Preloading is done by logtape.c now.
* beginmerge - initialize for a merge pass
*
* We decrease the counts of real and dummy runs for each tape, and mark
- * which tapes contain active input runs in mergeactive[]. Then, load
- * as many tuples as we can from each active input tape, and finally
- * fill the merge heap with the first tuple from each active tape.
+ * which tapes contain active input runs in mergeactive[]. Then, fill the
+ * merge heap with the first tuple from each active tape.
*/
static void
beginmerge(Tuplesortstate *state)