[1.0.0] Optimize the SQL in the PDO storage adapter for some searches.#226
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…nstead of a materialized IN list. Fixes directory scaling issues with certain queries. This unfortunately does not help MySQL.
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This fixes directory scaling issues with certain queries (mostly list). This unfortunately does not help MySQL. Unsure how much effort to put into optimizing the MySQL side of this. But this basically flattens certain list queries at 20ms past a 25k directory size in SQLite.