Added clear() method to rdbms::ColumnNameToIdxAndType

rdbms/ColumnNameToIdxAndType.cpp

@@ -50,5 +50,12 @@ bool ColumnNameToIdxAndType::empty() const {
   return m_nameToIdxAndType.empty();
 }
 
+//------------------------------------------------------------------------------
+// clear
+//------------------------------------------------------------------------------
+void ColumnNameToIdxAndType::clear() {
+  m_nameToIdxAndType.clear();
+}
+
 } // namespace rdbms
 } // namespace cta

rdbms/ColumnNameToIdxAndType.hpp

@@ -82,6 +82,11 @@ public:
    */
   bool empty() const;
 
+  /**
+   * Clears the contents of this map.
+   */
+  void clear();
+
 private:
 
   /**