Error on missing column during cell path

TODO.md

@@ -27,9 +27,9 @@
 - [x] Source
 - [x] Error shortcircuit (stopping on first error). Revised: errors emit first, but can be seen by commands.
 - [x] Value serialization
+- [x] Handling rows with missing columns during a cell path
 - [ ] Input/output types
 - [ ] Support for `$in`
-- [ ] Handling rows with missing columns during a cell path
 - [ ] ctrl-c support
 - [ ] operator overflow
 - [ ] finish operator type-checking

src/tests.rs

@@ -666,3 +666,11 @@ fn earlier_errors() -> TestResult {
         "int",
     )
 }
+
+#[test]
+fn missing_column_error() -> TestResult {
+    fail_test(
+        r#"([([[name, size]; [ABC, 10], [DEF, 20]]).1, ([[name]; [HIJ]]).0]).size | table"#,
+        "cannot find column",
+    )
+}