NAME
    DBIx::SQLEngine::Docs::Changes - Revision history for DBIx::SQLEngine.

HISTORY
  Version 0.022

    2004-04-09 Released as DBIx-SQLEngine-0.022.

    2004-04-09 Merged many methods from DBIx::DBO2::RecordSet into
    Record::Set.

    2004-04-09 Added Record::Trait::Accessors and increased the minimum
    version of Class::MakeMethods to 1.006 to get the Autoload interface it
    uses.

    2004-04-09 Added Record::Trait::Cached based on
    DBIx::DBO2::Record::Cached. Added cache packages
    DBIx::SQLEngine::Cache::TrivialCache and
    DBIx::SQLEngine::Cache::BasicCache.

    2004-04-09 Added Record::Trait::Hooks based on DBIx::DBO2::Record and
    built a few tests.

    2004-04-09 Initial working support for multiply-combinable Record class
    traits. Moved traits into nested namespaces Driver::Trait and
    Record::Trait.

    2004-04-09 Revised synopsis and description to include more recent
    features.

    2004-04-09 Added support for sql_select( columns =>
    \%colnames_as_aliases ) and sql_select( tables => { "table1.column1" =>
    "table2.column2" } ), both inspired by the interface described in the
    Sql::Simple documentation.

    2004-04-08 Fixed tight loop detection (self-reference) in
    CloneWithParameters.

    2004-04-06 Beginning support for multiply-combinable Record class
    traits.

  Version 0.021

    2004-04-05 Released as DBIx-SQLEngine-0.021.

    2004-04-05 Doc adjustments. Additional work on Record classes.

  Version 0.020

    2004-04-05 Released as DBIx-SQLEngine-0.020.

    2004-04-05 Added initial Row classes.

    2004-04-04 Added named_connection interface.

    2004-04-04 Migrated clone function to new Utility::CloneWithParams
    package. Generalized string substitution. Added more tests and
    documentation.

    2004-04-04 Renamed Mixin::* packages to DriverTrait::*.

    2004-04-04 Added "where" as a synonym for "criteria" in sql_* methods
    and changed documentation to use it instead. Added "distinct" support to
    sql_select.

  Version 0.019

    2004-04-04 Released as DBIx-SQLEngine-0.019.

    2004-04-03 Added initial support for constructing complex joins and
    Mixin::NoComplexJoins to provide emulation for the simplest inside
    joins.

    2004-04-03 Added Mixin::NoUnions to provide emulation of unions where
    needed.

    2004-04-02 Added initial support for selects with unions.

  Version 0.018

    2004-03-30 Released as DBIx-SQLEngine-0.018.

    2004-03-30 Fixed sequential type in Driver::SQLite to say "integer" not
    "int".

    2004-03-30 Removed driver for DBD::File, which isn't intended to be used
    directly.

    2004-03-30 Changed Criteria::HashGroup to asciibetically sort the hash
    keys, so that criteria are predictable for testing and better statement
    handle caching.

    2004-03-26 Fixed Mixin::SeqTable's seq_fetch_current, which returned
    undef due to scope confusion with return inside an eval block.

    2004-03-26 Minor cleanup to Schema::Table to improve documentation.

    2004-03-26 Fixed Schema::Column's new_from_hash() and type() methods.

  Version 0.017

    2004-03-26 Released as DBIx-SQLEngine-0.017.

    2004-03-26 Fixed parens in Oracle's sql_limit, with apologies to Michael
    Kroll.

    2004-03-25 Brough Schema::Table up to workable condition and added basic
    tests.

    2004-03-25 Added simple last_query method to NullP for faster testing.

    2004-03-23 Added fetch_select_rows() and visit_select_rows().

    2004-03-23 Re-ordered a few chunks of code so that the POD pages are
    clearer.

  Version 0.016

    2004-03-23 Released as DBIx-SQLEngine-0.016.

    2004-03-23 Fixed files missing from manifest.

  Version 0.015

    2004-03-22 Released as DBIx-SQLEngine-0.015.

    2004-03-22 Added some database capability methods inspired by
    DBIx::Compat.

    2004-03-22 Added create_ and drop_index methods inspired by
    DBIx::Renderer.

