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Add grantable MAINTAIN privilege and pg_maintain role.

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Allows VACUUM, ANALYZE, REINDEX, REFRESH MATERIALIZED VIEW, CLUSTER,
and LOCK TABLE.

Effectively reverts 4441fc704d. Instead of creating separate
privileges for VACUUM, ANALYZE, and other maintenance commands, group
them together under a single MAINTAIN privilege.

Author: Nathan Bossart
Discussion: https://postgr.es/m/20221212210136.GA449764@nathanxps13
Discussion: https://postgr.es/m/45224.1670476523@sss.pgh.pa.us
This commit is contained in:
Jeff Davis
2022-12-13 17:33:28 -08:00
parent c6f6646bb0
commit 60684dd834
36 changed files with 338 additions and 352 deletions
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16
doc/src/sgml/ref/lock.sgml
View File

@@ -165,11 +165,17 @@ LOCK [ TABLE ] [ ONLY ] <replaceable class="parameter">name</replaceable> [ * ]
<title>Notes</title>
<para>
<literal>LOCK TABLE ... IN ACCESS SHARE MODE</literal> requires <literal>SELECT</literal>
privileges on the target table. <literal>LOCK TABLE ... IN ROW EXCLUSIVE
MODE</literal> requires <literal>INSERT</literal>, <literal>UPDATE</literal>, <literal>DELETE</literal>,
or <literal>TRUNCATE</literal> privileges on the target table. All other forms of
<command>LOCK</command> require table-level <literal>UPDATE</literal>, <literal>DELETE</literal>,
To lock a table, one must ordinarily have the <literal>MAINTAIN</literal>
privilege on the table or be the table's owner, a superuser, or a role
with privileges of the
<link linkend="predefined-roles-table"><literal>pg_maintain</literal></link>
role. <literal>LOCK TABLE ... IN ACCESS SHARE MODE</literal> is allowed
with <literal>SELECT</literal> privileges on the target
table. <literal>LOCK TABLE ... IN ROW EXCLUSIVE MODE</literal> is allowed
with <literal>INSERT</literal>, <literal>UPDATE</literal>, <literal>DELETE</literal>,
or <literal>TRUNCATE</literal> privileges on the target table. All other
forms of <command>LOCK</command> are allowed with
table-level <literal>UPDATE</literal>, <literal>DELETE</literal>,
or <literal>TRUNCATE</literal> privileges.
</para>