I am getting an exception in my code which I did not anticipate and could not find sufficient documentation to clear this issue. I have a rather simple table (Table_A) with two columns (Text id, Integer number). If I do the following set of commands on two separate psql consoles, I get a read/write exception.
T1: begin transaction isolation level serializable;
T2: begin transaction isolation level serializable;
T1: update Table_A set number = 1 where id = 'ID1';
T2: update Table_A set number = 1 where id = 'ID2';
T1: commit;
T2: commit;
T2 throws a 40001 exception. Note that both transactions operate on distinct rows in my table. Then why am I getting an exception? I would greatly appreciate any pointers.
