Merge branch 'rightlib' into mergelibs-241120-1113

1 files changed, 29 insertions, 0 deletions

diff --git a/yql/essentials/tests/sql/suites/window/current/session_extended.sql b/yql/essentials/tests/sql/suites/window/current/session_extended.sql
new file mode 100644
index 0000000000..5990b4ec12
--- /dev/null
+++ b/yql/essentials/tests/sql/suites/window/current/session_extended.sql
@@ -0,0 +1,29 @@
+/* syntax version 1 */
+/* postgres can not */
+
+$init = ($row) -> (AsStruct($row.ts ?? 0 as value, 1 as count));
+
+$calculate = ($_row, $state) -> ($state.value);
+-- split partition into two-element grooups, make session key to be cumulative sum of ts from partition start
+$update = ($row, $state) -> {
+  $state = AsStruct($state.count + 1 as count, $state.value as value);
+  $state = AsStruct($state.count as count, $state.value + ($row.ts ?? 0) as value);
+  return  AsTuple(Unwrap($state.count % 2) == 1, $state);
+};
+
+
+SELECT
+    user,
+    ts,
+    payload,
+    AGGREGATE_LIST(cast(ts as string) ?? "null") over w as ts_session,
+    COUNT(1) over w as session_len,
+    SessionStart() over w as session_start,
+    SessionState() over w as session_state,
+FROM plato.Input
+WINDOW w AS (
+    PARTITION BY user, SessionWindow(ts + 1, $init, $update, $calculate)
+    ORDER BY ts
+)
+ORDER BY user, payload;
+