add logging for no match columns

capitalone · Feb 26, 2025 · 81d4914 · 81d4914
1 parent 95f3a92
commit 81d4914
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diff --git a/datacompy/core.py b/datacompy/core.py
@@ -602,6 +602,7 @@ def all_mismatch(self, ignore_matching_cols: bool = False) -> pd.DataFrame:
                         f"Column {orig_col_name} is equal in df1 and df2. It will not be added to the result."
                     )
         if len(match_list) == 0:
+            LOG.info("No match columns found, returning mismatches based on unq_rows")
             return pd.concat(
                 [
                     self.df1_unq_rows[self.join_columns],

diff --git a/datacompy/polars.py b/datacompy/polars.py
@@ -594,6 +594,7 @@ def all_mismatch(self, ignore_matching_cols: bool = False) -> pl.DataFrame:
                         f"Column {orig_col_name} is equal in df1 and df2. It will not be added to the result."
                     )
         if len(match_list) == 0:
+            LOG.info("No match columns found, returning mismatches based on unq_rows")
             return pl.concat(
                 [
                     self.df1_unq_rows.select(self.join_columns),