Remove vulnerability_occurrences_location_temp_index

This change removes the temporary index created
for a background migration to increase the performance. Now that
the background migration is complete, we no longer need this index.

Changelog: other

db/migrate/20211214110307_remove_temp_index_from_vulnerability_occurrences.rb

+# frozen_string_literal: true
+
+class RemoveTempIndexFromVulnerabilityOccurrences < Gitlab::Database::Migration[1.0]
+  INDEX_NAME = 'vulnerability_occurrences_location_temp_index'
+
+  disable_ddl_transaction!
+
+  def up
+    remove_concurrent_index_by_name :vulnerability_occurrences, name: INDEX_NAME
+  end
+
+  def down
+    add_concurrent_index :vulnerability_occurrences, :id, where: 'location IS NULL', name: INDEX_NAME
+  end
+end

db/schema_migrations/20211214110307

+a1a6e3c5b4a8f959c55edbb084b37ba555b3977e450a549925de47605638f66e
\ No newline at end of file

db/structure.sql

@@ -28154,8 +28154,6 @@ CREATE UNIQUE INDEX vulnerability_feedback_unique_idx ON vulnerability_feedback
 
 CREATE UNIQUE INDEX vulnerability_occurrence_pipelines_on_unique_keys ON vulnerability_occurrence_pipelines USING btree (occurrence_id, pipeline_id);
 
-CREATE INDEX vulnerability_occurrences_location_temp_index ON vulnerability_occurrences USING btree (id) WHERE (location IS NULL);
-
 CREATE UNIQUE INDEX work_item_types_namespace_id_and_name_unique ON work_item_types USING btree (namespace_id, btrim(lower(name)));
 
 ALTER INDEX analytics_cycle_analytics_issue_stage_events_pkey ATTACH PARTITION gitlab_partitions_static.analytics_cycle_analytics_issue_stage_events_00_pkey;