VictoriaLogs LogQL "stats by" is not working

[gmlexx]

Looks this function LogQL is not supported in the current version 0.40 deployed by VM operator

{"ts":"2024-12-12T13:58:47.711Z","level":"warn","caller":"VictoriaMetrics/app/vlselect/logsql/logsql.go:32","msg":"remoteAddr: \"10.244.118.9:49796\"; requestURI: /select/logsql/hits?end=1734011927&field=_str │
│ eam&query=_time%3A5m+%7C+stats+by+%28kubernetes_pod_name%29&start=1734008327&step=36s; cannot parse query [_time:5m | stats by (kubernetes_pod_name)]: cannot parse 'stats' pipe: unknown stats func \"\"; conte │
│ xt: [_time:5m | stats by (kubernetes_pod_name)]"}