proper input schema for stats evaluator

kernel/src/engine/arrow_expression.rs

@@ -145,8 +145,7 @@ fn extract_column<'array, 'path>(
     let (_, field) = input_schema
         .column_with_name(path_step)
         .ok_or(ArrowError::SchemaError(format!(
-            "No such field in schema {:#?}: {}",
-            input_schema, path_step,
+            "Field '{path_step}' is not in schema: {input_schema:?}"
         )))?;
     let child_opt = array.column_by_name(path_step);
     if child_opt.is_none() && field.is_nullable() {

kernel/src/scan/data_skipping.rs

@@ -4,6 +4,7 @@ use std::sync::Arc;
 
 use tracing::debug;
 
+use crate::actions::{get_log_schema, ADD_NAME};
 use crate::actions::visitors::SelectionVectorVisitor;
 use crate::error::DeltaResult;
 use crate::expressions::{BinaryOperator, Expression as Expr, UnaryOperator, VariadicOperator};
@@ -242,7 +243,8 @@ impl DataSkippingFilter {
         // 3. The selection evaluator does DISTINCT(col(predicate), 'false') to produce true (= keep) when
         //    the predicate is true/null and false (= skip) when the predicate is false.
         let select_stats_evaluator = engine.get_expression_handler().get_evaluator(
-            stats_schema.clone(),
+            // safety: kernel is very broken if we don't have the schema for Add actions
+            get_log_schema().project(&[ADD_NAME]).unwrap(),
             STATS_EXPR.clone(),
             DataType::STRING,
         );