From 3e166f87473f2d8256eabc3847213af3ff404ea2 Mon Sep 17 00:00:00 2001
From: baxiry <ahmedalbachiry@gmail.com>
Date: Sun, 23 Jun 2024 01:24:58 +0300
Subject: [PATCH] improve matching performence

---
 README.md         |  4 ++--
 engine/filter.go  | 10 +++++-----
 engine/queries.go | 16 ++++++++--------
 3 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/README.md b/README.md
index 568635e..a5b46f2 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,8 @@
 
 
-**ZaraDB:**  A Lightweight and Fast Document Database
+**ZaraDB:**  A Lightweight fast document database
 
-ZaraDB is a lightweight, fast, open-licensed document database with no hidden restrictions.
+ZaraDB is a lightweight fast open-licensed document database with no hidden restrictions.
 Its goal is to be a lightweight alternative to common documentary databases.
 It can also provide superior performance compared to Mongo in many common use cases.
 
diff --git a/engine/filter.go b/engine/filter.go
index 2302c21..c49732b 100644
--- a/engine/filter.go
+++ b/engine/filter.go
@@ -10,12 +10,12 @@ import (
 // json:5, array:5, int:2, string:3
 
 // match verifies that data matches the conditions
-func match(filter, data string) (result bool, err error) {
+func match(filter gjson.Result, data string) (result bool, err error) {
 	// TODO should return syntax error if op unknown
 
 	result = true
 
-	gjson.Parse(filter).ForEach(func(qk, qv gjson.Result) bool {
+	filter.ForEach(func(qk, qv gjson.Result) bool {
 
 		dv := gjson.Get(data, qk.String())
 
@@ -136,7 +136,7 @@ func match(filter, data string) (result bool, err error) {
 					if qk.Str == "$and" {
 
 						for _, v := range qv.Array() {
-							res, _ := match(v.String(), data)
+							res, _ := match(v, data)
 							if !res {
 								result = false
 								return result
@@ -149,7 +149,7 @@ func match(filter, data string) (result bool, err error) {
 
 						for _, v := range qv.Array() {
 
-							res, _ := match(v.String(), data)
+							res, _ := match(v, data)
 							if res {
 								return result
 							}
@@ -164,7 +164,7 @@ func match(filter, data string) (result bool, err error) {
 				}
 			})
 
-			match(qv.String(), dv.String())
+			match(qv, dv.String())
 			return result
 		}
 
diff --git a/engine/queries.go b/engine/queries.go
index fe991c4..d4f4916 100644
--- a/engine/queries.go
+++ b/engine/queries.go
@@ -15,7 +15,7 @@ type matched struct {
 // deletes Many items
 func (db *DB) deleteMany(query string) string {
 
-	mtch := gjson.Get(query, "match").String()
+	mtch := gjson.Get(query, "match")
 
 	coll := gjson.Get(query, "collection").String()
 
@@ -64,7 +64,7 @@ func (db *DB) deleteMany(query string) string {
 // TODO updateMany update document data
 func (db *DB) updateMany(query string) (result string) {
 
-	mtch := gjson.Get(query, "match").String()
+	mtch := gjson.Get(query, "match")
 
 	newObj := gjson.Get(query, "data").String()
 
@@ -121,7 +121,7 @@ func (db *DB) updateMany(query string) (result string) {
 // TODO updateOne one update document data
 func (db *DB) updateOne(query string) (result string) {
 
-	mtch := gjson.Get(query, "match").String()
+	mtch := gjson.Get(query, "match")
 
 	newObj := gjson.Get(query, "data").String()
 
@@ -199,10 +199,10 @@ func (db *DB) findMany(query string) (res string) {
 		return `{"error":"forgot collection name "}`
 	}
 
-	mtch := gjson.Get(query, "match").String()
+	mtch := gjson.Get(query, "match")
+
+	if mtch.String() == "" {
 
-	if mtch == "" {
-		mtch = "{}"
 	}
 
 	skip := gjson.Get(query, "skip").Int()
@@ -271,7 +271,7 @@ func (db *DB) findMany(query string) (res string) {
 func (db *DB) findOne(query string) (res string) {
 	coll := gjson.Get(query, "collection").String()
 
-	mtch := gjson.Get(query, "match").String()
+	mtch := gjson.Get(query, "match")
 	skip := gjson.Get(query, "skip").Int()
 
 	// TODO are skyp useful here ?
@@ -311,7 +311,7 @@ func (db *DB) findOne(query string) (res string) {
 func (db *DB) deleteOne(query string) string {
 
 	coll := gjson.Get(query, "collection").String()
-	mtch := gjson.Get(query, "match").String()
+	mtch := gjson.Get(query, "match")
 
 	stmt := `select rowid, record from ` + coll