Changeset: 34e4b974ad06 for MonetDB URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=34e4b974ad06 Modified Files: gdk/gdk_join.c Branch: Oct2014 Log Message:
small optimizations (reduce amount of nil/sort checks for once we know it has nils or isn't sorted) diffs (28 lines): diff --git a/gdk/gdk_join.c b/gdk/gdk_join.c --- a/gdk/gdk_join.c +++ b/gdk/gdk_join.c @@ -2770,17 +2770,22 @@ project_##TYPE(BAT *bn, BAT *l, BAT *r, if (nilcheck && v == TYPE##_nil && bn->T->nonil) { \ bn->T->nonil = 0; \ bn->T->nil = 1; \ + nilcheck = 0; \ } \ if (sortcheck && lo && \ (bn->trevsorted | bn->tsorted | bn->tkey)) { \ if (v > prev) { \ bn->trevsorted = 0; \ - if (!bn->tsorted) \ + if (!bn->tsorted) { \ bn->tkey = 0; /* can't be sure */ \ + sortcheck = 0; \ + } \ } else if (v < prev) { \ bn->tsorted = 0; \ - if (!bn->trevsorted) \ + if (!bn->trevsorted) { \ bn->tkey = 0; /* can't be sure */ \ + sortcheck = 0; \ + } \ } else { \ bn->tkey = 0; /* definitely */ \ } \ _______________________________________________ checkin-list mailing list checkin-list@monetdb.org https://www.monetdb.org/mailman/listinfo/checkin-list