From 5d9a6ffe347a738275bb71e4dfa8ea41531fbf9a Mon Sep 17 00:00:00 2001
From: HarrisChu <1726587+HarrisChu@users.noreply.github.com>
Date: Thu, 24 Feb 2022 16:31:21 +0800
Subject: [PATCH] fix nil point

---
 pkg/common/types.go       | 2 +-
 pkg/nebulagraph/client.go | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/pkg/common/types.go b/pkg/common/types.go
index 25d7c47..5c52088 100644
--- a/pkg/common/types.go
+++ b/pkg/common/types.go
@@ -19,7 +19,7 @@ type (
 	IGraphClient interface {
 		IClient
 		GetData() (Data, error)
-		Execute(stat string) (IGraphResponse, error)
+		Execute(stmt string) (IGraphResponse, error)
 	}
 
 	// IGraphResponse graph response, just support 3 functions to user.
diff --git a/pkg/nebulagraph/client.go b/pkg/nebulagraph/client.go
index bfa73b3..02ac582 100644
--- a/pkg/nebulagraph/client.go
+++ b/pkg/nebulagraph/client.go
@@ -192,6 +192,7 @@ func (gp *GraphPool) GetSession(username, password string) (common.IGraphClient,
 	// balancer, ccore just use the first endpoint
 	index := len(gp.clients) % len(gp.hosts)
 	client, err := gp.clientGetter(gp.hosts[index], username, password)
+
 	if gp.Version == "" {
 		gp.Version = string(client.Version())
 	}
@@ -267,6 +268,8 @@ func (gc *GraphClient) Execute(stmt string) (common.IGraphResponse, error) {
 		rows = 0
 		latency = 0
 	} else {
+		// no err, so the error code is ErrorCode_SUCCEEDED
+		codeErr, _ = nerrors.AsCodeError(nerrors.NewCodeError(nerrors.ErrorCode_SUCCEEDED, ""))
 		rs, _ = wrapper.GenResultSet(resp, gc.Client.Factory(), types.TimezoneInfo{})
 		rows = int32(rs.GetRowSize())
 		latency = resp.GetLatencyInUs()