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In pg_dump, include pg_catalog and extension ACLs, if changed

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Now that all of the infrastructure exists, add in the ability to
dump out the ACLs of the objects inside of pg_catalog or the ACLs
for objects which are members of extensions, but only if they have
been changed from their original values.

The original values are tracked in pg_init_privs.  When pg_dump'ing
9.6-and-above databases, we will dump out the ACLs for all objects
in pg_catalog and the ACLs for all extension members, where the ACL
has been changed from the original value which was set during either
initdb or CREATE EXTENSION.

This should not change dumps against pre-9.6 databases.

Reviews by Alexander Korotkov, Jose Luis Tallon
This commit is contained in:
Stephen Frost
2016-04-06 21:45:32 -04:00
parent d217b2c360
commit 23f34fa4ba
15 changed files with 1269 additions and 210 deletions
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21
doc/src/sgml/extend.sgml
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@ -338,6 +338,27 @@
data; see below.)
</para>
<para>
The extension script may set privileges on objects which are part of the
extension via <command>GRANT</command> and <command>REVOKE</command>
statements. The final set of privileges for each object (if any are set)
will be stored in the
<link linkend="catalog-pg-init-privs"><structname>pg_init_privs</structname></link>
system catalog. When <application>pg_dump</> is used, the
<command>CREATE EXTENSION</> command will be included in the dump, followed
by the set of <command>GRANT</command> and <command>REVOKE</command>
statements necessary to set the privileges on the objects to what they were
at the time the dump was taken.
</para>
<para>
<productname>PostgreSQL</> does not currently support extension scripts
issuing <command>CREATE POLICY</command> or <command>SECURITY LABEL</command>
statements. These are expected to be set after the extension has been
created. All RLS policies and security labels on extension objects will be
included in dumps created by <application>pg_dump</>.
</para>
<para>
The extension mechanism also has provisions for packaging modification
scripts that adjust the definitions of the SQL objects contained in an