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From GitBox <>
Subject [GitHub] mistercrunch closed pull request #5415: Fix db migration 3dda56f1c4c6
Date Tue, 17 Jul 2018 22:30:20 GMT
mistercrunch closed pull request #5415: Fix db migration 3dda56f1c4c6

This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:

As this is a foreign pull request (from a fork), the diff is supplied
below (as it won't show otherwise due to GitHub magic):

diff --git a/superset/migrations/versions/
index 8bb6f10068..c2a0d9af27 100644
--- a/superset/migrations/versions/
+++ b/superset/migrations/versions/
@@ -9,18 +9,20 @@
 from __future__ import division
 # revision identifiers, used by Alembic.
-revision = '3dda56f1c4c6'
-down_revision = 'bddc498dd179'
+import datetime
 import json
 from alembic import op
 import isodate
-import sqlalchemy as sa
 from sqlalchemy.ext.declarative import declarative_base
 from sqlalchemy import Column, Integer, Text
 from superset import db
+from superset.utils import parse_human_timedelta
+revision = '3dda56f1c4c6'
+down_revision = 'bddc498dd179'
 Base = declarative_base()
@@ -96,6 +98,8 @@ def format_seconds(value):
 def compute_time_compare(granularity, periods):
+    if not granularity:
+        return None
     # convert old db_engine_spec granularity to ISO duration
     if granularity in db_engine_specs_map:
         granularity = db_engine_specs_map[granularity]


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