Changeset: 86f4e47581c0 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=86f4e47581c0
Modified Files:
sql/server/rel_optimizer.c
Branch: Jul2017
Log Message:
fixed crash in distinct rewrite
diffs (20 lines):
diff --git a/sql/server/rel_optimizer.c b/sql/server/rel_optimizer.c
--- a/sql/server/rel_optimizer.c
+++ b/sql/server/rel_optimizer.c
@@ -5177,14 +5177,14 @@ rel_groupby_distinct2(int *changes, mvc
exp_setname(sql->sa, v, exp_find_rel_name(e),
exp_name(e));
append(naggrs, v);
} else { /* group by col */
- if (list_find_exp(gbes, e)) { /* group by exp are
needed in the aggr list, simple (alias or project) expressions are just needed
in the result */
+ if (list_find_exp(gbes, e) || !list_find_exp(naggrs,
e)) {
append(aggrs, e);
e = exp_column(sql->sa, exp_find_rel_name(e),
exp_name(e), exp_subtype(e), e->card, has_nil(e), is_intern(e));
}
append(naggrs, e);
}
- }
+ }
l = rel->l = rel_groupby(sql, rel->l, gbes);
l->exps = aggrs;
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