diff --git a/internal/model/post.go b/internal/model/post.go
index 0acf130..307accf 100644
--- a/internal/model/post.go
+++ b/internal/model/post.go
@@ -12,8 +12,8 @@ type Post struct {
 	Title        string         `gorm:"type:varchar(200);not null" json:"title"`
 	Body         string         `gorm:"type:text" json:"body"`            // Markdown content
 	Excerpt      string         `gorm:"type:varchar(500)" json:"excerpt"` // plain text summary for list
-	UserID       uint           `gorm:"index;not null" json:"user_id"`
-	Status       string         `gorm:"type:varchar(20);index;default:draft;not null" json:"status"`
+	UserID       uint           `gorm:"index;index:idx_posts_user_status,priority:1;not null" json:"user_id"`
+	Status       string         `gorm:"type:varchar(20);index;index:idx_posts_user_status,priority:2;default:draft;not null" json:"status"`
 	IsLocked     bool           `gorm:"default:false" json:"is_locked"`
 	LockReason   string         `gorm:"type:varchar(500);default:''" json:"lock_reason,omitempty"`
 	PendingTitle string         `gorm:"type:varchar(200);default:''" json:"pending_title,omitempty"`