[Monetdb-developers] about MAL instrction

Dear all, I use MAL interface to manipulate the BAT data, I use sql.bind(,,0) to get a BAT, and use io.print() to print the BAT content, but when I use bat.insert to insert one bun to the bat,but after the bat.insert(), I run io.print() to print the BAT,but the bat content is not changed，I use sql.bind(,,,,1) to get the insert BAT of the orinal bat， but it is null. I think it it about commit() ?? how I commit it ? do I think right? Best regards!