mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-06 15:42:39 +00:00
28 lines
931 B
Markdown
28 lines
931 B
Markdown
---
|
|
name: Performance issue
|
|
about: Report something working slower than expected
|
|
title: ''
|
|
labels: performance
|
|
assignees: ''
|
|
|
|
---
|
|
|
|
(you don't have to strictly follow this form)
|
|
|
|
**Describe the situation**
|
|
What exactly works slower than expected?
|
|
|
|
**How to reproduce**
|
|
* Which ClickHouse server version to use
|
|
* Which interface to use, if matters
|
|
* Non-default settings, if any
|
|
* `CREATE TABLE` statements for all tables involved
|
|
* Sample data for all these tables, use [clickhouse-obfuscator](https://github.com/ClickHouse/ClickHouse/blob/master/programs/obfuscator/Obfuscator.cpp#L42-L80) if necessary
|
|
* Queries to run that lead to slow performance
|
|
|
|
**Expected performance**
|
|
What are your performance expectation, why do you think they are realistic? Has it been working faster in older ClickHouse releases? Is it working faster in some specific other system?
|
|
|
|
**Additional context**
|
|
Add any other context about the problem here.
|