pub trait ExprRewritable {
// Provided methods
fn has_rewritable_expr(&self) -> bool { ... }
fn rewrite_exprs(&self, _r: &mut dyn ExprRewriter) -> PlanRef { ... }
}Expand description
Rewrites expressions in a PlanRef. Due to Share operator,
the ExprRewriter needs to be idempotent i.e., applying it more than once
to the same ExprImpl will be a noop on subsequent applications.
rewrite_exprs should only return a plan with the given node modified.
To rewrite recursively, call rewrite_exprs_recursive on RewriteExprsRecursive.