优化定时任务

internal/db/migrator/goose/postgres/202606110002_alter_schedules_id_auto_increment.sql

@@ -0,0 +1,9 @@
+-- +goose Up
+-- +goose StatementBegin
+ALTER TABLE schedules ALTER COLUMN id ADD GENERATED BY DEFAULT AS IDENTITY (START WITH 100);
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+ALTER TABLE schedules ALTER COLUMN id DROP IDENTITY IF EXISTS;
+-- +goose StatementEnd

internal/db/migrator/goose/sqlite/202606110002_alter_schedules_id_auto_increment.sql

@@ -0,0 +1,32 @@
+-- +goose Up
+-- +goose StatementBegin
+-- 1. Rename existing schedules table
+ALTER TABLE schedules RENAME TO schedules_old;
+
+-- 2. Create new schedules table with AUTOINCREMENT
+CREATE TABLE schedules (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    name VARCHAR(128) NOT NULL,
+    task_type VARCHAR(64) NOT NULL,
+    cron VARCHAR(64) NOT NULL,
+    payload TEXT,
+    is_active BOOLEAN NOT NULL DEFAULT TRUE,
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
+);
+
+-- 3. Copy existing data
+INSERT INTO schedules (id, name, task_type, cron, payload, is_active, created_at, updated_at)
+SELECT id, name, task_type, cron, payload, is_active, created_at, updated_at FROM schedules_old;
+
+-- 4. Drop the old table
+DROP TABLE schedules_old;
+
+-- 5. Recreate index
+CREATE INDEX IF NOT EXISTS idx_schedules_is_active ON schedules (is_active);
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+-- Re-creating table with AUTOINCREMENT cannot be undone simply without recreating table again.
+-- +goose StatementEnd