Method prefetchDataCache

pkg/executor/insert.go:182–194

(ctx context.Context, txn kv.Transaction, rows []toBeCheckedRow)

}

func (e *InsertValues) prefetchDataCache(ctx context.Context, txn kv.Transaction, rows []toBeCheckedRow) error {
	// Temporary table need not to do prefetch because its all data are stored in the memory.
	if e.Table.Meta().TempTableType != model.TempTableNone {
		return nil
	}

	defer tracing.StartRegion(ctx, "prefetchDataCache").End()
	values, err := prefetchUniqueIndices(ctx, txn, rows)
	if err != nil {
		return err
	}
	return prefetchConflictedOldRows(ctx, txn, rows, values)
}

// updateDupRow updates a duplicate row to a new row.
func (e *InsertExec) updateDupRow(