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 */ \
} \
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