Hello, I have a problem about dropping and recovering foreign key constraint. Since we are using table partitioning for table A, records are always directed to one partition by triggers, leaving the parent table A empty. However, for table B where A's id serves as a foreign key, the foreign key constraint tells the database to look into the parent table (A), which is empty. This will cause the violation of FK-constraint when inserting into table B. The previous way to solve this problem is by issuing commands like: ALTER table exon_exon_junc_obs disable trigger all ; It doesn't work in another server where I am not the superuser. I have tried to use ""ALTER table table_B_name DROP CONSTRAINT constraint_name;""" It worked but I can not recover the foreign key constraint after inserting rows. The command """ALTER table table table_B_name ADD CONSTRAINT constraint_name FOREIGN KEY (A_id) REFERENCES A(A_id)""" returns ERROR: insert or update on table "B" violates foreign key constraint "constraint_name" DETAIL: Key (A_id)=(1) is not present in table "A". Have you ever encountered a similar problem? Any possible solutions to it? Thank you in advance! Xiaoning -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general