This will cause the tableView:objectValueForTableColumn:row: method from Listing 6 to be called again for each cell in the table, resulting in the re-sorted data being displayed.
这将导致清单6中的 tableView:objectValueForTableColumn:row:方法针对数据表中的每个单元再次调用，从而显示经过重新排序的数据。
If the sorted data cannot fit entirely into the sort heap, which is a block of memory that is allocated each time a sort is performed, it overflows into a temporary table owned by the database.
如果无法将排序的数据整个放入排序堆中(排序堆是每次执行排序时分配的一块内存)，它就会溢出到该数据库所有的临时表中。
To display sorted data, use a data source that supports sorting and then have the data source sort it.
若要显示已排序数据，请使用支持排序的数据源，然后使数据源对数据进行排序。
To display sorted data, use a data source that supports sorting and then have the data source sort it.
若要显示已排序数据，请使用支持排序的数据源，然后使数据源对数据进行排序。
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