From 0392aa904c305f366a39d853d550d8adea3b3684 Mon Sep 17 00:00:00 2001
From: Tobie Morgan Hitchcock <tobie@abcum.com>
Date: Fri, 14 Jun 2019 23:03:06 +0100
Subject: [PATCH] Use reflect to check for document changes

---
 db/document.go | 7 ++-----
 db/yield.go    | 1 +
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/db/document.go b/db/document.go
index 656c915f..04756be1 100644
--- a/db/document.go
+++ b/db/document.go
@@ -18,11 +18,11 @@ import (
 	"fmt"
 
 	"context"
+	"reflect"
 
 	"github.com/abcum/surreal/kvs"
 	"github.com/abcum/surreal/sql"
 	"github.com/abcum/surreal/util/data"
-	"github.com/abcum/surreal/util/diff"
 	"github.com/abcum/surreal/util/indx"
 	"github.com/abcum/surreal/util/keys"
 )
@@ -207,10 +207,7 @@ func (d *document) forced(ctx context.Context) bool {
 }
 
 func (d *document) hasChanged(ctx context.Context) bool {
-	a, _ := d.initial.Data().(map[string]interface{})
-	b, _ := d.current.Data().(map[string]interface{})
-	c := diff.Diff(a, b)
-	return len(c) > 0
+	return reflect.DeepEqual(d.initial, d.current) == false
 }
 
 func (d *document) shouldDrop(ctx context.Context) (bool, error) {
diff --git a/db/yield.go b/db/yield.go
index 716e7502..1bc3151a 100644
--- a/db/yield.go
+++ b/db/yield.go
@@ -106,6 +106,7 @@ func (d *document) yield(ctx context.Context, stm sql.Statement, output sql.Toke
 		switch output {
 		default:
 			return nil, nil
+
 		case sql.DIFF:
 
 			old, err := d.cold(ctx)