contrib: Add some SQL statements to remove old subscribers

openbsc/contrib/hlr-remove-old.sql

@@ -0,0 +1,18 @@
+-- Remove old data from the database
+DELETE FROM Subscriber
+	WHERE id != 1 AND datetime('now', '-10 days') > updated AND authorized != 1;
+DELETE FROM Equipment
+	WHERE datetime('now', '-10 days') > updated;
+DELETE FROM EquipmentWatch
+	WHERE datetime('now', '-10 days') > updated;
+DELETE FROM SMS
+	WHERE datetime('now', '-10 days') > created;
+DELETE FROM VLR
+	WHERE datetime('now', '-10 days') > updated;
+DELETE FROM ApduBlobs
+	WHERE datetime('now', '-10 days') > created;
+DELETE FROM Counters
+	WHERE datetime('now', '-10 days') > timestamp;
+DELETE FROM RateCounters
+	WHERE datetime('now', '-10 days') > timestamp;
+VACUUM;