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From: PG Bug reporting form <[email protected]>
To: [email protected]
Cc: [email protected]
Subject: BUG #19475: VACUUM on a partition still warns after MAINTAIN is granted on the partitioned parent
Date: Mon, 11 May 2026 07:41:42 +0000
Message-ID: <[email protected]> (raw)

The following bug has been logged on the website:

Bug reference:      19475
Logged by:          Chi Zhang
Email address:      [email protected]
PostgreSQL version: 18.3
Operating system:   Ubuntu 24.04
Description:        

Hi,

I tested the current PostgreSQL master at commit 901ed9b352b (postgres
--version reports PostgreSQL 19devel). The current branch already contains
commit ff9618e82a466fc9c635f9f087776e57b21e4f14, whose commit message says:

“For partitions, allow the maintenance command if the user has the MAINTAIN
privilege on the partition or any parent.”

However, the following test case still produces a permission warning when
VACUUM is run directly on a partition after granting MAINTAIN only on its
partitioned parent.

Reproduction:

```
CREATE TABLE parent (a int) PARTITION BY RANGE (a);
CREATE TABLE child PARTITION OF parent
  FOR VALUES FROM (0) TO (100);
INSERT INTO parent VALUES (1), (2), (3);

GRANT MAINTAIN ON parent TO main_role;

SET client_min_messages = warning;
SET ROLE main_role;

VACUUM child;  -- WARNING:  permission denied to vacuum "child", skipping it

```

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