Changeset: 43248a76c9b5 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/43248a76c9b5
Modified Files:
sql/server/rel_exp.c
sql/server/rel_unnest.c
Branch: default
Log Message:
correct cardinality for rank functions, solves issue # 7403
diffs (24 lines):
diff --git a/sql/server/rel_exp.c b/sql/server/rel_exp.c
--- a/sql/server/rel_exp.c
+++ b/sql/server/rel_exp.c
@@ -383,7 +383,7 @@ exp_rank_op( sql_allocator *sa, list *l,
sql_exp *e = exp_create(sa, e_func);
if (e == NULL)
return NULL;
- e->card = exps_card(l);
+ e->card = list_empty(l)?CARD_MULTI:exps_card(l);
e->l = l;
e->r = append(append(sa_list(sa), gbe), obe);
e->f = f;
diff --git a/sql/server/rel_unnest.c b/sql/server/rel_unnest.c
--- a/sql/server/rel_unnest.c
+++ b/sql/server/rel_unnest.c
@@ -2236,7 +2236,7 @@ exp_reset_card_and_freevar_set_physical_
switch(e->type) {
case e_aggr:
case e_func: {
- e->card = exps_card(e->l);
+ e->card = list_empty(e->l)?CARD_MULTI:exps_card(e->l);
} break;
case e_column: {
sql_exp *le = NULL, *re = NULL;
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