Changeset: 025a1e86d2f2 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=025a1e86d2f2
Modified Files:
sql/server/rel_statistics.c
Branch: properties
Log Message:
Global aggregates may return NULL
diffs (13 lines):
diff --git a/sql/server/rel_statistics.c b/sql/server/rel_statistics.c
--- a/sql/server/rel_statistics.c
+++ b/sql/server/rel_statistics.c
@@ -350,7 +350,8 @@ rel_propagate_statistics(visitor *v, sql
if (look)
look(sql, e);
}
- if (!e->semantics && e->l && !have_nil(e->l))
+ assert(e->type == e_func || is_groupby(rel->op));
+ if (!e->semantics && e->l && !have_nil(e->l) && (e->type !=
e_aggr || list_length(rel->r)))
set_has_no_nil(e);
} break;
case e_atom: {
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