rename db_name param to name

a shard isn't necessarily a db

Change-Id: I1f68272cb71c85f8af7a76b913ce7491881dcd34
Reviewed-on: https://gerrit.instructure.com/43856
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Nick Cloward <ncloward@instructure.com>
Product-Review: Cody Cutrer <cody@instructure.com>
QA-Review: Cody Cutrer <cody@instructure.com>
uniq a multi-shard pluck on a uniq scope

Change-Id: I7172541ea86d6992fe21cdd8e7a60bb40820f00e
Reviewed-on: https://gerrit.instructure.com/44600
Tested-by: Cody Cutrer <cody@instructure.com>
Reviewed-by: Rob Orton <rob@instructure.com>
Product-Review: Cody Cutrer <cody@instructure.com>
QA-Review: Cody Cutrer <cody@instructure.com>
bump version

Change-Id: I21787239c0e1acf685597604585e8777ee1f9693