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These settings are available in system.merge_tree_settings and are autogenerated from ClickHouse source.

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columns_and_secondary_indices_sizes_lazy_calculation

Calculate columns and secondary indices sizes lazily on first request instead of on table initialization.

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columns_to_prewarm_mark_cache

List of columns to prewarm mark cache for (if enabled). Empty means all columns
Last modified on July 22, 2026