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…more than index_granularity rows
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Backport #21976 to 21.3: CollapsingSortedAlgorithm should not return more than index_granularity rows
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Backport #21976 to 21.2: CollapsingSortedAlgorithm should not return more than index_granularity rows
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Backport #21976 to 21.1: CollapsingSortedAlgorithm should not return more than index_granularity rows
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Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):
In rare case, merge for
CollapsingMergeTreemay create granule withindex_granularity + 1rows. Because of this, internal check, added in #18928 (affects 21.2 and 21.3), may fail with errorIncomplete granules are not allowed while blocks are granules size. This error did not allow parts to merge.