From 26b23e2586a690afb369cc08db464a50da879d04 Mon Sep 17 00:00:00 2001
From: lhui1991 <llhui1991@163.com>
Date: Thu, 5 Aug 2021 00:57:24 +0800
Subject: [PATCH] fix panic in func RowMap (#157)

Co-authored-by: lihui7968 <lihui7968@ipalfish.com>
---
 hive.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hive.go b/hive.go
index c73e0cf..4ee7705 100644
--- a/hive.go
+++ b/hive.go
@@ -630,6 +630,9 @@ func (c *Cursor) RowMap(ctx context.Context) map[string]interface{} {
 	}
 
 	d := c.Description()
+	if c.Err != nil || len(d) != len(c.queue) {
+		return nil
+	}
 	m := make(map[string]interface{}, len(c.queue))
 	for i := 0; i < len(c.queue); i++ {
 		columnName := d[i][0]