MonetDB: Jan2022 - I did another replacement wrong

[Pedro Ferreira]

Changeset: 348309e62616 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/348309e62616
Modified Files:
        sql/server/rel_unnest.c
Branch: Jan2022
Log Message:

I did another replacement wrong


diffs (21 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
@@ -2115,8 +2115,15 @@ aggrs_split_funcs(mvc *sql, sql_rel *rel
                }
                if (!list_empty(projs)) {
                        /* the grouping relation may have more than 1 
reference, a replacement is needed */
-                       list *nexps = list_merge(rel_projections(sql, rel, 
NULL, 1, 1), projs, NULL);
-                       rel = rel_inplace_project(sql->sa, rel, 
rel_dup(rel->l), nexps);
+                       sql_rel *l = rel_create(sql->sa);
+                       if (!l)
+                               return NULL;
+                       *l = *rel;
+                       /* increment the refcount of the left relation */
+                       rel_dup(rel->l);
+                       l->ref.refcnt = 1;
+                       list *nexps = list_merge(rel_projections(sql, l, NULL, 
1, 1), projs, NULL);
+                       rel = rel_inplace_project(sql->sa, rel, l, nexps);
                        rel->card = exps_card(nexps);
                }
        }
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