From e41858ef15487e0ee7d3e77832b09b1627e533c7 Mon Sep 17 00:00:00 2001
From: Maxime Beauchemin <maximebeauchemin@gmail.com>
Date: Wed, 13 Jun 2018 22:45:03 -0700
Subject: [PATCH] Introduce class attr BaseViz.enforce_numerical_metrics
 (#5176)

(cherry picked from commit a1095437bc11fa29986f8d283a887d44343b22d3)
---
 superset/viz.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/superset/viz.py b/superset/viz.py
index f61a7f4eb4b20..adb3efdc913ec 100644
--- a/superset/viz.py
+++ b/superset/viz.py
@@ -59,6 +59,7 @@ class BaseViz(object):
     is_timeseries = False
     default_fillna = 0
     cache_type = 'df'
+    enforce_numerical_metrics = True
 
     def __init__(self, datasource, form_data, force=False):
         if not datasource:
@@ -205,7 +206,8 @@ def get_df(self, query_obj=None):
                     df[DTTM_ALIAS] += timedelta(hours=self.datasource.offset)
                 df[DTTM_ALIAS] += self.time_shift
 
-            self.df_metrics_to_num(df, query_obj.get('metrics') or [])
+            if self.enforce_numerical_metrics:
+                self.df_metrics_to_num(df, query_obj.get('metrics') or [])
 
             df.replace([np.inf, -np.inf], np.nan)
             fillna = self.get_fillna_for_columns(df.columns)
@@ -480,6 +482,7 @@ class TableViz(BaseViz):
     verbose_name = _('Table View')
     credits = 'a <a href="https://github.com/airbnb/superset">Superset</a> original'
     is_timeseries = False
+    enforce_numerical_metrics = False
 
     def should_be_timeseries(self):
         fd = self.form_data