When the name of a sequence auto-generated from a SERIAL type would be
longer than 32 chars, it appears that "CREATE TABLE" uses a different
name truncation algorithm than "DROP SEQUENCE". Example below. Note
the difference between the following:
'process_state_subscripti_id_seq'
'process_state_subscription_id_s'
Might be fixed in 7.1, I dunno. Can anyone confirm this is a problem?
Regards,
Ed Loehr
% createdb testdb
CREATE DATABASE
% psql -e -d testdb -f ~ed/pgbug
CREATE TABLE process_state_subscription (
id SERIAL,
process_id INTEGER,
process_state_id INTEGER,
person_id INTEGER NOT NULL
);
psql:/home/ed/pgbug:8: NOTICE: CREATE TABLE will create implicit
sequence 'process_state_subscripti_id_seq' for SERIAL column
'process_state_subscription.id'
psql:/home/ed/pgbug:8: NOTICE: CREATE TABLE/UNIQUE will create implicit
index 'process_state_subscripti_id_key' for table
'process_state_subscription'
CREATE
DROP SEQUENCE process_state_subscription_id_seq;
psql:/home/ed/pgbug:10: NOTICE: identifier
"process_state_subscription_id_seq" will be truncated to
"process_state_subscription_id_s"
psql:/home/ed/pgbug:10: ERROR: Relation
'process_state_subscription_id_s' does not exist
