9:00
> 4 9:00
> 5 9:00
> 1 9:00(to be deleted)
> 2 8:00
> 6 9:00
> then,for records in big which have the same id,max updatetime stays.
>
>
>
> --
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> mailing-list-archive.1130556.n5.
stays.
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hello，
my team is trying to implement merge operation,
merge scenario like the following:
compare records in two tables(same structure,different amout of
records)and modify big one ,
1. if small.id=big.id and small.date
