Add schema

Author: akkomar

sql/moz-fx-data-shared-prod/accounts_backend_derived/monitoring_db_counts_v1/metadata.yaml

@@ -3,6 +3,8 @@ description: |-
   Simple aggregation of counts of records in the FxA DB tables.
   Enables to identify trends within accounts data. E.g. "How many
   inactive accounts are there?"
+  Note: because its source tables are overwritten daily, query used to
+  populate this table is not idempotent so this table should not be backfilled.
 owners:
 - [email protected]
 labels:

sql/moz-fx-data-shared-prod/accounts_backend_derived/monitoring_db_counts_v1/schema.yaml

@@ -0,0 +1,10 @@
+fields:
+- name: date
+  type: DATE
+  mode: NULLABLE
+- name: table_name
+  type: STRING
+  mode: NULLABLE
+- name: total_rows
+  type: INTEGER
+  mode: NULLABLE