Slightly optimize squashing of JSON columns for some cases#94247
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Avogar merged 2 commits intoClickHouse:masterfrom Jan 19, 2026
Merged
Slightly optimize squashing of JSON columns for some cases#94247Avogar merged 2 commits intoClickHouse:masterfrom
Avogar merged 2 commits intoClickHouse:masterfrom
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Algunenano
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Jan 15, 2026
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Pull request overview
This PR optimizes the insertion operations for JSON columns by adding fast-path optimizations when the limit on dynamic paths has been reached and the set of dynamic paths matches between source and destination columns.
Changes:
- Added optimization in
doInsertFromto directly insert from source shared data when dynamic path sets match - Added optimization in
doInsertRangeFromto directly insert range from source shared data when dynamic path sets match
Algunenano
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Jan 15, 2026
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Changelog entry (a user-readable short description of the changes that goes into CHANGELOG.md):
Slightly optimize squashing of JSON columns for some cases
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