From 605c904fc64a6d1b8c98c62d1d5f5e518906f9f3 Mon Sep 17 00:00:00 2001
From: alesapin <alesapin@gmail.com>
Date: Tue, 16 Jun 2020 11:39:12 +0300
Subject: [PATCH] Add method for compatibility

---
 src/Storages/MergeTree/MergeTreeData.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/Storages/MergeTree/MergeTreeData.h b/src/Storages/MergeTree/MergeTreeData.h
index 007c6898e60..3fe222ba0b2 100644
--- a/src/Storages/MergeTree/MergeTreeData.h
+++ b/src/Storages/MergeTree/MergeTreeData.h
@@ -21,6 +21,7 @@
 #include <Interpreters/PartLog.h>
 #include <Disks/StoragePolicy.h>
 #include <Interpreters/Aggregator.h>
+#include <Storages/extractKeyExpressionList.h>
 
 #include <boost/multi_index_container.hpp>
 #include <boost/multi_index/ordered_index.hpp>
@@ -511,6 +512,13 @@ public:
         broken_part_callback(name);
     }
 
+    /// TODO (alesap) Duplicate method required for compatibility.
+    /// Must be removed.
+    static ASTPtr extractKeyExpressionList(const ASTPtr & node)
+    {
+        return DB::extractKeyExpressionList(node);
+    }
+
     /// Check that the part is not broken and calculate the checksums for it if they are not present.
     MutableDataPartPtr loadPartAndFixMetadata(const VolumePtr & volume, const String & relative_path) const;