more index cleanups to optimise space

db/db.go

@@ -5,7 +5,6 @@ import (
 	"embed"
 	"fmt"
 	"log/slog"
-	"os"
 	"reflect"
 	"strings"
 
@@ -24,8 +23,9 @@ type Database interface {
 }
 
 type Config struct {
-	Driver string
-	DSN    string
+	Driver                     string
+	DSN                        string
+	EnableExperimentalPostgres bool
 }
 
 func New(logger *slog.Logger, cfg Config) (Database, error) {
@@ -42,8 +42,8 @@ func New(logger *slog.Logger, cfg Config) (Database, error) {
 		return db, nil
 	case "postgres":
 		// The sqlc query set is SQLite-first. Keep Postgres opt-in until full parity is validated.
-		if strings.TrimSpace(os.Getenv("VCTP_ENABLE_EXPERIMENTAL_POSTGRES")) != "1" {
-			return nil, fmt.Errorf("postgres driver is disabled by default; set VCTP_ENABLE_EXPERIMENTAL_POSTGRES=1 to enable experimental mode")
+		if !cfg.EnableExperimentalPostgres {
+			return nil, fmt.Errorf("postgres driver is disabled by default; set settings.enable_experimental_postgres=true to enable experimental mode")
 		}
 		db, err := newPostgresDB(logger, cfg.DSN)
 		if err != nil {