TODO
====

 * specific orasnap
  * Tablespace : list default tablespace for each user
  * Disabled constraints : owner, table, constraint, type, status
  * FK without indexes : owner, constraint name, column name
  * cached tables (pg_buffercache)
  * Buffer Hit Ratio (Consistent Gets  DB Blk Gets  Physical Reads  Hit Ratio)

 * HTML interface
  * jQuery support : sort in tables, filtering
  * graph on database size and usage
  * graph on tablespace size
  * graph on table and index size and usage

 * pollux asks for
  * limiting the schemas used with a command line option (to get pg_catalog out)
  * being able to get a report from a standard user (not a superuser)
    see TODO in tablespaces.php