only introspect namespaces and views accessible

lib/Doctrine/DBAL/Platforms/PostgreSqlPlatform.php

@@ -235,7 +235,10 @@ class PostgreSqlPlatform extends AbstractPlatform
      */
     public function getListNamespacesSQL()
     {
-        return "SELECT nspname FROM pg_namespace WHERE nspname NOT LIKE 'pg_%' AND nspname != 'information_schema'";
+        return "SELECT schema_name AS nspname
+                FROM   information_schema.schemata
+                WHERE  schema_name NOT LIKE 'pg_%'
+                AND    schema_name != 'information_schema'";
     }
 
     /**
@@ -243,10 +246,10 @@ class PostgreSqlPlatform extends AbstractPlatform
      */
     public function getListSequencesSQL($database)
     {
-        return "SELECT sequence_name AS relname, 
+        return "SELECT sequence_name AS relname,
                        sequence_schema AS schemaname
                 FROM   information_schema.sequences
-                WHERE  sequence_schema NOT LIKE 'pg_%' 
+                WHERE  sequence_schema NOT LIKE 'pg_%'
                 AND    sequence_schema != 'information_schema'";
     }
 
@@ -255,12 +258,12 @@ class PostgreSqlPlatform extends AbstractPlatform
      */
     public function getListTablesSQL()
     {
-        return "SELECT quote_ident(table_name) AS table_name, 
+        return "SELECT quote_ident(table_name) AS table_name,
                        table_schema AS schema_name
                 FROM   information_schema.tables
-                WHERE  table_schema NOT LIKE 'pg_%' 
-                AND    table_schema != 'information_schema' 
-                AND    table_name != 'geometry_columns' 
+                WHERE  table_schema NOT LIKE 'pg_%'
+                AND    table_schema != 'information_schema'
+                AND    table_name != 'geometry_columns'
                 AND    table_name != 'spatial_ref_sys'";
     }
 
@@ -269,7 +272,11 @@ class PostgreSqlPlatform extends AbstractPlatform
      */
     public function getListViewsSQL($database)
     {
-        return 'SELECT quote_ident(viewname) as viewname, schemaname, definition FROM pg_views';
+        return 'SELECT quote_ident(table_name) AS viewname,
+                       table_schema AS schemaname,
+                       view_definition AS definition
+                FROM   information_schema.views
+                WHERE  view_definition IS NOT NULL';
     }
 
     /**