QUERY: VACUUM;
QUERY: SELECT relname, relhasindex
   FROM pg_class
   WHERE relhasindex
   ORDER BY relname;
relname      |relhasindex
-------------+-----------
bt_c16_heap  |t          
bt_f8_heap   |t          
bt_i4_heap   |t          
bt_txt_heap  |t          
fast_emp4000 |t          
hash_c16_heap|t          
hash_f8_heap |t          
hash_i4_heap |t          
hash_txt_heap|t          
ihighway     |t          
onek         |t          
pg_attrdef   |t          
pg_attribute |t          
pg_class     |t          
pg_proc      |t          
pg_relcheck  |t          
pg_trigger   |t          
pg_type      |t          
road         |t          
shighway     |t          
tenk1        |t          
tenk2        |t          
(22 rows)