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These settings configure the ClickHouse server and are autogenerated from ClickHouse source.

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index_uncompressed_cache_policy

Secondary index uncompressed cache policy name.

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index_uncompressed_cache_size

Maximum size of cache for uncompressed blocks of MergeTree indices.
A value of 0 means disabled.This setting can be modified at runtime and will take effect immediately.

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index_uncompressed_cache_size_ratio

The size of the protected queue (in case of SLRU policy) in the secondary index uncompressed cache relative to the cache’s total size.
Last modified on July 23, 2026