Fix for entity view keys sql field

+--
+-- Copyright © 2016-2018 The Thingsboard Authors
+--
+-- 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.
+--
+
+ALTER TABLE entity_view ALTER COLUMN keys SET DATA TYPE varchar(10000000);
\ No newline at end of file

@@ -101,11 +101,17 @@ public class ThingsboardInstallService {
                         log.info("Upgrading ThingsBoard from version 2.1.1 to 2.1.2 ...");
 
                         databaseUpgradeService.upgradeDatabase("2.1.1");
+
                     case "2.1.3":
                         log.info("Upgrading ThingsBoard from version 2.1.3 to 2.2.0 ...");
 
                         databaseUpgradeService.upgradeDatabase("2.1.3");
 
+                    case "2.2.0":
+                        log.info("Upgrading ThingsBoard from version 2.2.0 to 2.2.1 ...");
+
+                        databaseUpgradeService.upgradeDatabase("2.2.0");
+
                         log.info("Updating system data...");
 
                         systemDataLoaderService.deleteSystemWidgetBundle("charts");

@@ -157,6 +157,14 @@ public class SqlDatabaseUpgradeService implements DatabaseUpgradeService {
                     log.info("Schema updated.");
                 }
                 break;
+            case "2.2.0":
+                try (Connection conn = DriverManager.getConnection(dbUrl, dbUserName, dbPassword)) {
+                    log.info("Updating schema ...");
+                    schemaUpdateFile = Paths.get(installScripts.getDataDir(), "upgrade", "2.2.1", SCHEMA_UPDATE_SQL);
+                    loadSql(schemaUpdateFile, conn);
+                    log.info("Schema updated.");
+                }
+                break;
             default:
                 throw new RuntimeException("Unable to upgrade SQL database, unsupported fromVersion: " + fromVersion);
         }

@@ -60,10 +60,6 @@ public class EntityViewEntity implements SearchTextEntity<EntityView> {
     @Column(name = ID_PROPERTY)
     private UUID id;
 
-    @Enumerated(EnumType.STRING)
-    @Column(name = ENTITY_TYPE_PROPERTY)
-    private EntityType entityType;
-
     @PartitionKey(value = 1)
     @Column(name = ModelConstants.ENTITY_VIEW_TENANT_ID_PROPERTY)
     private UUID tenantId;
@@ -76,6 +72,10 @@ public class EntityViewEntity implements SearchTextEntity<EntityView> {
     @Column(name = DEVICE_TYPE_PROPERTY)
     private String type;
 
+    @Enumerated(EnumType.STRING)
+    @Column(name = ENTITY_TYPE_PROPERTY)
+    private EntityType entityType;
+
     @Column(name = ModelConstants.ENTITY_VIEW_ENTITY_ID_PROPERTY)
     private UUID entityId;
 

@@ -236,7 +236,7 @@ CREATE TABLE IF NOT EXISTS entity_view (
     customer_id varchar(31),
     type varchar(255),
     name varchar(255),
-    keys varchar(255),
+    keys varchar(10000000),
     start_ts bigint,
     end_ts bigint,
     search_text varchar(255),