changed dashboard configuration column type

application/src/main/java/org/thingsboard/server/service/install/SqlDatabaseUpgradeService.java

@@ -426,6 +426,7 @@ public class SqlDatabaseUpgradeService implements DatabaseEntitiesUpgradeService
                     log.info("Updating schema ...");
                     try {
                         conn.createStatement().execute("CREATE INDEX IF NOT EXISTS idx_device_device_profile_id ON device(tenant_id, device_profile_id);");
+                        conn.createStatement().execute("ALTER TABLE dashboard ALTER COLUMN configuration TYPE varchar;");
                         conn.createStatement().execute("UPDATE tb_schema_settings SET schema_version = 3002001;");
                     } catch (Exception e) {
                         log.error("Failed updating schema!!!", e);

dao/src/main/resources/sql/schema-entities-hsql.sql

@@ -114,7 +114,7 @@ CREATE TABLE IF NOT EXISTS customer (
 CREATE TABLE IF NOT EXISTS dashboard (
     id uuid NOT NULL CONSTRAINT dashboard_pkey PRIMARY KEY,
     created_time bigint NOT NULL,
-    configuration varchar(10000000),
+    configuration varchar,
     assigned_customers varchar(1000000),
     search_text varchar(255),
     tenant_id uuid,

dao/src/main/resources/sql/schema-entities.sql

@@ -132,7 +132,7 @@ CREATE TABLE IF NOT EXISTS customer (
 CREATE TABLE IF NOT EXISTS dashboard (
     id uuid NOT NULL CONSTRAINT dashboard_pkey PRIMARY KEY,
     created_time bigint NOT NULL,
-    configuration varchar(10000000),
+    configuration varchar,
     assigned_customers varchar(1000000),
     search_text varchar(255),
     tenant_id uuid,