--- a/src/StreamRelationalReader.h	Sun Sep 16 12:01:46 2018 +0200
+++ b/src/StreamRelationalReader.h	Sun Sep 16 18:00:34 2018 +0200
@@ -145,6 +145,9 @@
 				// Read column count
 				columnCount = integerReader.readValue(input);
 
+				columnTypes.clear();
+				columnNames.clear();
+				columns.clear();
 				columnTypes.reserve(columnCount);
 				columnNames.reserve(columnCount);
 				columns.reserve(columnCount);