diff --git a/scripts/postgres/schema-v1-postgresql.sql b/scripts/postgres/schema-v1-postgresql.sql
new file mode 100644
index 0000000000..3de1a7cd7e
--- /dev/null
+++ b/scripts/postgres/schema-v1-postgresql.sql
@@ -0,0 +1,94 @@
+--
+-- Licensed to the Apache Software Foundation (ASF) under one
+-- or more contributor license agreements.  See the NOTICE file--
+--  distributed with this work for additional information
+-- regarding copyright ownership.  The ASF licenses this file
+-- to you 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.
+--
+
+-- Note: Database and schema creation is not included in this script. Please create the database and
+-- schema before running this script. for example in psql:
+-- CREATE DATABASE polaris_db;
+-- \c polaris_db
+-- CREATE SCHEMA polaris_schema;
+-- set search_path to polaris_schema;
+
+CREATE TABLE IF NOT EXISTS entities (
+    catalog_id BIGINT NOT NULL,
+    id BIGINT NOT NULL,
+    parent_id BIGINT NOT NULL,
+    name TEXT NOT NULL,
+    entity_version INT NOT NULL,
+    type_code INT NOT NULL,
+    sub_type_code INT NOT NULL,
+    create_timestamp BIGINT NOT NULL,
+    drop_timestamp BIGINT NOT NULL,
+    purge_timestamp BIGINT NOT NULL,
+    to_purge_timestamp BIGINT NOT NULL,
+    last_update_timestamp BIGINT NOT NULL,
+    properties JSONB not null default '{}'::JSONB,
+    internal_properties JSONB not null default '{}'::JSONB,
+    grant_records_version INT NOT NULL,
+    PRIMARY KEY (id),
+    CONSTRAINT constraint_name UNIQUE (catalog_id, parent_id, type_code, name)
+);
+
+-- TODO: create indexes based on all query pattern.
+CREATE INDEX IF NOT EXISTS idx_entities ON entities (catalog_id, id);
+
+COMMENT ON TABLE entities IS 'all the entities';
+
+COMMENT ON COLUMN entities.catalog_id IS 'catalog id';
+COMMENT ON COLUMN entities.id IS 'entity id';
+COMMENT ON COLUMN entities.parent_id IS 'entity id of parent';
+COMMENT ON COLUMN entities.name IS 'entity name';
+COMMENT ON COLUMN entities.entity_version IS 'version of the entity';
+COMMENT ON COLUMN entities.type_code IS 'type code';
+COMMENT ON COLUMN entities.sub_type_code IS 'sub type of entity';
+COMMENT ON COLUMN entities.create_timestamp IS 'creation time of entity';
+COMMENT ON COLUMN entities.drop_timestamp IS 'time of drop of entity';
+COMMENT ON COLUMN entities.purge_timestamp IS 'time to start purging entity';
+COMMENT ON COLUMN entities.last_update_timestamp IS 'last time the entity is touched';
+COMMENT ON COLUMN entities.properties IS 'entities properties json';
+COMMENT ON COLUMN entities.internal_properties IS 'entities internal properties json';
+COMMENT ON COLUMN entities.grant_records_version IS 'the version of grant records change on the entity';
+
+CREATE TABLE IF NOT EXISTS grant_records (
+    securable_catalog_id BIGINT NOT NULL,
+    securable_id BIGINT NOT NULL,
+    grantee_catalog_id BIGINT NOT NULL,
+    grantee_id BIGINT NOT NULL,
+    privilege_code INTEGER,
+    PRIMARY KEY (securable_catalog_id, securable_id, grantee_catalog_id, grantee_id, privilege_code)
+);
+
+COMMENT ON TABLE grant_records IS 'grant records for entities';
+
+COMMENT ON COLUMN grant_records.securable_catalog_id IS 'catalog id of the securable';
+COMMENT ON COLUMN grant_records.securable_id IS 'entity id of the securable';
+COMMENT ON COLUMN grant_records.grantee_catalog_id IS 'catalog id of the grantee';
+COMMENT ON COLUMN grant_records.grantee_id IS 'id of the grantee';
+COMMENT ON COLUMN grant_records.privilege_code IS 'privilege code';
+
+
+CREATE TABLE IF NOT EXISTS principal_authentication_data (
+    principal_id BIGINT NOT NULL,
+    principal_client_id VARCHAR(255) NOT NULL,
+    main_secret_hash VARCHAR(255) NOT NULL,
+    secondary_secret_hash VARCHAR(255) NOT NULL,
+    secret_salt VARCHAR(255) NOT NULL,
+    PRIMARY KEY (principal_client_id)
+);
+
+COMMENT ON TABLE principal_authentication_data IS 'authentication data for client';