postgresql - How to turn a column of ints into one array in postgres -

i have table 1 column , 400 rows; each row has integer. how can create int array of these integers preserves order?

i using postgresql-9.2.

select array_agg(int_column order some_column) int_array_column the_table; 

where some_column column defines "order" of integer values. rows in relational database not have "an order", request "that preserves order" makes sense if have column defines sort order try preserve.