[7.x] Implement stats aggregation for string terms#49097

Merged

csoulios merged 2 commits intoelastic:7.xfrom csoulios:feature/string_stats_7x

Nov 15, 2019

+1,153-9

Commits on Nov 14, 2019

Implement stats aggregation for string terms (elastic#47468 )
csoulios
committed

Commits on Nov 15, 2019

Fix broken unit test
csoulios
committed