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Merge pull request #84 from c9s/fix/unique-index

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fix unique index for binance self trade
This commit is contained in:
Yo-An Lin 2021-01-18 17:29:19 +08:00 committed by GitHub
commit 2122bc9b15
2 changed files with 58 additions and 0 deletions
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15
migrations/20210118163847_fix_unique_index.sql Normal file
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@ -0,0 +1,15 @@
-- +up
-- +begin
ALTER TABLE `trades` DROP INDEX `id`;
-- +end
-- +begin
ALTER TABLE `trades` ADD UNIQUE INDEX `id` (`exchange`,`symbol`, `side`, `id`);
-- +end
-- +down
-- +begin
ALTER TABLE `trades` DROP INDEX `id`;
-- +end
-- +begin
ALTER TABLE `trades` ADD UNIQUE INDEX `id` (`id`);
-- +end

43
pkg/migrations/20210118163847_fix_unique_index.go Normal file
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@ -0,0 +1,43 @@
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 INDEX UNIQUE `id` ON (`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 INDEX UNIQUE `id` ON (`id`);")
if err != nil {
return err
}
return err
}