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fix: mysql数据库为空时无法备份

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耗子
2024-10-28 21:10:49 +08:00
parent 44c370a119
commit 1e4285b516
1 changed files with 1 additions and 1 deletions
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2
pkg/db/mysql.go
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@@ -94,7 +94,7 @@ func (m *MySQL) DatabaseExists(name string) (bool, error) {
func (m *MySQL) DatabaseSize(name string) (int64, error) {
var size int64
err := m.QueryRow(fmt.Sprintf("SELECT SUM(data_length + index_length) FROM information_schema.tables WHERE table_schema = '%s'", name)).Scan(&size)
err := m.QueryRow(fmt.Sprintf("SELECT COALESCE(SUM(data_length) + SUM(index_length), 0) FROM information_schema.tables WHERE table_schema = '%s'", name)).Scan(&size)
return size, err
}