Transaction grouping method in blockchain and blockchain node

Abstract

A transaction grouping method in a blockchain and a blockchain node, the method comprising: obtaining a plurality of transactions, the plurality of transactions invoking a same contract, the plurality of transactions comprising a plurality of first transactions, each of the first transactions including access to a first variable of the contract in execution, the first variable corresponding to a mapping relationship in the contract; obtaining a mapping relationship identifier corresponding to each first variable that will be accessed in execution by the first transaction, wherein a storage location of each first variable in a state database is determined based on the mapping relationship identifier corresponding to the first variable; and grouping the plurality of first transactions based on the mapping relationship identifier corresponding to each first transaction.

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