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QueryOptimizer

kore_fileformat::query_cache

Struct QueryOptimizer 

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pub struct QueryOptimizer;
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Query optimizer strategies

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impl QueryOptimizer

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pub fn push_down_filters(query_text: &str) -> String

Optimize query by pushing down filters

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pub fn estimate_cost( table_rows: u64, filter_selectivity: f64, join_count: usize, ) -> QueryCost

Estimate query cost (rows processed)

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pub fn choose_strategy(cost: &QueryCost) -> ExecutionStrategy

Choose best execution strategy

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