From e269a1ce6564f3b95ca981f77fe4d433bb19fbd2 Mon Sep 17 00:00:00 2001
From: Ville Brofeldt <ville.brofeldt@iki.fi>
Date: Thu, 26 Apr 2018 23:33:08 +0300
Subject: [PATCH] Fix regression in timestamp expression

Change to superset/connectors/sqla/models.py in #4821 introduced a regression, breaking time grain rendering.
---
 superset/connectors/sqla/models.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/superset/connectors/sqla/models.py b/superset/connectors/sqla/models.py
index c65df0209a82b..83fe3971c606c 100644
--- a/superset/connectors/sqla/models.py
+++ b/superset/connectors/sqla/models.py
@@ -131,7 +131,7 @@ def get_timestamp_expression(self, time_grain):
                     expr = db_spec.epoch_ms_to_dttm().format(col=expr)
             grain = self.table.database.grains_dict().get(time_grain)
             literal = grain.function if grain else '{col}'
-            literal = expr.format(col=expr)
+            literal = literal.format(col=expr)
         return literal_column(literal, type_=DateTime).label(DTTM_ALIAS)
 
     @classmethod