pgsql: Remove any-user DML capability from allow_system_table_mods

Remove any-user DML capability from allow_system_table_mods

Previously, allow_system_table_mods allowed a non-superuser to do DML
on a system table without further permission checks. This has been
removed, as it was quite inconsistent with the rest of the meaning of
this setting. (Since allow_system_table_mods was previously only
accessible with a server restart, it is unlikely that anyone was using
this possibility.)

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: /messages/by-id/8b00ea5e-28a7-88ba-e848-21528b632354@2ndquadrant.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/508bf95b767140ec1a339bcb53538d21deb9d995

Modified Files
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src/backend/catalog/aclchk.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)