Re: BUG #17909: CREATE SCHEMA AUTHORIZATION sch CREATE TABLE foo ( id INT ) will coredump - Mailing list pgsql-bugs

From Richard Guo
Subject Re: BUG #17909: CREATE SCHEMA AUTHORIZATION sch CREATE TABLE foo ( id INT ) will coredump
Date
Msg-id CAMbWs49CfOfrMp_AGPiBo7g7BusGf2gy1kGSatm-BYO5aeojvQ@mail.gmail.com
Whole thread Raw
In response to Re: BUG #17909: CREATE SCHEMA AUTHORIZATION sch CREATE TABLE foo ( id INT ) will coredump  (Michael Paquier <michael@paquier.xyz>)
Responses Re: BUG #17909: CREATE SCHEMA AUTHORIZATION sch CREATE TABLE foo ( id INT ) will coredump
List pgsql-bugs

On Thu, Apr 27, 2023 at 5:31 PM Michael Paquier <michael@paquier.xyz> wrote:
On Thu, Apr 27, 2023 at 04:59:13PM +0800, Richard Guo wrote:
> In this case the CreateSchemaStmtContext.schemaname is NULL since it is
> not explicitly specified, while the schemaname in the schema element is
> not NULL as it is specified, and setSchemaName cannot copy with such
> situation.  Maybe we should check against RoleSpec.rolename in this case
> since that is also the schema's name?

In this case, it is cleaner to just set the schema name in
CreateSchemaStmtContext.schemaname to the role in the RoleSpec if there
is no schema set in the query, because the schema name will have the
same name as the role.  That also makes the handling of each element
in schemaElts simpler.

I noticed that in CreateSchemaCommand there is logic that fills schema
name with the role name if it is not specified.  Do you think we can
save the new-filled schema name into CreateSchemaStmt.schemaname there?
 
The regression tests cruelly lacks of checks here.  This is not a
pattern of CREATE SCHEMA known a lot, but we should do better.

Agreed.  It's better to have a case covering this pattern of CREATE
SCHEMA.

Thanks
Richard

pgsql-bugs by date:

Previous
From: Alexander Lakhin
Date:
Subject: Re: BUG #17804: Assertion failed in pg_stat after fetching from pg_stat_database and switching cache->snapshot
Next
From: Daniel Gustafsson
Date:
Subject: Re: pg_basebackup: errors on macOS on directories with ".DS_Store" files