dow_6_open TIME NOT NULL DEFAULT '09:00',
dow_6_close TIME NOT NULL DEFAULT '17:00'
);
+COMMENT ON TABLE actor.hours_of_operation IS $$
+When does this org_unit usually open and close? (Variations
+are expressed in the actor.org_unit_closed table.)
+$$
+COMMENT ON COLUMN actor.hours_of_operation.dow_0_open IS $$
+When does this org_unit open on Monday?
+$$
+COMMENT ON COLUMN actor.hours_of_operation.dow_0_close IS $$
+When does this org_unit close on Monday?
+$$
+COMMENT ON COLUMN actor.hours_of_operation.dow_1_open IS $$
+When does this org_unit open on Tuesday?
+$$
+COMMENT ON COLUMN actor.hours_of_operation.dow_1_close IS $$
+When does this org_unit close on Tuesday?
+$$
+COMMENT ON COLUMN actor.hours_of_operation.dow_2_open IS $$
+When does this org_unit open on Wednesday?
+$$
+COMMENT ON COLUMN actor.hours_of_operation.dow_2_close IS $$
+When does this org_unit close on Wednesday?
+$$
+COMMENT ON COLUMN actor.hours_of_operation.dow_3_open IS $$
+When does this org_unit open on Thursday?
+$$
+COMMENT ON COLUMN actor.hours_of_operation.dow_3_close IS $$
+When does this org_unit close on Thursday?
+$$
+COMMENT ON COLUMN actor.hours_of_operation.dow_4_open IS $$
+When does this org_unit open on Friday?
+$$
+COMMENT ON COLUMN actor.hours_of_operation.dow_4_close IS $$
+When does this org_unit close on Friday?
+$$
+COMMENT ON COLUMN actor.hours_of_operation.dow_5_open IS $$
+When does this org_unit open on Saturday?
+$$
+COMMENT ON COLUMN actor.hours_of_operation.dow_5_close IS $$
+When does this org_unit close on Saturday?
+$$
+COMMENT ON COLUMN actor.hours_of_operation.dow_6_open IS $$
+When does this org_unit open on Sunday?
+$$
+COMMENT ON COLUMN actor.hours_of_operation.dow_6_close IS $$
+When does this org_unit close on Sunday?
+$$
CREATE TABLE actor.org_unit_closed (
id SERIAL PRIMARY KEY,