Made a start with showing foreignkeys in column list.

Not finished, need to decide what to do with multiple and multi column fkeys.

pglab/ColumnTableModel.h

@@ -17,6 +17,7 @@ public:
 		TypeCol,
 		NullCol,
 		DefaultCol,
+		ForeignKeyCol,
 		CollationCol,
 
 		colCount };
@@ -44,6 +45,8 @@ protected:
 	t_Columns m_columns;
 	std::vector<PgIndex> m_indexes;
 
+	QString getFKey(const PgAttribute &column) const;
+
 };
 
 #endif // COLUMNTABLEMODEL_H