datafusion

Reduce number of traversals per node in `PhysicalExprSimplifier` (#20082)

Minor: update tests in limit_pushdown.rs to insta (#20066)

chore: Add microbenchmark (compared to ExprOrExpr) (#20076)

fix: The limit_pushdown physical optimization rule removes limits in some cases leading to incorrect results (#20048)

fix: correct weight handling in approx_percentile_cont_with_weight (#19941)