* multiple acceleration mechanisms to be supported, but no opclass is
* required to provide all of them. The BTSORTSUPPORT function should
* simply not set any function pointers for mechanisms it doesn't support.
- * (However, all opclasses that provide BTSORTSUPPORT are required to provide
- * the comparator function.)
+ * Opclasses that provide BTSORTSUPPORT and don't provide a comparator
+ * function will have a shim set up by sort support automatically.
*
* All sort support functions will be passed the address of the
* SortSupportData struct when called, so they can use it to store