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Make the world somewhat safe for (not from) DELETE FROM pg_shadow;

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Assign the fixed user id 1 to the user created by initdb.
A stand-alone backend will always set the user id to 1.
(Consequently, the name of that user is no longer important.)

In stand-alone mode, the user id 1 will have implicit superuser
status, to allow repairs even if there are no users defined.

Print a warning message when starting in stand-alone mode when no
users are defined.

Disallow dropping the current user and session user.

Granting/revoking superuser status also grants/revokes usecatupd.
(Previously, it would never grant it back.  This could lead to "deadlocks".)

CREATE USER and CREATE GROUP will start allocating user ids at 100
(unless explicitly specified), to prevent accidental creation of a
superuser (plus some room for future extensions).
This commit is contained in:
Peter Eisentraut
2001-09-08 15:24:00 +00:00
parent fdbf796f36
commit c0d4d5473a
12 changed files with 191 additions and 100 deletions
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13
doc/src/sgml/user-manag.sgml
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@@ -34,12 +34,13 @@ CREATE USER <replaceable>name</replaceable>
<para>
In order to bootstrap the database system, a freshly initialized
system always contains one predefined user. This user will have
the same name as the operating system user that initialized the
area (and is presumably being used as the user that runs the
server). Thus, often an initial user <quote>postgres</quote>
exists. In order to create more users you have to first connect as
this initial user.
system always contains one predefined user. This user will have the
fixed id 1, and by default (unless altered when running
<command>initdb</command>) it will have the same name as the
operating system user that initialized the area (and is presumably
being used as the user that runs the server). Customarily, this user
will be called <quote>postgres</quote>. In order to create more
users you have to first connect as this initial user.
</para>
<para>