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ClickHouse® is a real-time analytics DBMS
308e094d04
Fixes the following LOGICAL_ERROR:
$ clickhouse-client -q 'select arrayFilter((a) -> ((a, arrayJoin([[]])) IN (Null, [Null])), [])'
2020.08.16 00:32:01.967102 [ 1744189 ] {b40a5ebd-d710-4f03-bb18-57db67de1181} <Error> : Logical error: 'Lambda captured argument arrayJoin(array(array())) not found in required columns.'.
clickhouse-server: ../src/Common/Exception.cpp:45: DB::Exception::Exception(const string&, int): Assertion `false' failed.
Since there are multiple input columns for arrayJoin():
(gdb) p captured_names_
$6 = std::vector of length 3, capacity 4 = {"arrayJoin(array(array()))", "arrayJoin(array(array()))", "__set"}
While FunctionCaptureOverloadResolver cannot handle non-unique columns.
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ClickHouse is an open-source column-oriented database management system that allows generating analytical data reports in real time.
Useful Links
- Official website has quick high-level overview of ClickHouse on main page.
- Tutorial shows how to set up and query small ClickHouse cluster.
- Documentation provides more in-depth information.
- YouTube channel has a lot of content about ClickHouse in video format.
- Slack and Telegram allow to chat with ClickHouse users in real-time.
- Blog contains various ClickHouse-related articles, as well as announcements and reports about events.
- Code Browser with syntax highlight and navigation.
- Yandex.Messenger channel shares announcements and useful links in Russian.
- Contacts can help to get your questions answered if there are any.
- You can also fill this form to meet Yandex ClickHouse team in person.
Upcoming Events
- ClickHouse at ByteDance (in Chinese) on August 28, 2020.