MonetDB: default - make sure we flatten complex value sets

[Niels Nes]

Changeset: 8231e03eba14 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/8231e03eba14
Modified Files:
        sql/server/rel_unnest.c
Branch: default
Log Message:

make sure we flatten complex value sets


diffs (16 lines):

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
@@ -4040,10 +4040,10 @@ rewrite_values(visitor *v, sql_rel *rel)
        if (!is_values(e) || list_length(exp_get_values(e))<=1)
                return rel;
 
-       if (is_values(e) && list_length(rel->exps) > 1 && 
exps_have_rel_exp(rel->exps))
+       if (is_values(e) && exps_have_rel_exp(rel->exps))
                return flatten_values(v, rel);
 
-       if (!exp_has_freevar(v->sql, e) && !exp_has_rel(e))
+       if (!exps_have_freevar(v->sql, rel->exps))
                return rel;
 
        list *exps = sa_list(v->sql->sa);
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