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@lukasvogel
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Added sync around data loading for ClickHouse and Ursa as their load times are below the theoretical minimum for instances where the whole dataset fits into memory (cf Issue #678) .

I would also have liked to done it for TCHouse-C and Clickhouse Cloud but I have no idea of how to do that there.

I'm also sure there are other systems that don't do syncs but have longer load times anyway - I currently don't have time to test them all, though.

Also measured that locally on CedarDB and DuckDB - didn't have any effect, as expected. If you want to, we can also include it in future commits, though!

@lukasvogel
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@rschu1ze @alexey-milovidov any updates on this?

@george-larionov george-larionov self-assigned this Jan 30, 2026
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LGTM, I'll merge this PR and then re-run the affected benchmarks on our end to double check. Thanks for contributing!

@george-larionov george-larionov merged commit 3544fd5 into ClickHouse:main Jan 30, 2026
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2 participants