Trouble with ClickHouse silently
2 posts from 2 people2d activeFading, +0 this weekunverified
Posts per day
The posts behind it
Lightweight `UPDATE`s made on 26.8+ silently disappear after a rollback to 26.6: v2 patch parts are detached as `broken-on-start` (`Invalid version of SourcePartsSetForPatch: 1`)
...newer) to 26.6, every patch part written by a lightweight `UPDATE` on the new version fails to load, is moved to `detached/` as `broken-on-start`, and all queries return the pre-update values without any error. The only trace is in the server log: `Part...
Multi-shard DISTINCT with LIMIT silently drops rows on type collapse
### Describe what's wrong - On a multi-shard Distributed table, `SELECT DISTINCT ts ... LIMIT 5` can return fewer distinct values than exist. - Trigger: shard column is `DateTime64(3)`, declared type on the Distributed table is `DateTime`, 10 distinct seconds underneath. -...
Companies and products named
About this problem
Evidence
2 posts from 2 people in 1 place, about 1 a week over 29 days. Mostly on ClickHouse/ClickHouse. Tools named alongside: GitHub.
Frustration Frustration 0 of 3· Seen on GitHub issues
How it was grouped
Posts about ClickHouse with no known issue, sharing the word "silently". First post Oct 5, 2026, latest Nov 2, 2026. Unverified: fewer than 3 posts, or one person or place only. Method
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History