I don`t know, if there is a special feature in postgresql for this. The standard SQL-way is to create a lookup-table and define a foreign-key to it.
create table states( state_id int primary key not null
, state_text varchar(30) not null
, constraint uk_states_state_text unique( state_text ) );
create table states( state_id int primary key not null , state_text varchar(30) not null ); alter table states add constraint uk_states_state_text unique( state_text );
create table your_table ( ... state_id int not null , constraint fk_yt_state_id foreign key (state_id) references states );
[EMAIL PROTECTED] schrieb:
hi,
Is it possible in Postgre to have enum type, so that later table fileld get values from 1-6 (saving space)
1 - statex 2 - stateY 3 - stateZ
something like that and then constrain on this enum type..
tia
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