
Elasticsearch 5 split string type in two: keyword (also known as exact in gerrit index type system) and text (also known as full text in gerrit index type system). During migration from Elasticsearch 2 to 5 exact type was erroneously split in exact and keyword types, that are the same. This reverts commit506125e71a
. This reverts commit09fdc3eaad
. Change-Id: I788e4d06d490687508c4bfd1703037a268fe31a5