Changeset: b83cbf0bb7f8 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=b83cbf0bb7f8
Modified Files:
gdk/gdk_join.c
Branch: Aug2018
Log Message:
Always use mergejoin if both sides are sorted.
diffs (14 lines):
diff --git a/gdk/gdk_join.c b/gdk/gdk_join.c
--- a/gdk/gdk_join.c
+++ b/gdk/gdk_join.c
@@ -3697,7 +3697,9 @@ leftjoin(BAT **r1p, BAT **r2p, BAT *l, B
return mergejoin_void(r1, r2, l, r, sl, sr,
nil_on_miss, only_misses, t0, false);
} else if ((BATordered(r) || BATordered_rev(r)) &&
- (BATtdense(r) ||
+ (BATordered(l) ||
+ BATordered_rev(l) ||
+ BATtdense(r) ||
lcount < 1024 ||
BATcount(r) * (Tsize(r) + (r->tvheap ? r->tvheap->size : 0)
+ 2 * sizeof(BUN)) > GDK_mem_maxsize / (GDKnr_threads ? GDKnr_threads : 1)))
return mergejoin(r1, r2, l, r, sl, sr, nil_matches,
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