How many transactions per second Postgresql supports

Is there are any documented details on what is the maximum tr开发者_开发问答ansactions per second Postgresql can perform (transaction (begin-----end)

Thanks,

The TPS will depend enormously on

• Hardware
• What you are actually doing in the transaction

You can get an idea of the relative perfomance of various RDBMS comparisons at http://en.wikipedia.org/wiki/Transaction_Processing_Performance_Council