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2.7 KiB
2.7 KiB
ClickHouse release v20.12.5.14-stable FIXME as compared to v20.12.4.5-stable
Bug Fix
- Backported in #18166: Fix error when query
MODIFY COLUMN ... REMOVE TTL
doesn't actually remove column TTL. #18130 (alesapin). - Backported in #18424: Fix possible crashes in aggregate functions with combinator
Distinct
, while using two-level aggregation. Fixes #17682. #18365 (Anton Popov). - Backported in #18428: Fix filling table
system.settings_profile_elements
. This PR fixes #18231. #18379 (Vitaly Baranov). - Backported in #18482: Restrict merges from wide to compact parts. In case of vertical merge it led to broken result part. #18381 (Anton Popov).
- Backported in #18471: Fixed
value is too short
error when executingtoType(...)
functions (toDate
,toUInt32
, etc) with argument of typeNullable(String)
. Now such functions returnNULL
on parsing errors instead of throwing exception. Fixes #7673. #18445 (Alexander Tokmakov). - Backported in #18533: Proper support for 12AM in
parseDateTimeBestEffort
function. This fixes #18402. #18449 (vladimir-golovchenko). - Backported in #18502: Disable write with AIO during merges because it can lead to extremely rare data corruption of primary key columns during merge. #18481 (alesapin).