Fixing issue with table viz for table with no metrics (#5205)
Fixing issue with table viz for table with no metrics (#5205)


apache/incubator-superset,airbnb/caravel,zhouyao1994/incubator-superset,dmigo/incubator-superset,timifasubaa/incubator-superset,airbnb/superset,mistercrunch/panoramix,zhouyao1994/incubator-superset,apache/incubator-superset,apache/incubator-superset,mistercrunch/panoramix,airbnb/caravel,airbnb/caravel,apache/incubator-superset,mistercrunch/panoramix,timifasubaa/incubator-superset,zhouyao1994/incubator-superset,zhouyao1994/incubator-superset,apache/incubator-superset,airbnb/superset,timifasubaa/incubator-superset,dmigo/incubator-superset,airbnb/superset,airbnb/caravel,airbnb/superset,dmigo/incubator-superset,zhouyao1994/incubator-superset,timifasubaa/incubator-superset,dmigo/incubator-superset,mistercrunch/panoramix