bbgo_origin/pkg/migrations/20210118163847_fix_unique_index.go
2021-01-19 23:11:07 +08:00

44 lines
947 B
Go

package migrations
import (
"context"
"github.com/c9s/rockhopper"
)
func init() {
rockhopper.AddMigration(upFixUniqueIndex, downFixUniqueIndex)
}
func upFixUniqueIndex(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
// This code is executed when the migration is applied.
_, err = tx.ExecContext(ctx, "ALTER TABLE `trades` DROP INDEX `id`;")
if err != nil {
return err
}
_, err = tx.ExecContext(ctx, "ALTER TABLE `trades` ADD UNIQUE INDEX `id` (`exchange`,`symbol`, `side`, `id`);")
if err != nil {
return err
}
return err
}
func downFixUniqueIndex(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
// This code is executed when the migration is rolled back.
_, err = tx.ExecContext(ctx, "ALTER TABLE `trades` DROP INDEX `id`;")
if err != nil {
return err
}
_, err = tx.ExecContext(ctx, "ALTER TABLE `trades` ADD UNIQUE INDEX `id` (`id`);")
if err != nil {
return err
}
return err
}