Changeset: 62a126d1c03b for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/62a126d1c03b
Modified Files:
monetdb5/modules/mal/pp_sort.c
Branch: default
Log Message:
add comments
diffs (13 lines):
diff --git a/monetdb5/modules/mal/pp_sort.c b/monetdb5/modules/mal/pp_sort.c
--- a/monetdb5/modules/mal/pp_sort.c
+++ b/monetdb5/modules/mal/pp_sort.c
@@ -331,6 +331,9 @@ PPmerge_any( bat *Rzzl, bat *Rzzb, bat *
}
}
int v1 = (int)l, v2 = (int)-b, v3 = (int)-a;
+ /* zzl stores len of run from one of the sides, side
flips starting at left */
+ /* b store number of equal values at end of run */
+ /* a store number of equal values at start of next run
*/
if (BUNappend(rzzl, &v1, TRUE) != GDK_SUCCEED ||
BUNappend(rzzb, &v2, TRUE) != GDK_SUCCEED ||
BUNappend(rzza, &v3, TRUE) != GDK_SUCCEED) {
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