pg_intmap

Compressed integer containers.

intmap

Integer to integer map. Example:

postgres=# select '10=>125, 20=>250, 30=>0'::intmap->20;
 ?column? 
----------
      250
(1 row)

intarr

Integer array. Example:

postgres=# select '{100,225,-70}'::intarr->2;
 ?column? 
----------
      225
(1 row)