Convert column to string before setting datatypes

Author: annajgibson

scripts/jobs/housing/housing_apply_gx_dq_tests.py

@@ -136,6 +136,9 @@ def main():
                       value=results_df.set_index(['expectation_config.type', 'dataset_name']).index.factorize()[0] + 1)
     results_df['expectation_id'] = results_df['expectation_config.type'] + "_" + results_df['dataset_name']
 
+    # convert single column to string to avoid conversion error later on
+    results_df['result.unexpected_list'] = results_df['result.unexpected_list'].astype(str)
+
     results_df['import_year'] = datetime.today().year
     results_df['import_month'] = datetime.today().month
     results_df['import_day'] = datetime.today().day