ckarlsen84

;; # EMULATING DATOMIC EXCISION VIA MANUAL DATA MIGRATION


;; *************************************
;; ## Introduction
;; *************************************

;; This Gist demonstrates a generic way to migrate an entire Datomic database
;; from an existing 'Origin Connection' to a clean 'Destination Connection',
;; while getting rid of some undesirable data and otherwise preserving history.

ckarlsen84

<Response>
    <Speak>Go Green, Go Plivo.</Speak>
</Response>

ckarlsen84

(let [meter-id "65670DEA-9891-4F03-9429-A180F9E0559F"
      from-date (t/date-time 2016 8 1)
      to-date (t/date-time 2016 8 3)]
  (->> @(r/run (-> system :rethinkdb :conn)
               [[:db "kvitebjorn"]
                [:table "hourly"]
                [:between [meter-id from-date] [meter-id to-date]
                 {:index "meter-readtime"}]
                [:pluck :meter-address :day :month :year :hour :energy1-delta :interpolated :energy1 :readtime-hour]])
       (sort-by :readtime-hour)))

ckarlsen84

(import '[kafka.admin RackAwareMode$Enforced$])
=> kafka.admin.RackAwareMode$Enforced$
RackAwareMode$Enforced$/MODULE$
=> #object[kafka.admin.RackAwareMode$Enforced$ 0x184a28ca "Enforced"]

ckarlsen84

##
## R2311 w/ simple compilation.
##

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Run!
run#    edn hash        cljs hash       value hash      value
0       -2036190660     -1807595789     1482224470      :b
1       -2036190660     -1807595789     1482224470      :b
2       -2036190660     -1807595789     1482224470      :b