TT#57959 Fix NULL field in the unique index

Change-Id: I00f8f5604b99c831ff737156a24aecf39c6d88c5
(cherry picked from commit dbf2accf23)
(cherry picked from commit cb9d4282aa)

db_scripts/diff/15548.down

@@ -0,0 +1,9 @@
+SET autocommit=0;
+
+USE billing;
+
+alter table billing.billing_profiles change terminate_timestamp terminate_timestamp timestamp null default null;
+
+update billing.billing_profiles set terminate_timestamp = null where terminate_timestamp = '0000-00-00 00:00:00';
+
+commit;

db_scripts/diff/15548.up

@@ -0,0 +1,9 @@
+set autocommit=0;
+
+use billing;
+
+update billing.billing_profiles set terminate_timestamp = '0000-00-00 00:00:00' where terminate_timestamp is null;
+
+alter table billing.billing_profiles change terminate_timestamp terminate_timestamp timestamp not null default '0000-00-00 00:00:00';
+
+commit;