Update ddl-command-handling.mdx

Update allowed DDL commands and overrides

product_docs/docs/pgd/5.6/ddl/ddl-command-handling.mdx

@@ -118,7 +118,7 @@ under the following table.
 | CREATE STATISTICS                | Y                                             | Y                                          | DDL                                              |
 | CREATE SUBSCRIPTION              | Y                                             | Y                                          | DDL                                              |
 | CREATE SYNONYM                   | Y                                             | Y                                          | DDL                                              |
-| CREATE TABLE                     | [Details](#bdr_ddl_allowed_CreateStmt)        | Y                                          | DDL                                              |
+| CREATE TABLE                     | Y                                             | Y                                          | DDL                                              |
 | CREATE TABLE AS                  | [Details](#bdr_ddl_allowed_CreateTableAsStmt) | Y                                          | DDL                                              |
 | CREATE TABLESPACE                | Y                                             | N                                          | N                                                |
 | CREATE TEXT SEARCH CONFIGURATION | Y                                             | Y                                          | DDL                                              |
@@ -253,10 +253,12 @@ Some variants of `ALTER TABLE` currently aren't allowed on a PGD node:
 -   `ADD COLUMN ... DEFAULT (non-immutable expression)` — This is not allowed because
     it currently results in different data on different nodes. See
     [Adding a column](ddl-workarounds/#adding-a-column) for a suggested workaround.
--   `ALTER TABLE ... SET WITH[OUT] OIDS` — Isn't supported for the same reasons
-    as in `CREATE TABLE`.
+    This can be overriden using `bdr.permit_unsafe_commands` if user is sure the command is
+    safe.
 -   `ALTER COLUMN ... SET STORAGE external` — Is rejected if the column is
     one of the columns of the replica identity for the table.
+    This can be overriden using `bdr.permit_unsafe_commands` if user is sure the command is
+    safe.
 -   `RENAME` — Can't rename an Autopartitioned table.
 -   `SET SCHEMA` — Can't set the schema of an Autopartitioned table.
 -   `ALTER COLUMN ... TYPE` — Changing a column's type isn't supported if the
@@ -272,6 +274,8 @@ Some variants of `ALTER TABLE` currently aren't allowed on a PGD node:
     AccessExclusiveLock for extended periods on larger tables, so such commands
     are likely to be infeasible on highly available databases in any case.
     See [Changing a column's type](ddl-workarounds/#changing-a-columns-type) for a suggested workaround.
+    This can be overriden using `bdr.permit_unsafe_commands` if user is sure the command is
+    safe.
 -   `ALTER TABLE ... ADD FOREIGN KEY` — Isn't supported if current user doesn't have
     permission to read the referenced table or if the referenced table
     has RLS restrictions enabled that the current user can't bypass.
@@ -500,13 +504,6 @@ break the replication due to the `writer` worker throwing the error: `cannot cha
 Generally `CREATE SEQUENCE` is supported, but when using global
 sequences, some options have no effect.
 
-<div id='bdr_ddl_allowed_CreateStmt'></div>
-
-### CREATE TABLE
-
-Generally `CREATE TABLE` is supported, but `CREATE TABLE WITH OIDS` isn't
-allowed on a PGD node.
-
 <div id='bdr_ddl_allowed_CreateTableAsStmt'></div>
 
 ### CREATE TABLE AS and SELECT INTO