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Allow CURRENT_ROLE where CURRENT_USER is accepted

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In the particular case of GRANTED BY, this is specified in the SQL
standard.  Since in PostgreSQL, CURRENT_ROLE is equivalent to
CURRENT_USER, and CURRENT_USER is already supported here, adding
CURRENT_ROLE is trivial.  The other cases are PostgreSQL extensions,
but for the same reason it also makes sense there.

Reviewed-by: Vik Fearing <vik@postgresfriends.org>
Reviewed-by: Asif Rehman <asifr.rehman@gmail.com>
Reviewed-by: Alvaro Herrera <alvherre@2ndquadrant.com>
Discussion: https://www.postgresql.org/message-id/flat/f2feac44-b4c5-f38f-3699-2851d6a76dc9%402ndquadrant.com
This commit is contained in:
Peter Eisentraut
2020-09-17 11:39:28 +02:00
parent 16fa9b2b30
commit 45b9805706
48 changed files with 537 additions and 419 deletions
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4
doc/src/sgml/ref/create_user_mapping.sgml
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@@ -21,7 +21,7 @@ PostgreSQL documentation
<refsynopsisdiv>
<synopsis>
CREATE USER MAPPING [ IF NOT EXISTS ] FOR { <replaceable class="parameter">user_name</replaceable> | USER | CURRENT_USER | PUBLIC }
CREATE USER MAPPING [ IF NOT EXISTS ] FOR { <replaceable class="parameter">user_name</replaceable> | USER | CURRENT_ROLE | CURRENT_USER | PUBLIC }
SERVER <replaceable class="parameter">server_name</replaceable>
[ OPTIONS ( <replaceable class="parameter">option</replaceable> '<replaceable class="parameter">value</replaceable>' [ , ... ] ) ]
</synopsis>
@@ -67,7 +67,7 @@ CREATE USER MAPPING [ IF NOT EXISTS ] FOR { <replaceable class="parameter">user_
<listitem>
<para>
The name of an existing user that is mapped to foreign server.
<literal>CURRENT_USER</literal> and <literal>USER</literal> match the name of
<literal>CURRENT_ROLE</literal>, <literal>CURRENT_USER</literal>, and <literal>USER</literal> match the name of
the current user. When <literal>PUBLIC</literal> is specified, a
so-called public mapping is created that is used when no
user-specific mapping is applicable.