit / refs
commit babf8f1c3825fdcd416caa90e51af360a613ea32
Author: Tom Lane <tgl@sss.pgh.pa.us>
Date: Sat May 06 18:19:47 2017 +0000
Document current_role.
This system function has been there a very long time, but somehow escaped
being listed in func.sgml.
Fabien Coelho and Tom Lane
Discussion: https://postgr.es/m/alpine.DEB.2.20.1705061027580.3896@lancre
doc/src/sgml/func.sgml | 22 ++++++++++++++++++++--
1 file changed, 20 insertions(+), 2 deletions(-)
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 02dcd064374..2e7e2e2b251 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -13440,6 +13440,12 @@ postgres=# SELECT * FROM unnest2(ARRAY[[1,2],[3,4]]);
by the client (might contain more than one statement)</entry>
</row>
+ <row>
+ <entry><literal><function>current_role</function></literal></entry>
+ <entry><type>name</type></entry>
+ <entry>equivalent to <function>current_user</function></entry>
+ </row>
+
<row>
<entry><literal><function>current_schema</function>[()]</literal></entry>
<entry><type>name</type></entry>
@@ -13551,8 +13557,11 @@ postgres=# SELECT * FROM unnest2(ARRAY[[1,2],[3,4]]);
<note>
<para>
- <function>current_catalog</function>, <function>current_schema</function>,
- <function>current_user</function>, <function>session_user</function>,
+ <function>current_catalog</function>,
+ <function>current_role</function>,
+ <function>current_schema</function>,
+ <function>current_user</function>,
+ <function>session_user</function>,
and <function>user</function> have special syntactic status
in <acronym>SQL</acronym>: they must be called without trailing
parentheses. (In PostgreSQL, parentheses can optionally be used with
@@ -13572,6 +13581,10 @@ postgres=# SELECT * FROM unnest2(ARRAY[[1,2],[3,4]]);
<primary>current_query</primary>
</indexterm>
+ <indexterm>
+ <primary>current_role</primary>
+ </indexterm>
+
<indexterm>
<primary>current_schema</primary>
</indexterm>
@@ -13623,6 +13636,11 @@ postgres=# SELECT * FROM unnest2(ARRAY[[1,2],[3,4]]);
functions with the attribute <literal>SECURITY DEFINER</literal>.
In Unix parlance, the session user is the <quote>real user</quote> and
the current user is the <quote>effective user</quote>.
+ <function>current_role</function> and <function>user</function> are
+ synonyms for <function>current_user</function>. (The SQL standard draws
+ a distinction between <function>current_role</function>
+ and <function>current_user</function>, but <productname>PostgreSQL</>
+ does not, since it unifies users and roles into a single kind of entity.)
</para>
<para>
[parent: f692583ddbe1]