ClickHouse / ClickHouse/ClickHouse
Disallow CTAS on cluster by default
Open
comp-ddl
external
usability
- Dominant language
- C++
- Stars
- 49.9k
- Forks
- 9k
- Avg merge
- 21h 32m
- Merged PRs (30d)
- 515
Description
**Describe the issue**
When people run CREATE TABLE AS SELECT ... with ON CLUSTER keyword they usually unaware, that SELECT ... part will be run on all servers, ie duplication of data.
**Expected behavior**
Exception with warning about this behavior.
Or if possible, fix for that problem :)
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Assessment
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