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eval_comparison_truth

uqa_sql::expr

Function eval_comparison_truth 

Source 
pub fn eval_comparison_truth(
    op: BinaryOp,
    l: &Value,
    r: &Value,
) -> Result<Option<bool>>
Expand description

Compare two values without allocating an intermediate Value::Bool.

None is SQL UNKNOWN (normally caused by NULL). Predicate executors use this form so comparisons and boolean composition stay in a compact tri-state representation throughout the row-filtering hot path.