supermq/re/postgres/init.go

// Copyright (c) Abstract Machines
// SPDX-License-Identifier: Apache-2.0

package postgres

import (
	_ "github.com/jackc/pgx/v5/stdlib" // required for SQL access
	migrate "github.com/rubenv/sql-migrate"
)

func Migration() *migrate.MemoryMigrationSource {
	return &migrate.MemoryMigrationSource{
		Migrations: []*migrate.Migration{
			{
				Id: "rules_01",
				// VARCHAR(36) for colums with IDs as UUIDS have a maximum of 36 characters
				// STATUS 0 to imply enabled and 1 to imply disabled
				Up: []string{
					`CREATE TABLE IF NOT EXISTS rules (
						id			 	 VARCHAR(36) PRIMARY KEY,
						name			 VARCHAR(1024),
						domain_id		 VARCHAR(36) NOT NULL,
						metadata	 	 JSONB,
						created_at		 TIMESTAMP,
						updated_at		 TIMESTAMP,
						updated_by  	 VARCHAR(254),
						input_channel    VARCHAR(36),
						input_topic  	 TEXT,
						output_channel   VARCHAR(36),
						output_topic 	 TEXT,
						status	     	 SMALLINT NOT NULL DEFAULT 0 CHECK (status >= 0),
						logic_type  	 SMALLINT NOT NULL DEFAULT 0 CHECK (status >= 0),
						logic_value 	 BYTEA,
						recurring_time 	 TIMESTAMP[],
						recurring_type   SMALLINT,
						recurring_period SMALLINT
					)`,
				},
				Down: []string{
					`DROP TABLE IF EXISTS rules`,
				},
			},
		},
	}
}