Add `migrated_to_new_structure` column to `vulnerability_occurrences` table

db/migrate/20211129151155_add_migrated_to_new_structure_column_to_vulnerability_occurrences.rb

+# frozen_string_literal: true
+
+class AddMigratedToNewStructureColumnToVulnerabilityOccurrences < Gitlab::Database::Migration[1.0]
+  def change
+    add_column :vulnerability_occurrences, :migrated_to_new_structure, :boolean, default: false, null: false
+  end
+end

db/migrate/20211129151832_add_index_on_vulnerability_occurrences_migrated_to_new_structure_column.rb

+# frozen_string_literal: true
+
+class AddIndexOnVulnerabilityOccurrencesMigratedToNewStructureColumn < Gitlab::Database::Migration[1.0]
+  INDEX_NAME = 'index_vulnerability_occurrences_on_migrated_to_new_structure'
+
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_index :vulnerability_occurrences, [:migrated_to_new_structure, :id], name: INDEX_NAME
+  end
+
+  def down
+    remove_concurrent_index_by_name :vulnerability_occurrences, INDEX_NAME
+  end
+end

db/schema_migrations/20211129151155

+c1ba97f01fca6330628090010abb54220c0d057514386c6bb867c1b6f13f252c
\ No newline at end of file

db/schema_migrations/20211129151832

+c6d257f635049f88cd6efba903c9384a0a1af23b3c8fe6fa7f0842dcdf9f7e39
\ No newline at end of file

db/structure.sql

@@ -20828,6 +20828,7 @@ CREATE TABLE vulnerability_occurrences (
     cve text,
     location jsonb,
     detection_method smallint DEFAULT 0 NOT NULL,
+    migrated_to_new_structure boolean DEFAULT false NOT NULL,
     CONSTRAINT check_4a3a60f2ba CHECK ((char_length(solution) <= 7000)),
     CONSTRAINT check_ade261da6b CHECK ((char_length(description) <= 15000)),
     CONSTRAINT check_df6dd20219 CHECK ((char_length(message) <= 3000)),
@@ -27780,6 +27781,8 @@ CREATE INDEX index_vulnerability_occurrences_on_location_cluster_id ON vulnerabi
 
 CREATE INDEX index_vulnerability_occurrences_on_location_image ON vulnerability_occurrences USING gin (((location -> 'image'::text))) WHERE (report_type = ANY (ARRAY[2, 7]));
 
+CREATE INDEX index_vulnerability_occurrences_on_migrated_to_new_structure ON vulnerability_occurrences USING btree (migrated_to_new_structure, id);
+
 CREATE INDEX index_vulnerability_occurrences_on_primary_identifier_id ON vulnerability_occurrences USING btree (primary_identifier_id);
 
 CREATE INDEX index_vulnerability_occurrences_on_project_fingerprint ON vulnerability_occurrences USING btree (project_fingerprint);