another fix for #1203: need to reset _rowMap as well. Also, don't hide reset() from base class

Data/include/Poco/Data/RecordSet.h

@@ -315,6 +315,9 @@ public:
 		/// Returns true if there is at least one row in the RecordSet,
 		/// false otherwise.
 
+	using Statement::reset;
+		/// Don't hide base class method.
+
 	void reset(const Statement& stmt);
 		/// Resets the RecordSet and assigns a new statement.
 		/// Should be called after the given statement has been reset,
@@ -471,7 +474,6 @@ private:
 	void filter(RowFilter* pFilter);
 		/// Sets the filter for the RecordSet.
 
-	
 	const RowFilter* getFilter() const;
 		/// Returns the filter associated with the RecordSet.
 
@@ -491,6 +493,7 @@ private:
 /// inlines
 ///
 
+
 inline Data_API std::ostream& operator << (std::ostream &os, const RecordSet& rs)
 {
 	return rs.copy(os);

Data/src/RecordSet.cpp

@@ -102,6 +102,11 @@ void RecordSet::reset(const Statement& stmt)
 	_currentRow = 0;
 	_totalRowCount = UNKNOWN_TOTAL_ROW_COUNT;
 	
+	RowMap::iterator it = _rowMap.begin();
+	RowMap::iterator end = _rowMap.end();
+	for (; it != end; ++it) delete it->second;
+	_rowMap.clear();
+
 	Statement::operator = (stmt);
 
 	_pBegin = new RowIterator(this, 0 == rowsExtracted());