Do not list tables required by extensions

src/Schema/PostgreSQLSchemaManager.php

@@ -632,15 +632,22 @@ protected function selectTableColumns(string $databaseName, ?string $tableName =
             (SELECT pg_description.description
                 FROM pg_description WHERE pg_description.objoid = c.oid AND a.attnum = pg_description.objsubid
             ) AS comment
-            FROM pg_attribute a, pg_class c, pg_type t, pg_namespace n
+            FROM pg_attribute a
+                INNER JOIN pg_class c
+                    ON c.oid = a.attrelid
+                INNER JOIN pg_type t
+                    ON t.oid = a.atttypid
+                INNER JOIN pg_namespace n
+                    ON n.oid = c.relnamespace
+                LEFT JOIN pg_depend d
+                    ON d.objid = c.oid
+                        AND d.deptype = 'e'
 SQL;
 
         $conditions = array_merge([
             'a.attnum > 0',
-            'a.attrelid = c.oid',
-            'a.atttypid = t.oid',
-            'n.oid = c.relnamespace',
             "c.relkind = 'r'",
+            'd.refobjid IS NULL',
         ], $this->buildQueryConditions($tableName));
 
         $sql .= ' WHERE ' . implode(' AND ', $conditions) . ' ORDER BY a.attnum';