I should have been more specific,

the python code is done as

       ro_transaction = DB.trans(fdb.ISOLATION_LEVEL_READ_COMMITED_RO)
        cur = ro_transaction.cursor()
    else:
        cur = DB.cursor()

I don't see any reason this should perform better but colleagues disagree


Kind Regards,
Nick

Nick Upson | Principal Operations Engineer
office +44 01799 588800 support hotline +44 1799 399200
DDI +44 01799 588621

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________________________________
From: [email protected] <[email protected]> on 
behalf of Dimitry Sibiryakov [email protected] [firebird-support] 
<[email protected]>
Sent: 19 June 2019 16:59
To: [email protected]
Subject: Re: [firebird-support] rw vs ro connections

19.06.2019 17:51, Nick Upson [email protected] [firebird-support] wrote:
> Should I expect any performance gain if I change my rw connections to ro, 
> given that the
> query is always of the form "select * from ..."

   At first, there is no such things as "ro connection".
   At second, ro transactions have no performance advantage.


--
   WBR, SD.


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