Minor changes

pg/pg.go

@@ -25,14 +25,13 @@ type PgxQuerier interface {
 // Usage:
 //
 //	type User struct {
-//	  id   int
-//	  name string
+//	  Id   int    `db:"id"`
+//	  Name string `db:"name"`
 //	}
 //
 //	db := pgx.Connect(context.Background(), "<url>")
-//	users, err := pgUtils.Select[User](context.Background(), db, "SELECT * FROM users")
+//	users, err := pgUtils.Select[User](context.Background(), db, "SELECT id, name FROM users")
 func Select[T any](ctx context.Context, db PgxQuerier, query string, args ...any) (out []*T, err error) {
-	out = []*T{}
 	rows, err := db.Query(ctx, query, args)
 	if err != nil {
 		switch {
@@ -47,7 +46,8 @@ func Select[T any](ctx context.Context, db PgxQuerier, query string, args ...any
 	for i, fd := range rows.FieldDescriptions() {
 		columns[i] = fd.Name
 	}
-	itemFieldPtrs := make([]interface{}, len(columns))
+	itemFieldPtrs := make([]any, len(columns))
+	out = []*T{}
 
 	defer rows.Close()
 	for rows.Next() {