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><H1
><A
NAME="SQL-ALTERDEFAULTPRIVILEGES"
></A
>ALTER DEFAULT PRIVILEGES</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN64522"
></A
><H2
>Name</H2
>ALTER DEFAULT PRIVILEGES -- define default access privileges</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN64527"
></A
><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>ALTER DEFAULT PRIVILEGES
[ FOR { ROLE | USER } <TT
CLASS="REPLACEABLE"
><I
>target_role</I
></TT
> [, ...] ]
[ IN SCHEMA <TT
CLASS="REPLACEABLE"
><I
>schema_name</I
></TT
> [, ...] ]
<TT
CLASS="REPLACEABLE"
><I
>abbreviated_grant_or_revoke</I
></TT
>
<SPAN
CLASS="phrase"
><SPAN
CLASS="PHRASE"
>where <TT
CLASS="REPLACEABLE"
><I
>abbreviated_grant_or_revoke</I
></TT
> is one of:</SPAN
></SPAN
>
GRANT { { SELECT | INSERT | UPDATE | DELETE | TRUNCATE | REFERENCES | TRIGGER }
[, ...] | ALL [ PRIVILEGES ] }
ON TABLES
TO { [ GROUP ] <TT
CLASS="REPLACEABLE"
><I
>role_name</I
></TT
> | PUBLIC } [, ...] [ WITH GRANT OPTION ]
GRANT { { USAGE | SELECT | UPDATE }
[, ...] | ALL [ PRIVILEGES ] }
ON SEQUENCES
TO { [ GROUP ] <TT
CLASS="REPLACEABLE"
><I
>role_name</I
></TT
> | PUBLIC } [, ...] [ WITH GRANT OPTION ]
GRANT { EXECUTE | ALL [ PRIVILEGES ] }
ON FUNCTIONS
TO { [ GROUP ] <TT
CLASS="REPLACEABLE"
><I
>role_name</I
></TT
> | PUBLIC } [, ...] [ WITH GRANT OPTION ]
GRANT { USAGE | ALL [ PRIVILEGES ] }
ON TYPES
TO { [ GROUP ] <TT
CLASS="REPLACEABLE"
><I
>role_name</I
></TT
> | PUBLIC } [, ...] [ WITH GRANT OPTION ]
REVOKE [ GRANT OPTION FOR ]
{ { SELECT | INSERT | UPDATE | DELETE | TRUNCATE | REFERENCES | TRIGGER }
[, ...] | ALL [ PRIVILEGES ] }
ON TABLES
FROM { [ GROUP ] <TT
CLASS="REPLACEABLE"
><I
>role_name</I
></TT
> | PUBLIC } [, ...]
[ CASCADE | RESTRICT ]
REVOKE [ GRANT OPTION FOR ]
{ { USAGE | SELECT | UPDATE }
[, ...] | ALL [ PRIVILEGES ] }
ON SEQUENCES
FROM { [ GROUP ] <TT
CLASS="REPLACEABLE"
><I
>role_name</I
></TT
> | PUBLIC } [, ...]
[ CASCADE | RESTRICT ]
REVOKE [ GRANT OPTION FOR ]
{ EXECUTE | ALL [ PRIVILEGES ] }
ON FUNCTIONS
FROM { [ GROUP ] <TT
CLASS="REPLACEABLE"
><I
>role_name</I
></TT
> | PUBLIC } [, ...]
[ CASCADE | RESTRICT ]
REVOKE [ GRANT OPTION FOR ]
{ USAGE | ALL [ PRIVILEGES ] }
ON TYPES
FROM { [ GROUP ] <TT
CLASS="REPLACEABLE"
><I
>role_name</I
></TT
> | PUBLIC } [, ...]
[ CASCADE | RESTRICT ]</PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="SQL-ALTERDEFAULTPRIVILEGES-DESCRIPTION"
></A
><H2
>Description</H2
><P
> <TT
CLASS="COMMAND"
>ALTER DEFAULT PRIVILEGES</TT
> allows you to set the privileges
that will be applied to objects created in the future. (It does not
affect privileges assigned to already-existing objects.) Currently,
only the privileges for tables (including views and foreign tables),
sequences, functions, and types (including domains) can be altered.
</P
><P
> You can change default privileges only for objects that will be created by
yourself or by roles that you are a member of. The privileges can be set
globally (i.e., for all objects created in the current database),
or just for objects created in specified schemas. Default privileges
that are specified per-schema are added to whatever the global default
privileges are for the particular object type.
