Changeset: ee0575f3ec9c for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=ee0575f3ec9c
Modified Files:
gdk/gdk_calc.c
Branch: Apr2019
Log Message:
Only copy tkey value from input bat if there aren't too many nils.
The nils can be produced by having a candidate list.
diffs (21 lines):
diff --git a/gdk/gdk_calc.c b/gdk/gdk_calc.c
--- a/gdk/gdk_calc.c
+++ b/gdk/gdk_calc.c
@@ -259,7 +259,7 @@ BATcalcnot(BAT *b, BAT *s)
bn->trevsorted = nils == 0 && b->tsorted;
bn->tnil = nils != 0;
bn->tnonil = nils == 0;
- bn->tkey = b->tkey;
+ bn->tkey = b->tkey && nils <= 1;
if (nils != 0 && !b->tnil) {
b->tnil = true;
@@ -378,7 +378,7 @@ BATcalcnegate(BAT *b, BAT *s)
bn->trevsorted = nils == 0 && b->tsorted;
bn->tnil = nils != 0;
bn->tnonil = nils == 0;
- bn->tkey = b->tkey;
+ bn->tkey = b->tkey && nils <= 1;
if (nils != 0 && !b->tnil) {
b->tnil = true;
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