As far as my understanding the issue at that time was inability to process

of a database and connecting to it with one query string and that can be
solved by

fixing transaction restriction checks for CREATE DATABASE or disallowing

queries in PQexe.

If the issue solved and allowing multiple queries in PQexec doesn’t result
in SQL injection

attacks that worth backwards-compatibility breakage by itself the item can
be drop or

included to v4 Protocol section if it contains items that break
backwards-compatibility already



On Thu, Mar 2, 2017 at 1:02 AM, Jim Nasby <> wrote:

> On 2/28/17 2:45 PM, Andres Freund wrote:
>> So if you don't want to allow multiple statements, use PQexecParams et
>> al.
> That does leave most application authors out in the cold though, since
> they're using a higher level connection manager.
> If the maintenance burden isn't terribly high it would be nice to allow
> disabling multiple statements via a GUC.
> --
> Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX
> Experts in Analytics, Data Architecture and PostgreSQL
> Data in Trouble? Get it in Treble!
> 855-TREBLE2 (855-873-2532)

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