Remove obsolete column for DevOps analytics

Changelog: removed

db/post_migrate/20211007093340_remove_analytics_snapshots_segment_id_column.rb

+# frozen_string_literal: true
+
+class RemoveAnalyticsSnapshotsSegmentIdColumn < Gitlab::Database::Migration[1.0]
+  disable_ddl_transaction!
+
+  def up
+    remove_column :analytics_devops_adoption_snapshots, :segment_id
+  end
+
+  def down
+    add_column :analytics_devops_adoption_snapshots, :segment_id, :bigint, after: :id
+    add_concurrent_foreign_key :analytics_devops_adoption_snapshots, :analytics_devops_adoption_segments,
+                    column: :segment_id, name: 'fk_rails_25da9a92c0', on_delete: :cascade
+    add_concurrent_index :analytics_devops_adoption_snapshots, [:segment_id, :end_time], name: :index_on_snapshots_segment_id_end_time
+    add_concurrent_index :analytics_devops_adoption_snapshots, [:segment_id, :recorded_at], name: :index_on_snapshots_segment_id_recorded_at
+  end
+end

db/schema_migrations/20211007093340

+fbb3092caba901ddd5a740bb67a91d1c8a4c458651afaf02704399844acbd2b8
\ No newline at end of file

db/structure.sql

@@ -9912,7 +9912,6 @@ ALTER SEQUENCE analytics_devops_adoption_segments_id_seq OWNED BY analytics_devo
 
 CREATE TABLE analytics_devops_adoption_snapshots (
     id bigint NOT NULL,
-    segment_id bigint,
     recorded_at timestamp with time zone NOT NULL,
     issue_opened boolean NOT NULL,
     merge_request_opened boolean NOT NULL,
@@ -25914,10 +25913,6 @@ CREATE INDEX index_on_projects_lower_path ON projects USING btree (lower((path):
 
 CREATE INDEX index_on_routes_lower_path ON routes USING btree (lower((path)::text));
 
-CREATE INDEX index_on_snapshots_segment_id_end_time ON analytics_devops_adoption_snapshots USING btree (segment_id, end_time);
-
-CREATE INDEX index_on_snapshots_segment_id_recorded_at ON analytics_devops_adoption_snapshots USING btree (segment_id, recorded_at);
-
 CREATE INDEX index_on_users_lower_email ON users USING btree (lower((email)::text));
 
 CREATE INDEX index_on_users_lower_username ON users USING btree (lower((username)::text));
@@ -28604,9 +28599,6 @@ ALTER TABLE ONLY incident_management_oncall_rotations
 ALTER TABLE ONLY ci_unit_test_failures
     ADD CONSTRAINT fk_rails_259da3e79c FOREIGN KEY (unit_test_id) REFERENCES ci_unit_tests(id) ON DELETE CASCADE;
 
-ALTER TABLE ONLY analytics_devops_adoption_snapshots
-    ADD CONSTRAINT fk_rails_25da9a92c0 FOREIGN KEY (segment_id) REFERENCES analytics_devops_adoption_segments(id) ON DELETE CASCADE;
-
 ALTER TABLE ONLY cluster_agents
     ADD CONSTRAINT fk_rails_25e9fc2d5d FOREIGN KEY (project_id) REFERENCES projects(id) ON DELETE CASCADE;