Changeset: 9049cd976d8a for MonetDB
URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=9049cd976d8a
Modified Files:
gdk/gdk_select.c
Branch: leftmart
Log Message:
Do not use order idx if there is a non dense cand list
diffs (23 lines):
diff --git a/gdk/gdk_select.c b/gdk/gdk_select.c
--- a/gdk/gdk_select.c
+++ b/gdk/gdk_select.c
@@ -1455,9 +1455,11 @@ BATselect(BAT *b, BAT *s, const void *tl
/* If there is an order index or it is a view and the parent has an
ordered
* index, and the bat is not tsorted or trevstorted then use the order
* index.
+ * And there is no cand list or if there is one, it is dense.
* TODO: we do not support anti-select with order index */
if (!anti &&
!(b->tsorted || b->trevsorted) &&
+ (!s || (s && BATtdense(s))) &&
(BATcheckorderidx(b) ||
(VIEWtparent(b) &&
BATcheckorderidx(BBPquickdesc(abs(VIEWtparent(b)), 0)))))
{
@@ -1675,6 +1677,7 @@ BATselect(BAT *b, BAT *s, const void *tl
if (s && !BATtdense(s)) {
const oid *rcand = (const oid *)
Tloc((s), 0);
+ assert("should not use orderidx with
non dense cand list, too expensive");
for (i = low; i < high; i++) {
if (vwl <= *rs && *rs < vwh) {
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