Function analyze_join_sides

nodedb-sql/src/planner/bitmap_emit/hashjoin.rs:38–43

Analyze both join children and return bitmap-pushdown hints. Neither side is penalized for being analyzed — if both qualify, both hints are emitted so the executor can inject prefilters on both probe scans. This is safe: the executor will only use the bitmap that matches the collection it is about to scan.

(left: &SqlPlan, right: &SqlPlan)

/// This is safe: the executor will only use the bitmap that matches the
/// collection it is about to scan.
pub fn analyze_join_sides(left: &SqlPlan, right: &SqlPlan) -> BitmapJoinHints {
    BitmapJoinHints {
        left: predicate::analyze(left),
        right: predicate::analyze(right),
    }
}