vector_similarity_* server settings

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

vector_similarity_index_cache_max_entries

Size of cache for vector similarity index in entries. Zero means disabled.

Vector similarity index cache policy name.

Size of cache for vector similarity indexes. Zero means disabled.

This setting can be modified at runtime and will take effect immediately.

The size of the protected queue (in case of SLRU policy) in the vector similarity index cache relative to the cache’s total size.

Last modified on July 23, 2026