    2004-03-22 Added create_ and drop_database methods inspired by
    DBIx::DataSource.

    2004-03-22 Removed do_ prefix from create_ and drop_table methods, with
    aliases for backwards compatibility.

    2004-03-22 Added initial interface for DBMS stored procedures.

    2004-03-22 Added NullP subclass and null.t test with basic SQL
    generation and named query tests.

    2004-03-22 Added named_query interface to support libraries of named
    queries.

    2004-03-22 Added visit_sql_rows.

    2004-03-22 Applied patch to Driver::Oracle's sql_limit() from Michael
    Kroll.

    2004-03-22 Incorporated support for mixing explicit SQL and additional
    criteria by having sql_where() splice them together, based on a patch
    from Michael Kroll.

  Version 0.014

    2004-03-14 Released as DBIx-SQLEngine-0.014.

    2004-03-13 Fixed spacing problem for long column names in
    sql_create_columns, curtesy of a patch from Ron Savage.

    2004-03-13 Ported schema classes from DBO2 to DBIx::SQLEngine::Schema
    namespace. These are not yet in use, but will be supported through
    additions to the SQLEngine interface in upcoming versions in a way that
    should not break any existing code.

  Version 0.013

    2004-03-12 Released as DBIx-SQLEngine-0.013.

    2004-03-12 Fixed another minor POD error.

  Version 0.012

    2004-03-11 Released as DBIx-SQLEngine-0.012.

    2004-03-11 Fixed several minor POD errors. Adjusted checking of
    wantarray to preserve its value across eval{} boudaries.

  Version 0.011

    2004-03-10 Released as DBIx-SQLEngine-0.011.

    2004-03-10 Moved driver-specific subclasses to a new Driver:: namespace
    and added documentation to each of them. The external public interface
    is identical, but this may break naughty code that checked ref() or
    isa(); however the fix is straightforward and this keeps our namespaces
    clearer. If your code was negatively impacted by this, let me know for
    future reference!

    2004-02-24 Integrated some patches from Michael Kroll, including new
    Oracle subclass, and created a new Criteria::StringComparison class as
    an alternate way of addressing an issue raised in email.

  Version 0.010

    2003-09-07 Released as DBIx-SQLEngine-0.010.

  Version 0.009

    2003-02-02 Released as DBIx-SQLEngine-0.009.

    2003-02-02 Merged the "Default" class used by AnyDBD into base class via
    stash aliasing, simplifying documentation.

  Version 0.008

    2002-11-02 Released as DBIx-SQLEngine-0.008.

    2002-11-02 Added basic subclass for MSSQL.

    2002-11-02 Added "is null" support based on patches from Michael Kroll
    at University of Innsbruck.

    2002-11-02 Added some introductory documentation to
    Criteria::Comparison.

    2002-11-02 For compatibility with the CPAN installer and automated
    testing tools, the Makefile.PL now suggests that you set your
    environment's DBI_DSN, rather than prompting you to enter it
    interactively in test.pl.

    2002-11-02 Refactored test script into several separate files.

    2002-11-02 Added initial basic transaction support.

  Version 0.007

    2002-05-24 Minor error-handling improvements.

    2002-05-24 Collect and return the results from visit_* methods.

    2002-05-24 Added DBIx::SQLEngine::Criteria::Not, contributed by
    Christian Glahn at University of Innsbruck.

    2002-04-10 Added "fetch without execute" to the catch_query_exception
    handler for MySQL and Pg.

  Version 0.006

    2002-03-23 Released as DBIx-SQLEngine-0.006.

    2002-03-23 Added basic support for passing SQL functions and expressions
    to SQLEngine::Default and SQLEngine::Critera::Comparison in a way that
    allows them to be used directly, rather than being treated as literals
    and bound to placeholders.

    2002-03-01 Fixed syntax errors in MySQL subclass. Fixed suspected
    Perl-version dependency (return from inside eval) in Default detect_any.

  Version 0.005

    2002-03-01 Released as DBIx-SQLEngine-0.005.

    2002-02-19 Simon: Added Pg catch_query_exception REDO for "out of range
    0..-1". I don't know what this error means but it always seems to
    succeed when we retry.

