databend lack some clickhouse functions

[lddlww]

databend version：

 8.0.26-v0.9.16-nightly-3fcebe7(rust-1.68.0-nightly-2023-01-27T16:29:17.399818523Z)

lack function:

windowfunnel
toUnixTimestamp

[BohuTANG]

Databend function name style is not the same as ClickHouse:
windowfunnel : https://databend.rs/doc/sql-functions/aggregate-functions/aggregate-windowfunnel

toUnixTimestamp I would cc @sundy-li for help :)

[lddlww]

thank you，windowfunnel in databend is window_funnel

[sundy-li]

we can cast timestamp to int64 (microseconds), if you want to have seconds you can use

MySQL [(none)]> select now()::Int64/1e6;
+--------------------------+
| (now()::int64 / 1000000) |
+--------------------------+
|               1678091806 |
+--------------------------+
1 row in set (0.006 sec)