package mysql import ( "context" "github.com/c9s/rockhopper" ) func init() { AddMigration(upKlines, downKlines) } func upKlines(ctx context.Context, tx rockhopper.SQLExecutor) (err error) { // This code is executed when the migration is applied. _, err = tx.ExecContext(ctx, "CREATE TABLE `klines`\n(\n `gid` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,\n `exchange` VARCHAR(10) NOT NULL,\n `start_time` DATETIME(3) NOT NULL,\n `end_time` DATETIME(3) NOT NULL,\n `interval` VARCHAR(3) NOT NULL,\n `symbol` VARCHAR(20) NOT NULL,\n `open` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `high` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `low` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `close` DECIMAL(16, 8) UNSIGNED NOT NULL DEFAULT 0.0,\n `volume` DECIMAL(16, 8) UNSIGNED NOT NULL DEFAULT 0.0,\n `closed` BOOL NOT NULL DEFAULT TRUE,\n `last_trade_id` INT UNSIGNED NOT NULL DEFAULT 0,\n `num_trades` INT UNSIGNED NOT NULL DEFAULT 0,\n PRIMARY KEY (`gid`)\n);") if err != nil { return err } _, err = tx.ExecContext(ctx, "CREATE INDEX `klines_end_time_symbol_interval` ON klines (`end_time`, `symbol`, `interval`);") if err != nil { return err } _, err = tx.ExecContext(ctx, "CREATE TABLE `okex_klines` LIKE `klines`;") if err != nil { return err } _, err = tx.ExecContext(ctx, "CREATE TABLE `binance_klines` LIKE `klines`;") if err != nil { return err } _, err = tx.ExecContext(ctx, "CREATE TABLE `max_klines` LIKE `klines`;") if err != nil { return err } return err } func downKlines(ctx context.Context, tx rockhopper.SQLExecutor) (err error) { // This code is executed when the migration is rolled back. _, err = tx.ExecContext(ctx, "DROP INDEX `klines_end_time_symbol_interval` ON `klines`;") if err != nil { return err } _, err = tx.ExecContext(ctx, "DROP TABLE `binance_klines`;") if err != nil { return err } _, err = tx.ExecContext(ctx, "DROP TABLE `okex_klines`;") if err != nil { return err } _, err = tx.ExecContext(ctx, "DROP TABLE `max_klines`;") if err != nil { return err } _, err = tx.ExecContext(ctx, "DROP TABLE `klines`;") if err != nil { return err } return err }