remove the created_at column from hdb_cron_triggers table

server/src-rsr/initialise.sql

@@ -747,8 +747,7 @@ CREATE TABLE hdb_catalog.hdb_cron_triggers
   retry_conf JSON,
   header_conf JSON,
   include_in_metadata BOOLEAN NOT NULL DEFAULT FALSE,
-  comment TEXT,
-  created_at TIMESTAMPTZ DEFAULT NOW()
+  comment TEXT
 );
 
 CREATE TABLE hdb_catalog.hdb_cron_events

server/src-rsr/migrations/37_to_38.sql

@@ -1,6 +1,3 @@
-ALTER TABLE hdb_catalog.hdb_cron_triggers
-ADD COLUMN created_at TIMESTAMPTZ default now();
-
 ALTER TABLE hdb_catalog.hdb_cron_events
 ALTER COLUMN created_at TYPE TIMESTAMPTZ;
 

server/src-rsr/migrations/38_to_37.sql

@@ -1,6 +1,3 @@
-ALTER TABLE hdb_catalog.hdb_cron_triggers
-DROP COLUMN created_at;
-
 ALTER TABLE hdb_catalog.hdb_cron_events
 ALTER COLUMN created_at TYPE TIMESTAMP;