diff --git a/src/gausskernel/optimizer/geqo/geqo_random.cpp b/src/gausskernel/optimizer/geqo/geqo_random.cpp
index 8b9891f46..d391d22f0 100644
--- a/src/gausskernel/optimizer/geqo/geqo_random.cpp
+++ b/src/gausskernel/optimizer/geqo/geqo_random.cpp
@@ -17,7 +17,7 @@
 
 #include "optimizer/geqo_random.h"
 
-void geqo_set_seed(PlannerInfo* root, double seed)
+void geqo_set_seed(PlannerInfo* root, double seed)// 设置遗传查询优化的随机种子
 {
     GeqoPrivateData* priv = (GeqoPrivateData*)root->join_search_private;
 
@@ -26,15 +26,19 @@ void geqo_set_seed(PlannerInfo* root, double seed)
      * critical to do so.
      */
     errno_t rc = EOK;
-    rc = memset_s(priv->random_state, sizeof(priv->random_state), 0, sizeof(priv->random_state));
+    rc = memset_s(priv->random_state, sizeof(priv->random_state), 0, sizeof(priv->random_state));// 使用memset_s将随机状态数组初始化为0
     securec_check(rc, "\0", "\0");
+    // 使用memcpy_s将给定的种子复制到随机状态数组中
     rc = memcpy_s(priv->random_state, sizeof(priv->random_state), &seed, Min(sizeof(priv->random_state), sizeof(seed)));
     securec_check(rc, "\0", "\0");
 }
-
+// 生成随机数（0到1之间）用于遗传查询优化
 double geqo_rand(PlannerInfo* root)
 {
     GeqoPrivateData* priv = (GeqoPrivateData*)root->join_search_private;
-
+// 使用erand48函数生成随机数，基于随机状态数组
     return erand48(priv->random_state);
 }
+/*
+第一个函数用于设置随机种子，第二个函数用于生成遗传查询优化中的随机数。
+*/
\ No newline at end of file