package mysql import ( "context" "github.com/c9s/rockhopper" ) func init() { AddMigration(upIncreaseDecimalLength, downIncreaseDecimalLength) } func upIncreaseDecimalLength(ctx context.Context, tx rockhopper.SQLExecutor) (err error) { // This code is executed when the migration is applied. _, err = tx.ExecContext(ctx, "ALTER TABLE `klines`\nMODIFY COLUMN `volume` decimal(20,8) unsigned NOT NULL DEFAULT '0.00000000';") if err != nil { return err } _, err = tx.ExecContext(ctx, "ALTER TABLE `okex_klines`\nMODIFY COLUMN `volume` decimal(20,8) unsigned NOT NULL DEFAULT '0.00000000';") if err != nil { return err } _, err = tx.ExecContext(ctx, "ALTER TABLE `binance_klines`\nMODIFY COLUMN `volume` decimal(20,8) unsigned NOT NULL DEFAULT '0.00000000';") if err != nil { return err } _, err = tx.ExecContext(ctx, "ALTER TABLE `max_klines`\nMODIFY COLUMN `volume` decimal(20,8) unsigned NOT NULL DEFAULT '0.00000000';") if err != nil { return err } return err } func downIncreaseDecimalLength(ctx context.Context, tx rockhopper.SQLExecutor) (err error) { // This code is executed when the migration is rolled back. _, err = tx.ExecContext(ctx, "ALTER TABLE `klines`\nMODIFY COLUMN `volume` decimal(16,8) unsigned NOT NULL DEFAULT '0.00000000';") if err != nil { return err } _, err = tx.ExecContext(ctx, "ALTER TABLE `okex_klines`\nMODIFY COLUMN `volume` decimal(16,8) unsigned NOT NULL DEFAULT '0.00000000';") if err != nil { return err } _, err = tx.ExecContext(ctx, "ALTER TABLE `binance_klines`\nMODIFY COLUMN `volume` decimal(16,8) unsigned NOT NULL DEFAULT '0.00000000';") if err != nil { return err } _, err = tx.ExecContext(ctx, "ALTER TABLE `max_klines`\nMODIFY COLUMN `volume` decimal(16,8) unsigned NOT NULL DEFAULT '0.00000000';") if err != nil { return err } return err }