</P
><P
> As explained under <A
HREF="sql-grant.html"
>GRANT</A
>,
the default privileges for any object type normally grant all grantable
permissions to the object owner, and may grant some privileges to
<TT
CLASS="LITERAL"
>PUBLIC</TT
> as well. However, this behavior can be changed by
altering the global default privileges with
<TT
CLASS="COMMAND"
>ALTER DEFAULT PRIVILEGES</TT
>.
</P
><DIV
CLASS="REFSECT2"
><A
NAME="AEN64551"
></A
><H3
>Parameters</H3
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="REPLACEABLE"
><I
>target_role</I
></TT
></DT
><DD
><P
> The name of an existing role of which the current role is a member.
If <TT
CLASS="LITERAL"
>FOR ROLE</TT
> is omitted, the current role is assumed.
</P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>schema_name</I
></TT
></DT
><DD
><P
> The name of an existing schema. If specified, the default privileges
are altered for objects later created in that schema.
If <TT
CLASS="LITERAL"
>IN SCHEMA</TT
> is omitted, the global default privileges
are altered.
</P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>role_name</I
></TT
></DT
><DD
><P
> The name of an existing role to grant or revoke privileges for.
This parameter, and all the other parameters in
<TT
CLASS="REPLACEABLE"
><I
>abbreviated_grant_or_revoke</I
></TT
>,
act as described under
<A
HREF="sql-grant.html"
>GRANT</A
> or
<A
HREF="sql-revoke.html"
>REVOKE</A
>,
except that one is setting permissions for a whole class of objects
rather than specific named objects.
</P
></DD
></DL
></DIV
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="SQL-ALTERDEFAULTPRIVILEGES-NOTES"
></A
><H2
>Notes</H2
><P
> Use <A
HREF="app-psql.html"
><SPAN
CLASS="APPLICATION"
>psql</SPAN
></A
>'s <TT
CLASS="COMMAND"
>\ddp</TT
> command
to obtain information about existing assignments of default privileges.
The meaning of the privilege values is the same as explained for
<TT
CLASS="COMMAND"
>\dp</TT
> under
<A
HREF="sql-grant.html"
>GRANT</A
>.
</P
><P
> If you wish to drop a role for which the default privileges have been
altered, it is necessary to reverse the changes in its default privileges
or use <TT
CLASS="COMMAND"
>DROP OWNED BY</TT
> to get rid of the default privileges entry
for the role.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="SQL-ALTERDEFAULTPRIVILEGES-EXAMPLES"
></A
><H2
>Examples</H2
><P
> Grant SELECT privilege to everyone for all tables (and views) you
subsequently create in schema <TT
CLASS="LITERAL"
>myschema</TT
>, and allow
role <TT
CLASS="LITERAL"
>webuser</TT
> to INSERT into them too:
</P><PRE
CLASS="PROGRAMLISTING"
>ALTER DEFAULT PRIVILEGES IN SCHEMA myschema GRANT SELECT ON TABLES TO PUBLIC;
ALTER DEFAULT PRIVILEGES IN SCHEMA myschema GRANT INSERT ON TABLES TO webuser;</PRE
><P>
</P
><P
> Undo the above, so that subsequently-created tables won't have any
more permissions than normal:
</P><PRE
CLASS="PROGRAMLISTING"
>ALTER DEFAULT PRIVILEGES IN SCHEMA myschema REVOKE SELECT ON TABLES FROM PUBLIC;
ALTER DEFAULT PRIVILEGES IN SCHEMA myschema REVOKE INSERT ON TABLES FROM webuser;</PRE
><P>
</P
><P
> Remove the public EXECUTE permission that is normally granted on functions,
for all functions subsequently created by role <TT
CLASS="LITERAL"
>admin</TT
>:
</P><PRE
CLASS="PROGRAMLISTING"
>ALTER DEFAULT PRIVILEGES FOR ROLE admin REVOKE EXECUTE ON FUNCTIONS FROM PUBLIC;</PRE
><P></P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN64594"
></A
><H2
>Compatibility</H2
><P
> There is no <TT
CLASS="COMMAND"
>ALTER DEFAULT PRIVILEGES</TT
> statement in the SQL
standard.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN64598"
></A
><H2
>See Also</H2
><A
HREF="sql-grant.html"
>GRANT</A
>, <A
HREF="sql-revoke.html"
>REVOKE</A
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