Generate sql schema for PollMessage (#582)

* Generate sql schema for PollMessage

* Rework columns and resolve comments

* Fix datastore schema

db/src/main/resources/sql/flyway/V27__create_pollmessage.sql

@@ -0,0 +1,76 @@
+-- Copyright 2020 The Nomulus Authors. All Rights Reserved.
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+
+create table "PollMessage" (
+    type text not null,
+    poll_message_id  bigserial not null,
+    registrar_id text not null,
+    contact_repo_id text,
+    contact_revision_id int8,
+    domain_repo_id text,
+    domain_revision_id int8,
+    event_time timestamptz not null,
+    host_repo_id text,
+    host_revision_id int8,
+    message text,
+    transfer_response_contact_id text,
+    transfer_response_domain_expiration_time timestamptz,
+    transfer_response_domain_name text,
+    pending_action_response_action_result boolean,
+    pending_action_response_name_or_id text,
+    pending_action_response_processed_date timestamptz,
+    pending_action_response_client_txn_id text,
+    pending_action_response_server_txn_id text,
+    transfer_response_gaining_registrar_id text,
+    transfer_response_losing_registrar_id text,
+    transfer_response_pending_transfer_expiration_time timestamptz,
+    transfer_response_transfer_request_time timestamptz,
+    transfer_response_transfer_status text,
+    autorenew_end_time timestamptz,
+    autorenew_domain_name text,
+    primary key (poll_message_id)
+);
+
+create index IDXe7wu46c7wpvfmfnj4565abibp on "PollMessage" (registrar_id);
+create index IDXaydgox62uno9qx8cjlj5lauye on "PollMessage" (event_time);
+
+alter table if exists "PollMessage"
+   add constraint fk_poll_message_registrar_id
+   foreign key (registrar_id)
+   references "Registrar";
+
+alter table if exists "PollMessage"
+   add constraint fk_poll_message_contact_repo_id
+   foreign key (contact_repo_id)
+   references "Contact";
+
+alter table if exists "PollMessage"
+   add constraint fk_poll_message_domain_repo_id
+   foreign key (domain_repo_id)
+   references "Domain";
+
+alter table if exists "PollMessage"
+   add constraint fk_poll_message_host_repo_id
+   foreign key (host_repo_id)
+   references "HostResource";
+
+alter table if exists "PollMessage"
+   add constraint fk_poll_message_transfer_response_gaining_registrar_id
+   foreign key (transfer_response_gaining_registrar_id)
+   references "Registrar";
+
+alter table if exists "PollMessage"
+   add constraint fk_poll_message_transfer_response_losing_registrar_id
+   foreign key (transfer_response_losing_registrar_id)
+   references "Registrar";