Thank you 1nickt for raising my attention to the difference between DB connections and DB handles. That is a very good point.

I readily admit that:

  • I don't understand the exact nature of how Perl uses a DBH and how Postgres sees it
  • using a separate DB connection instead for each child feels intuitively right
  • my understanding and use of the terms 'thread' and 'process' are not fully mature and somewhat imprecise
  • I have never used SQL::Abstract but upon having a cursory glance after your example it looks like a good option that may save me some code
  • I've also never used MCE - this is not as easy to understand and I'll have to look into it

    • In reply to Re^2: Create parallel database handles... (MCE::Loop) by perlygapes
    in thread Create parallel database handles or SQL statements for multi-threaded/process access to Postgres DB using DBI, DBD::Pg and Parallel::ForkManager by perlygapes

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