feat: complete IM P0 and P1 reliability work

scripts/apply_group_business_tables.go

@@ -24,6 +24,13 @@ func main() {
 	if err = db.Ping(); err != nil {
 		fatal(err)
 	}
+	var schema string
+	if err = db.QueryRow("SELECT DATABASE()").Scan(&schema); err != nil {
+		fatal(err)
+	}
+	if strings.TrimSpace(schema) == "" {
+		fatal("IM_MYSQL_DSN must select a tenant database")
+	}
 
 	raw, err := os.ReadFile("docs/IM-群聊业务表设计.sql")
 	if err != nil {
@@ -39,7 +46,7 @@ func main() {
 			fatal(fmt.Errorf("exec failed: %s: %w", stmt, err))
 		}
 	}
-	fmt.Println("group business tables applied")
+	fmt.Printf("group business tables applied to %s\n", schema)
 }
 
 func stripSQLLineComments(text string) string {

scripts/check_group_business_tables.go

@@ -24,6 +24,13 @@ func main() {
 	if err = db.Ping(); err != nil {
 		fatal(err)
 	}
+	var schema string
+	if err = db.QueryRow("SELECT DATABASE()").Scan(&schema); err != nil {
+		fatal(err)
+	}
+	if strings.TrimSpace(schema) == "" {
+		fatal("IM_MYSQL_DSN must select a tenant database")
+	}
 
 	tables := []string{
 		"im_group_settings",
@@ -41,7 +48,7 @@ func main() {
 	}
 	for _, table := range tables {
 		var count int
-		err = db.QueryRow(`SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA='tinode' AND TABLE_NAME=?`, table).Scan(&count)
+		err = db.QueryRow(`SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA=? AND TABLE_NAME=?`, schema, table).Scan(&count)
 		if err != nil {
 			fatal(err)
 		}