Changeset: 43bd659c5f45 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/43bd659c5f45
Modified Files:
sql/server/rel_rel.c
Branch: default
Log Message:
correct cardinality of projection over a grouped result, ie is again card multi.
diffs (14 lines):
diff --git a/sql/server/rel_rel.c b/sql/server/rel_rel.c
--- a/sql/server/rel_rel.c
+++ b/sql/server/rel_rel.c
@@ -838,8 +838,9 @@ rel_project(sql_allocator *sa, sql_rel *
else
rel->nrcols = l->nrcols;
rel->single = is_single(l);
- rel->grouped = l->grouped;
}
+ if (rel->card == CARD_AGGR)
+ rel->card = CARD_MULTI;
if (e && !list_empty(e)) {
set_processed(rel);
rel->nrcols = list_length(e);
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