May I ask the question here or I must go to the pgsql-hackers? Why does ENUM type have 4 byte size? In any use cases, that I know, ENUM 255 values (1 byte) more then enough. And it's only reason for ENUM, if you need more values then 255 you can create a foreign table with smallint (or bigger) primary key. And, obviously that table will be filled by operators or routines, not by a programmer. The only reason for ENUM is to use for fields with very small set of values, for instance: sex, day of week, month, etc. And 1 byte size is 4 times shorter then 4 bytes, especially for big tables. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
