Re: JDBC driver - is "getGeneratedKeys()" guaranteed to return the ids in the same order a batch insert was made?

Dave Cramer <davecramer@postgres.rocks> · Tue, 8 Dec 2020 18:23:44 -0500

On Sun, 6 Dec 2020 at 15:52, electrotype <electrotype@xxxxxxxxx> wrote:

    Hi,

      Using JDBC, I batch insert multiple rows ("executeBatch()").
      I then use 'getGeneratedKeys("id")' to get the
      generated ids ("id" is a "SERIAL PRIMARY KEY" column).

      My question: does the PostgreSQL JDBC driver guarantees that
      the order of the returned generated ids will be the same as the
      rows to insert have been specified, using "addBatch()"?

      The best "answer" to that question I have found is
      https://stackoverflow.com/a/16119489/843699 , but it is not 100%
      clear.

      Would it be possible to have an official answer on this?

I can't see how they could possibly be out of order. 

Dave Cramer
www.postgres.rocks 

      Thanks in advance!