internal/db: changes for pagination

internal/db/schema/migrations/oss/postgres/100/03_storage_policy_updates.up.sql

@@ -0,0 +1,27 @@
+-- Copyright (c) HashiCorp, Inc.
+-- SPDX-License-Identifier: BUSL-1.1
+
+begin;
+
+  create table policy_storage_policy_deleted (
+    public_id wt_public_id primary key,
+    delete_time wt_timestamp not null
+  );
+  comment on table policy_storage_policy_deleted is
+    'policy_storage_policy_deleted holds the ID and delete_time of every deleted storage policy. '
+    'It is automatically trimmed of records older than 30 days by a job.';
+
+  create trigger insert_deleted_id after delete on policy_storage_policy
+    for each row execute function insert_deleted_id('policy_storage_policy_deleted');
+
+  create index policy_storage_policy_deleted_delete_time_idx on policy_storage_policy_deleted (delete_time);
+
+  -- Add new indexes for the create time and update time queries.
+  create index policy_storage_policy_create_time_public_id_idx
+      on policy_storage_policy (create_time desc, public_id desc);
+  create index policy_storage_policy_update_time_public_id_idx
+      on policy_storage_policy (update_time desc, public_id desc);
+
+  analyze policy_storage_policy;
+
+commit;

internal/db/sqltest/tests/pagination/storage_policy.sql

@@ -0,0 +1,20 @@
+-- Copyright (c) HashiCorp, Inc.
+-- SPDX-License-Identifier: BUSL-1.1
+
+begin;
+  select plan(2);
+
+  select has_index(
+    'policy_storage_policy',
+    'policy_storage_policy_create_time_public_id_idx',
+    array['create_time', 'public_id']
+  );
+  select has_index(
+    'policy_storage_policy',
+    'policy_storage_policy_update_time_public_id_idx',
+    array['update_time', 'public_id']
+  );
+
+  select * from finish();
+
+rollback;