file: $CPAN/authors/id/T/TI/TIMB/DBI-1.55.tar.gz
  size: 477884 bytes
   md5: 0a6eda0cb7dbd8e7bc49b03dbac7c3b2

=head2 Changes in DBI 1.55 (svn rev 9504),  4th May 2007

  Fixed set_err() so HandleSetErr hook is executed reliably, if set.
  Fixed accuracy of profiling when perl configured to use long doubles.
  Fixed 42prof_data.t on fast systems with poor timers thanks to Malcolm 
Nooning.
  Fixed potential corruption in selectall_arrayref and selectrow_arrayref
    for compiled drivers, thanks to Rob Davies.
    Rebuild your compiled drivers after installing DBI.

  Changed some handle creation code from perl to C code,
    to reduce handle creation cost by ~20%.
  Changed internal implementation of the CachedKids attribute
    so it's a normal handle attribute (and initially undef).
  Changed connect_cached and prepare_cached to avoid a FETCH method call,
    and thereby reduced cost by ~5% and ~30% respectively.
  Changed _set_fbav to not croak when given a wrongly sized array,
    it now warns and adjusts the row buffer to match.
  Changed some internals to improve performance with threaded perls.
  Changed DBD::NullP to be slightly more useful for testing.
  Changed File::Spec prerequisite to not require a minimum version.
  Changed tests to work with other DBMs thanks to ZMAN.
  Changed ex/perl_dbi_nulls_test.pl to be more descriptive.

  Added more functionality to the (undocumented) Callback mechanism.
    Callbacks can now elect to provide a value to be returned, in which case
    the method won't be called. A callback for "*" is applied to all methods
    that don't have their own callback.
  Added $h->{ReadOnly} attribute.
  Added support for DBI Profile Path to contain refs to scalars
    which will be de-ref'd for each profile sample.
  Added dbilogstrip utility to edit DBI logs for diff'ing (gets installed)
  Added details for SQLite 3.3 to NULL handling docs thanks to Alex Teslik.
  Added take_imp_data() to DBI::PurePerl.

  Gofer related changes:
    Fixed gofer pipeone & stream transports to avoid risk of hanging.
    Improved error handling and tracing significantly.
    Added way to generate random 1-in-N failures for methods.
    Added automatic retry-on-error mechanism to gofer transport base class.
    Added tests to show automatic retry mechanism works a treat!
    Added go_retry_hook callback hook so apps can fine-tune retry behaviour.
    Added header to request and response packets for sanity checking
      and to enable version skew between client and server.
    Added forced_single_resultset, max_cached_sth_per_dbh and 
max_cached_dbh_per_drh
      to gofer executor config.
    Driver-private methods installed with install_method are now proxied.
    No longer does a round-trip to the server for methods it knows
      have not been overridden by the remote driver.
    Most significant aspects of gofer behaviour are controlled by policy 
mechanism.
    Added policy-controlled caching of results for some methods, such as schema 
metadata.
    The connect_cached and prepare_cached methods cache on client and server.
    The bind_param_array and execute_array methods are now supported.
    Worked around a DBD::Sybase bind_param bug (which is fixed in DBD::Sybase 
1.07)
    Added goferperf.pl utility (doesn't get installed).
    Many other assorted Gofer related bug fixes, enhancements and docs.
    The http and mod_perl transports have been removed to their own 
distribution.
    Client and server will need upgrading together for this release.

=cut

Enjoy!

Tim.

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