mv com/google/domain/registry google/registry

This change renames directories in preparation for the great package
rename. The repository is now in a broken state because the code
itself hasn't been updated. However this should ensure that git
correctly preserves history for each file.

java/google/registry/tools/sql/credit_balance_data_view.sql

@@ -0,0 +1,47 @@
+-- Credit Balance Data View SQL
+--
+-- This query post-processes RegistrarCreditBalance entities to collapse them
+-- down to one 'true' amount per credit ID and effective time, eliminating any
+-- duplicates by choosing the most recently written balance entry of the set,
+-- and then joins these 'real' balances to the CreditData view.
+--
+-- The result is a list showing how each credit's balance has developed over
+-- time, which can be used to find the actual balance of a given credit at
+-- any particular point in time (e.g. the time when invoices are run).
+SELECT
+  CreditData.registrarId AS registrarId,
+  CreditData.creditId AS creditId,
+  effectiveTime,
+  REGEXP_EXTRACT(amount, '(.+) ') AS currency,
+  INTEGER(REGEXP_REPLACE(amount, r'\D+', '')) AS amountMinor
+FROM (
+  SELECT
+    creditId,
+    effectiveTime,
+    amount,
+    ROW_NUMBER() OVER (
+      PARTITION BY
+        creditId,
+        effectiveTime
+      ORDER BY
+        writtenTime DESC
+      ) AS recencyRank
+  FROM (
+    SELECT
+      INTEGER(REGEXP_EXTRACT(__key__.path, '"RegistrarCredit", (.+?),'))
+        AS creditId,
+      effectiveTime,
+      writtenTime,
+      amount
+    FROM [%SOURCE_DATASET%.RegistrarCreditBalance]
+    )
+  ) AS BalanceData
+LEFT JOIN EACH
+  [%DEST_DATASET%.CreditData] AS CreditData
+ON
+  BalanceData.creditId = CreditData.creditId
+WHERE
+  recencyRank = 1
+ORDER BY
+  creditId,
+  effectiveTime