feat: add legacy_telemetry_client_id to enterprise_metrics_clients_v1 and update table description to explicitly describe Glean as the source

Author: kik-kik

sql/moz-fx-data-shared-prod/firefox_desktop_derived/enterprise_metrics_clients_v1/metadata.yaml

@@ -1,6 +1,6 @@
-friendly_name: Enterprise Metrics (clients)
+friendly_name: Enterprise Metrics (clients) - Glean
 description: |-
-  Enterprise Metrics (clients).
+  Enterprise Metrics (clients) based on Glean telemetry.
 owners:
 - [email protected]
 - [email protected]

sql/moz-fx-data-shared-prod/firefox_desktop_derived/enterprise_metrics_clients_v1/query.sql

@@ -4,6 +4,7 @@ WITH client_baseline AS (
       submission_date,
       client_id,
       sample_id,
+      legacy_telemetry_client_id,
       channel,
       distribution_id,
       is_daily_user,
@@ -32,6 +33,7 @@ WITH client_baseline AS (
     SELECT
       client_id,
       sample_id,
+      legacy_telemetry_client_id,
       channel,
       is_dau,
     FROM
@@ -43,6 +45,7 @@ WITH client_baseline AS (
   SELECT
     client_id,
     sample_id,
+    legacy_telemetry_client_id,
     channel AS normalized_channel,
     distribution_id,
     is_dau,
@@ -82,6 +85,7 @@ SELECT
   is_dau,
   policies_count,
   policies_is_enterprise,
+  legacy_telemetry_client_id,
 FROM
   client_baseline
 LEFT JOIN

sql/moz-fx-data-shared-prod/firefox_desktop_derived/enterprise_metrics_clients_v1/schema.yaml

@@ -49,3 +49,9 @@ fields:
   description: |
     Attempt to determine if the user is an enterprise user based on various signals.
     This metric was generated to correspond to the Legacy Telemetry scalar policies.is_enterprise
+
+- mode: NULLABLE
+  name: legacy_telemetry_client_id
+  type: STRING
+  description: |
+    A unique identifier (UUID) for the client in legacy telemetry.