Better migration handling

scnserver/db/schema/primary_migration_6_7.sql

@@ -0,0 +1,52 @@
+
+
+
+DROP INDEX "idx_clients_userid";
+DROP INDEX "idx_clients_fcmtoken";
+
+
+CREATE TABLE clients_new
+(
+    client_id          TEXT                                                                    NOT NULL,
+
+    user_id            TEXT                                                                    NOT NULL,
+    type               TEXT       CHECK(type IN ('ANDROID','IOS','LINUX','MACOS','WINDOWS'))   NOT NULL,
+    fcm_token          TEXT                                                                    NOT NULL,
+    name               TEXT                                                                        NULL,
+
+    timestamp_created  INTEGER                                                                 NOT NULL,
+
+    agent_model        TEXT                                                                    NOT NULL,
+    agent_version      TEXT                                                                    NOT NULL,
+
+
+    deleted               INTEGER  CHECK(deleted IN (0, 1))        NOT NULL    DEFAULT '0',
+
+    PRIMARY KEY (client_id)
+) STRICT;
+
+
+INSERT INTO clients_new
+SELECT
+    client_id,
+    user_id,
+    type,
+    fcm_token,
+    name,
+    timestamp_created,
+    agent_model,
+    agent_version,
+    0 AS deleted
+FROM clients;
+
+
+DROP TABLE clients;
+ALTER TABLE clients_new RENAME TO clients;
+
+
+CREATE        INDEX "idx_clients_userid"   ON clients (user_id);
+CREATE        INDEX "idx_clients_deleted"  ON clients (deleted);
+CREATE UNIQUE INDEX "idx_clients_fcmtoken" ON clients (fcm_token);
+
+
+