Add column evaluator

deepseek-coder-1.3b-instruct/extra/column_recall_evaluator.py

@@ -0,0 +1,24 @@
+import pandas as pd
+
+def column_recall_score(expected: pd.DataFrame, generated: pd.DataFrame) -> float:
+    if expected.shape[0] != generated.shape[0]:
+        return 0.0
+
+    matched = 0
+    used_columns = set()
+
+    for exp_col in expected.columns:
+        found = False
+
+        for gen_col in generated.columns:
+            if gen_col in used_columns:
+                continue
+
+            if expected[exp_col].equals(generated[gen_col]):
+                matched += 1
+                used_columns.add(gen_col)
+                found = True
+                break
+
+    total = expected.shape[1]
+    return matched / total if total > 0 else 0.0