Fixed error with Sets, part 2 ClickHouse#2246

jtroy · Apr 19, 2018 · 207a8cc · 207a8cc
1 parent ce0ac3f
commit 207a8cc
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/dbms/src/DataStreams/CreatingSetsBlockInputStream.cpp b/dbms/src/DataStreams/CreatingSetsBlockInputStream.cpp
@@ -28,7 +28,9 @@ CreatingSetsBlockInputStream::CreatingSetsBlockInputStream(
         if (elem.second.source)
         {
             children.push_back(elem.second.source);
-            elem.second.set->setHeader(elem.second.source->getHeader());
+
+            if (elem.second.set)
+                elem.second.set->setHeader(elem.second.source->getHeader());
         }
     }