Changeset: c4e0e31888f9 for MonetDB
URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=c4e0e31888f9
Modified Files:
gdk/gdk_firstn.c
Branch: Oct2014
Log Message:
Fix for bug 3560: last value in grouped first-N isn't necessarily highest.
diffs (16 lines):
diff --git a/gdk/gdk_firstn.c b/gdk/gdk_firstn.c
--- a/gdk/gdk_firstn.c
+++ b/gdk/gdk_firstn.c
@@ -677,12 +677,9 @@ BATfirstn_grouped(BAT **topn, BAT **gids
#define shuffle_grouped_with_groups2(TYPE) \
do { \
const TYPE *v = (const TYPE *) Tloc(b, BUNfirst(b)); \
- TYPE lastval = v[groups[top - 1].bun]; \
for (ci = 0, i = cand ? *cand++ - b->hseqbase : start; \
i < end; \
ci++, cand < candend ? (i = *cand++ - b->hseqbase) : i++)
{ \
- if (asc ? v[i] > lastval : v[i] < lastval) \
- continue; \
for (j = 0; j < top; j++) { \
if (gv[ci] == groups[j].grp && \
v[i] == v[groups[j].bun]) { \
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