diff --git a/sources/tech/20191007 Understanding Joins in Hadoop.md b/sources/tech/20191007 Understanding Joins in Hadoop.md
index 27ffc58a5a..ea0025a9d2 100644
--- a/sources/tech/20191007 Understanding Joins in Hadoop.md	
+++ b/sources/tech/20191007 Understanding Joins in Hadoop.md	
@@ -1,5 +1,5 @@
 [#]: collector: (lujun9972)
-[#]: translator: ( )
+[#]: translator: (heguangzhi)
 [#]: reviewer: ( )
 [#]: publisher: ( )
 [#]: url: ( )
@@ -55,7 +55,7 @@ via: https://opensourceforu.com/2019/10/understanding-joins-in-hadoop/
 
 作者：[Bhaskar Narayan Das][a]
 选题：[lujun9972][b]
-译者：[译者ID](https://github.com/译者ID)
+译者：[heguangzhi](https://github.com/heguangzhi)
 校对：[校对者ID](https://github.com/校对者ID)
 
 本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出