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Revert MAINTAIN privilege and pg_maintain predefined role.

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This reverts the following commits: 4dbdb82513, c2122aae63,
5b1a879943, 9e1e9d6560, ff9618e82a, 60684dd834, 4441fc704d,
and b5d6382496.  A role with the MAINTAIN privilege may be able to
use search_path tricks to escalate privileges to the table owner.
Unfortunately, it is too late in the v16 development cycle to apply
the proposed fix, i.e., restricting search_path when running
maintenance commands.

Bumps catversion.

Reviewed-by: Jeff Davis
Discussion: https://postgr.es/m/E1q7j7Y-000z1H-Hr%40gemulon.postgresql.org
Backpatch-through: 16
This commit is contained in:
Nathan Bossart
2023-07-07 11:25:13 -07:00
parent ec99d6e9c8
commit 151c22deee
41 changed files with 179 additions and 445 deletions
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6
doc/src/sgml/ref/analyze.sgml
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@@ -182,9 +182,11 @@ ANALYZE [ VERBOSE ] [ <replaceable class="parameter">table_and_columns</replacea
<title>Notes</title>
<para>
To analyze a table, one must ordinarily have the <literal>MAINTAIN</literal>
privilege on the table. However, database owners are allowed to
To analyze a table, one must ordinarily be the table's owner or a
superuser. However, database owners are allowed to
analyze all tables in their databases, except shared catalogs.
(The restriction for shared catalogs means that a true database-wide
<command>ANALYZE</command> can only be performed by a superuser.)
<command>ANALYZE</command> will skip over any tables that the calling user
does not have permission to analyze.
</para>