Fix posgres tests

sys/db/db_sql.php

@@ -72,5 +72,61 @@ abstract class DB_SQL {
 	 * @return string
 	 */
 	abstract public function backup_data();
+	
+	/**
+	 * Returns sql to list other databases
+	 *
+	 * @return string
+	 */
+	abstract public function db_list();
+
+	/**
+	 * Returns sql to list tables
+	 *
+	 * @return string
+	 */
+	abstract public function table_list();
+
+	/**
+	 * Returns sql to list system tables
+	 *
+	 * @return string
+	 */
+	abstract public function system_table_list();
+
+	/**
+	 * Returns sql to list views
+	 *
+	 * @return string
+	 */
+	abstract public function view_list();
+
+	/**
+	 * Returns sql to list triggers
+	 *
+	 * @return string
+	 */
+	abstract public function trigger_list();
+
+	/**
+	 * Return sql to list functions
+	 *
+	 * @return FALSE
+	 */
+	abstract public function function_list();
+
+	/**
+	 * Return sql to list stored procedures
+	 *
+	 * @return string
+	 */
+	abstract public function procedure_list();
+
+	/**
+	 * Return sql to list sequences
+	 *
+	 * @return string
+	 */
+	abstract public function sequence_list();
 }
 // End of db_sql.php

sys/db/drivers/pgsql/pgsql_driver.php

@@ -73,5 +73,23 @@ class pgSQL extends DB_PDO {
 	{
 		return (isset($this->statement)) ? $this->statement->rowCount : FALSE;
 	}
+	
+	// --------------------------------------------------------------------------
+	
+	/**
+	 * Get a list of schemas for the current connection
+	 *
+	 * @return array
+	 */
+	public function get_schemas()
+	{
+		$sql = <<<SQL
+			SELECT DISTINCT "schemaname" FROM "pg_tables"
+			WHERE "schemaname" NOT LIKE 'pg\_%'
+			AND "schemaname" != 'information_schema'
+SQL;
+
+		return $this->driver_query($sql);
+	}
 }
 //End of pgsql_driver.php

sys/db/drivers/pgsql/pgsql_sql.php

@@ -17,6 +17,15 @@
  */
 class pgSQL_SQL extends DB_SQL {
 
+	/**
+	 * Database-specific method to create a new table
+	 *
+	 * @param string $name
+	 * @param array $columns
+	 * @param array $constraints
+	 * @param array $indexes
+	 * @return string
+	 */
 	public function create_table($name, $columns, array $constraints=array(), array $indexes=array())
 	{
 		$column_array = array();
@@ -67,6 +76,12 @@ class pgSQL_SQL extends DB_SQL {
 
 	// --------------------------------------------------------------------------
 
+	/**
+	 * Database-specific SQL for dropping a table
+	 *
+	 * @param string $name
+	 * @return string
+	 */
 	public function delete_table($name)
 	{
 		return 'DROP TABLE "'.$name.'"';