From d0e886070c6acbb57c35a1d3df287e2a07a9f115 Mon Sep 17 00:00:00 2001
From: xiedeyantu <czjourney@163.com>
Date: Wed, 19 Jul 2023 17:39:00 +0800
Subject: [PATCH] system.events and system.metrics tables add column name as an
 alias to event and metric

---
 src/Storages/System/StorageSystemEvents.cpp  | 7 +++++++
 src/Storages/System/StorageSystemEvents.h    | 1 +
 src/Storages/System/StorageSystemMetrics.cpp | 7 +++++++
 src/Storages/System/StorageSystemMetrics.h   | 1 +
 4 files changed, 16 insertions(+)

diff --git a/src/Storages/System/StorageSystemEvents.cpp b/src/Storages/System/StorageSystemEvents.cpp
index b9b07cfe0ac5..a914c60abf4b 100644
--- a/src/Storages/System/StorageSystemEvents.cpp
+++ b/src/Storages/System/StorageSystemEvents.cpp
@@ -16,6 +16,13 @@ NamesAndTypesList StorageSystemEvents::getNamesAndTypes()
     };
 }
 
+NamesAndAliases StorageSystemEvents::getNamesAndAliases()
+{
+    return {
+        {"name", std::make_shared<DataTypeString>(), "event"}
+    };
+}
+
 void StorageSystemEvents::fillData(MutableColumns & res_columns, ContextPtr context, const SelectQueryInfo &) const
 {
     for (ProfileEvents::Event i = ProfileEvents::Event(0), end = ProfileEvents::end(); i < end; ++i)
diff --git a/src/Storages/System/StorageSystemEvents.h b/src/Storages/System/StorageSystemEvents.h
index ea0322c13b8e..ed80a441529c 100644
--- a/src/Storages/System/StorageSystemEvents.h
+++ b/src/Storages/System/StorageSystemEvents.h
@@ -17,6 +17,7 @@ class StorageSystemEvents final : public IStorageSystemOneBlock<StorageSystemEve
 
     static NamesAndTypesList getNamesAndTypes();
 
+    static NamesAndAliases getNamesAndAliases();
 protected:
     using IStorageSystemOneBlock::IStorageSystemOneBlock;
 
diff --git a/src/Storages/System/StorageSystemMetrics.cpp b/src/Storages/System/StorageSystemMetrics.cpp
index 6007c8a7c71f..ced363fed174 100644
--- a/src/Storages/System/StorageSystemMetrics.cpp
+++ b/src/Storages/System/StorageSystemMetrics.cpp
@@ -17,6 +17,13 @@ NamesAndTypesList StorageSystemMetrics::getNamesAndTypes()
     };
 }
 
+NamesAndAliases StorageSystemMetrics::getNamesAndAliases()
+{
+    return {
+        {"name", std::make_shared<DataTypeString>(), "metric"}
+    };
+}
+
 void StorageSystemMetrics::fillData(MutableColumns & res_columns, ContextPtr, const SelectQueryInfo &) const
 {
     for (size_t i = 0, end = CurrentMetrics::end(); i < end; ++i)
diff --git a/src/Storages/System/StorageSystemMetrics.h b/src/Storages/System/StorageSystemMetrics.h
index def95e0a9340..bffc7e6f1fc8 100644
--- a/src/Storages/System/StorageSystemMetrics.h
+++ b/src/Storages/System/StorageSystemMetrics.h
@@ -18,6 +18,7 @@ class StorageSystemMetrics final : public IStorageSystemOneBlock<StorageSystemMe
 
     static NamesAndTypesList getNamesAndTypes();
 
+    static NamesAndAliases getNamesAndAliases();
 protected:
     using IStorageSystemOneBlock::IStorageSystemOneBlock;