Changeset: 8edc8c29c063 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/8edc8c29c063
Modified Files:
sql/server/rel_select.c
sql/test/BugTracker-2022/Tests/single_row_in_rel_order_by_column.Bug-7306.test
sql/test/analytics/Tests/analytics00.test
Branch: Sep2022
Log Message:
Window functions cannot be nested
I have the setup done, so I can do more stuff now.
diffs (66 lines):
diff --git a/sql/server/rel_select.c b/sql/server/rel_select.c
--- a/sql/server/rel_select.c
+++ b/sql/server/rel_select.c
@@ -4498,13 +4498,15 @@ rel_order_by_column_exp(sql_query *query
if (needs_distinct)
return sql_error(sql, 02, SQLSTATE(42000)
"SELECT: with DISTINCT ORDER BY expressions must appear in select list");
e = rel_project_add_exp(sql, p, e);
- for (node *n = p->exps->h ; n ; n = n->next) {
- sql_exp *ee = n->data;
-
- if (ee->card > r->card) {
- if (exp_name(ee) && !has_label(ee))
- return sql_error(sql,
ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s' in
query results without an aggregate function", exp_name(ee));
- return sql_error(sql, ERR_GROUPBY,
SQLSTATE(42000) "SELECT: cannot use non GROUP BY column in query results
without an aggregate function");
+ if (r) {
+ for (node *n = p->exps->h ; n ; n = n->next) {
+ sql_exp *ee = n->data;
+
+ if (ee->card > r->card) {
+ if (exp_name(ee) &&
!has_label(ee))
+ return sql_error(sql,
ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s' in
query results without an aggregate function", exp_name(ee));
+ return sql_error(sql,
ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column in query
results without an aggregate function");
+ }
}
}
}
@@ -4613,7 +4615,7 @@ rel_order_by(sql_query *query, sql_rel *
sql->session->status = 0;
sql->errstr[0] = '\0';
- e = rel_order_by_column_exp(query, &rel, col,
needs_distinct, sql_sel | sql_orderby | (f & sql_group_totals));
+ e = rel_order_by_column_exp(query, &rel, col,
needs_distinct, sql_sel | sql_orderby | (f & sql_group_totals) | (f &
sql_window));
}
if (!e)
return NULL;
diff --git
a/sql/test/BugTracker-2022/Tests/single_row_in_rel_order_by_column.Bug-7306.test
b/sql/test/BugTracker-2022/Tests/single_row_in_rel_order_by_column.Bug-7306.test
---
a/sql/test/BugTracker-2022/Tests/single_row_in_rel_order_by_column.Bug-7306.test
+++
b/sql/test/BugTracker-2022/Tests/single_row_in_rel_order_by_column.Bug-7306.test
@@ -18,13 +18,9 @@ SELECT avg(42) over (order by 2);
----
42.000
-query I
+statement error 42000!ROW_NUMBER: window functions cannot be nested
SELECT count(*) over (order by row_number() over ());
-----
-1
-query R
+statement error 42000!ROW_NUMBER: window functions cannot be nested
SELECT avg(42) over (order by row_number() over ());
-----
-42.000
diff --git a/sql/test/analytics/Tests/analytics00.test
b/sql/test/analytics/Tests/analytics00.test
--- a/sql/test/analytics/Tests/analytics00.test
+++ b/sql/test/analytics/Tests/analytics00.test
@@ -1922,3 +1922,8 @@ 2
statement ok
rollback
+statement error 42000!ROW_NUMBER: window functions cannot be nested
+SELECT avg(42) over (order by row_number() over ())
+
+statement error 42000!ROW_NUMBER: window functions cannot be nested
+SELECT avg(42) over (partition by row_number() over ())
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