    2002-02-10 Simon: Modified format of error messages in Default.pm

    2002-02-02 Eliminated complaint about empty subclauses in
    Criteria::Compound

    2002-01-31 Extracted Default sql_* criteria handling into
    DBIx::SQLEngine::Criteria->auto* methods.

    2002-01-31 Added catch_query_exception to Pg subclass for automatic
    reconnection.

    2002-01-31 Created new Criteria::LiteralSQL package. Remove redundant
    parentheses around single-item list in Criteria::Compound.

  Version 0.004

    2002-01-30 Released as DBIx-SQLEngine-0.004.

    2002-01-30 Expanded Pg subclass. Fixed Default's type_info handling to
    not fall over when a type has multiple info hashes (needed for Pg).
    Adjusted error handling to call $sth->finish() if there's an exception
    after we prepare but before we complete retrieving the results.

    2002-01-27 Filled out documentation, especially of the public interface
    in SQLEngine.pm. Added skeletal Pg subclass.

  Version 0.003

    2002-01-25 Released as DBIx-SQLEngine-0.003

    2002-01-21 Fixed AnyData sql_create_column_text_long_type.

    2002-01-20 Fixed typo in sql_drop_table. Added detect_any and
    detect_table methods.

    2002-01-15 Improvements to sql_create_table to support primary key
    declarations. Completed DBIx::SQLEngine::Mixin::SeqTable. Added
    DBIx::SQLEngine::CSV.

    2002-01-14 Added initial version of DBIx::SQLEngine::Mixin::SeqTable.

    2002-01-14 Fixed bug in test script; user and password were not used!
    (Bug report from Terrence Brannon.)

  Version 0.002

    2002-01-14 Released as DBIx-SQLEngine-0.002

    2002-01-13 Fixed logging scope errors. Filled in several mising chunks
    of documentation. Makefile.PL touchups for distribution.

    2001-12-01 Separated from object-relational mapping functionality. Moved
    to DBIx::SQLEngine namespace.

    2001-11-30 Began adjusting namespace for CPAN distribution. Fixed use of
    AnyDBD to not require non-standard patch.

  Version 0.001

    2001-06-28 Use DBIx::AnyDBD for platform-specific issues. Moved
    SQL-generation code from Table to SQLEngine.

    2001-06-28 Ported some Criteria classes from earlier code into the new
    SQLEngine class hierarchy.

    2001-06-27 New version moved into separate DBIx::DBO2 namespace. Renamed
    Adaptor to SQLEngine. Flattened class hierarchy; we're only going to
    support DBI. Expunged old code. Switched to new Class::MakeMethods
    distribution.

PRIOR VERSIONS
  DBO

    2001-02-14 Reversed boolean sense of 'nullable' to 'required'.

    2001-01-29 Fixed code to detect length and nullable column information.

    2001-01-29 Added boolean required to store whether column is nullable.

    2001-01-13 Added retry on "Lost connection to MySQL" errors

    2000-12-22 Added new_with_contents constructor to Criteria::Compound.

    2000-11-29 Switched to use of Class::MethodMaker 2.0 features.

    2000-03-31 Added SQL-string to execution failure.

    2000-03-03 Adjusted clear_connection.

    1999-08-18 Added MySQL tinyint column code

    1999-07-27 Added use of DBO::Column package.

    1999-04-21 Added explicit disconnect if existing connection's ping
    fails.

    1999-04-05 Added reconnect if can't ping server behaviour; add'l type
    codes

    1998-12-08 Cleanup of logging.

    1998-12-08 Added parameter handling and on-demand class loading.

    1998-11-01 Changed importing style for Class::MethodMaker.

    1998-10-05 Revised. Rewrote POD.

    1998-05-09 Moved connection behaviour from SQL Table into Adaptor
    classes.

    1998-03-16 DBAdaptor package (and subpackages) renamed to DBO::Table.

    1997-11-18 Simon: Updated to current practice.

  DBAdaptor

    1997-09-24 IntraNetics97 Version 1.00.000

    1997-08-20 Eric: Extracted DBAdaptor class from prior code.

SEE ALSO
    the DBIx::SQLEngine::ReadMe manpage