diff --git a/models.go b/models.go
index 092424a..36f13c3 100644
--- a/models.go
+++ b/models.go
@@ -10,15 +10,15 @@ import (
 
 type Watch struct {
 	ID        uint        `form:"watch_id" yaml:"watch_id"`
-	Name      string      `form:"watch_name" yaml:"watch_name" binding:"required" validate:"min=1"`
+	Name      string      `form:"watch_name" gorm:"index" yaml:"watch_name" binding:"required" validate:"min=1"`
 	CronEntry *cron.Entry `gorm:"-:all"`
 	LastValue string      `gorm:"-:all"`
 }
 
 type Filter struct {
 	ID       uint      `form:"filter_id" yaml:"filter_id" json:"filter_id"`
-	WatchID  uint      `form:"filter_watch_id" yaml:"filter_watch_id" json:"filter_watch_id" binding:"required"`
-	Name     string    `form:"filter_name" yaml:"filter_name" json:"filter_name" binding:"required" validate:"min=1"`
+	WatchID  uint      `form:"filter_watch_id" gorm:"index" yaml:"filter_watch_id" json:"filter_watch_id" binding:"required"`
+	Name     string    `form:"filter_name" gorm:"index" yaml:"filter_name" json:"filter_name" binding:"required" validate:"min=1"`
 	X        int       `form:"x" yaml:"x" json:"x" validate:"default=0"`
 	Y        int       `form:"y" yaml:"y" json:"y" validate:"default=0"`
 	Type     string    `form:"filter_type" yaml:"filter_type" json:"filter_type" binding:"required" validate:"oneof=url xpath json css replace match substring math store condition cron"`
@@ -37,14 +37,14 @@ func (filter *Filter) log(v ...any) {
 
 type FilterConnection struct {
 	ID       uint `form:"filter_connection_id" yaml:"filter_connection_id" json:"filter_connection_id"`
-	WatchID  uint `form:"connection_watch_id" yaml:"connection_watch_id" json:"connection_watch_id" binding:"required"`
-	OutputID uint `form:"filter_output_id" yaml:"filter_output_id" json:"filter_output_id" binding:"required"`
-	InputID  uint `form:"filter_input_id" yaml:"filter_input_id" json:"filter_input_id" binding:"required"`
+	WatchID  uint `form:"connection_watch_id" gorm:"index" yaml:"connection_watch_id" json:"connection_watch_id" binding:"required"`
+	OutputID uint `form:"filter_output_id" gorm:"index" yaml:"filter_output_id" json:"filter_output_id" binding:"required"`
+	InputID  uint `form:"filter_input_id" gorm:"index" yaml:"filter_input_id" json:"filter_input_id" binding:"required"`
 }
 
 type FilterOutput struct {
 	ID      uint      `yaml:"filter_output_id" json:"filter_output_id"`
-	WatchID uint      `yaml:"filter_output_watch_id" json:"filter_output_watch_id"`
+	WatchID uint      `yaml:"filter_output_watch_id" gorm:"index" json:"filter_output_watch_id"`
 	Name    string    `yaml:"filter_output_name" json:"filter_output_name"`
 	Value   string    `yaml:"filter_output_value" json:"filter_output_value"`
 	Time    time.Time `yaml:"filter_output_time" json:"filter_output_time"`