subtree_docs_cache

subtree_docs_cache

Max common subtree document cache size, per-query. Optional, default is 0 (disabled).

Limits RAM usage of a common subtree optimizer (see the section called “Multi-queries”). At most this much RAM will be spent to cache document entries per each query. Setting the limit to 0 disables the optimizer.

Example:

subtree_docs_cache = 8M
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