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ClickHouse/docs/changelogs/v20.6.6.7-stable.md

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ClickHouse release v20.6.6.7-stable FIXME as compared to v20.6.5.8-stable

Improvement

Bug Fix

  • Backported in #14365: Stop query execution if exception happened in PipelineExecutor itself. This could prevent rare possible query hung. #14334 (Nikolai Kochetov).
  • Backported in #14540: Stop query execution if exception happened in PipelineExecutor itself. This could prevent rare possible query hung. Continuation of #14334. #14402 (Nikolai Kochetov).
  • Backported in #14488: Fix bug which leads to wrong merges assignment if table has partitions with a single part. #14444 (alesapin).
  • Backported in #14483: Check for array size overflow in topK aggregate function. Without this check the user may send a query with carefully crafter parameters that will lead to server crash. This closes #14452. #14467 (Alexey Milovidov).
  • Backported in #14598: Fix rare segfaults in functions with combinator -Resample, which could appear in result of overflow with very large parameters. #14562 (Anton Popov).
  • Backported in #14667: Fix wrong Decimal multiplication result caused wrong decimal scale of result column. #14603 (Artem Zuikov).