Merge pull request #1519 from amosbird/patch-3

Fixes StorageJoin's sample block order.

dbms/src/Storages/StorageJoin.cpp

@@ -43,7 +43,7 @@ StorageJoin::StorageJoin(
     /// NOTE StorageJoin doesn't use join_use_nulls setting.
 
     join = std::make_shared<Join>(key_names, key_names, false /* use_nulls */, Limits(), kind, strictness);
-    join->setSampleBlock(getSampleBlock());
+    join->setSampleBlock(getSampleBlock().sortColumns());
     restore();
 }