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Commits on Nov 1, 2011
  1. Bump version to 3.29.0

    authored
Commits on Oct 31, 2011
Commits on Oct 22, 2011
Commits on Oct 18, 2011
Commits on Oct 14, 2011
  1. Add native prepared statement support to the oracle adapter

    authored
    Unfortunately, ruby-OCI8 doesn't know what to do with nil values
    if you don't specify a type, so add in type specifying support
    similar to the postgres adapter, using a __* suffix for the
    placeholder.
    
    This also catches RuntimeErrors raised when running queries.
    ruby-oci8 raises strings, so these should be reraised as
    DatabaseErrors.
Commits on Oct 13, 2011
Commits on Oct 12, 2011
  1. Support :rollback => :always|:reraise options for Database#transaction

    authored
    :always will always rollback, :reraise will reraise any
    Sequel::Rollback exceptions raised by the block.
  2. Add support for connecting to Apache Derby databases using the jdbc a…

    authored
    …dapter
    
    Sequel will load the jdbc-derby gem automatically for this adapter,
    but the gem version is currently for Derby 10.6, which lacks
    support for booleans and truncate.  The latest release of Derby is
    10.8, which supports both, so I'd recommend using the .jar file
    until the gem is updated.  I'll only be testing with the 10.8
    .jar file.
Commits on Oct 11, 2011
  1. Add support for connecting to HSQLDB using the jdbc adapter

    authored
    This was thankfully fairly easy, as HSQLDB sticks very close to
    the SQL standard.  There are a few things that HSQLDB supports
    that Sequel does not enable, such as savepoints (HSQLDB seems not
    to respect transaction statements in SQL, only the java methods
    on the connection object, and Sequel doesn't support savepoints
    using java methods in the jdbc transaction support), but almost
    everything works (only 2 pending specs).
    
    Note that this will not work with the jdbc-hsqldb gem, as that
    uses 1.8.1.3, and the HSQLDB documentation for 1.8.1.3 plain
    lies and I don't feel like supporting it (I'll accept patches
    that don't break 2.2.5).  You'll need to require the 2.2.5
    hsqldb.jar file manually to use this jdbc subadapter, like you
    do with the jdbc subadapters that don't have gems, at least
    until the jdbc-hsqldb gem is updated.
    
    There are a couple of minor spec changes (other than guards)
    that fix specs on HSQLDB.  These changes were made as they
    don't affect the purposes of the specs, and the previous
    code was causing failures on HSQLDB.
Commits on Oct 7, 2011
Commits on Oct 4, 2011
Commits on Oct 3, 2011
  1. Bump version to 3.28.0

    authored
Commits on Sep 26, 2011
Commits on Sep 19, 2011
  1. Add support for an :eager_limit_strategy => :correlated_subquery valu…

    authored
    …e for limiting using correlated subqueries
    
    This will never be used by default as it can generate very slow
    queries if not used wisely.  But for databases that don't support
    window functions, this may be the best way to eagerly load limited
    associations.
    
    Unforatunately, due to MySQL bugs, the :correlated_subquery
    strategy doesn't work on MySQL.  MySQL doesn't allow a LIMIT
    directly in an IN subselect, and when you work around that using a
    nested subquery, it appears MySQL doesn't handle the correlation
    properly.
    
    This also doesn't work correctly on DB2, probably because DB2's
    scoping only looks in the directly enclosing scope and not all
    enclosing scopes.
    
    This also contains another spec for the window_function case
    in many_through_many, some spec description fixes in
    many_through_many, as well as a fix if the core extensions
    are not enabled.
Commits on Sep 18, 2011
Commits on Sep 15, 2011
  1. Add support for an :eager_limit_strategy => :window_function value fo…

    authored
    …r limiting using window functions
    
    This works for all association types that do eager limiting.  It's
    the default type used by datasets that support window functions,
    assuming you are using :eager_limit_strategy=>true to enable the
    support (except for one_to_one on PostgreSQL, which uses
    :distinct_on).
    
    Basically, the row_number window function is added to the query in
    a subselect, and the main query does a filter on the row number
    to remove rows outside the range of row numbers you are looking
    for.  The row_number window function uses a partition so there is
    a separate series for each of the main objects, which is how you
    can get eager loading to work correctly.
    
    This can be much faster than the default :ruby method for limiting
    eagerly loaded associations, if your limit is small compared to
    the number of rows actually associated.
  2. Add support for an :eager_limit_strategy => :distinct_on value for on…

    authored
    …e_to_one associations for using DISTINCT ON
    
    If you are using PostgreSQL with a one_to_one association that
    does not represent a true one_to_one relationship, but a
    one_to_many where many objects are associated but you are using
    :order on the association to pick the first associated one,
    this could be a major performance improvement.
Commits on Sep 14, 2011
Commits on Sep 1, 2011
  1. Bump version to 3.27.0

    authored
Commits on Aug 24, 2011
Commits on Aug 12, 2011
  1. Add support for native prepared statements to the tinytds adapter

    authored
    The dataset part is mostly borrowed from the sqlite support.  The
    database part is based on code in the ActiveRecord SQL Server
    adapter (thanks metaskills).
  2. Add support for native prepared statements and stored procedures to t…

    authored
    …he mysql2 adapter
    
    The mysql and mysql2 adapters are very similar, so this extracts
    the existing support from the mysql adapter into a shared adapter
    that both the mysql and mysql2 adapter can use.
    
    mysql2 doesn't appear to support stored procedures that return
    results, but it does support other types of prepared statements.
    I think this could be fixed by setting flags when connecting,
    but I'm not sure that Mysql2 supports the same flags that
    Mysql does (it has CLIENT_PS_MULTI_RESULTS but not
    CLIENT_MULTI_RESULTS).
Commits on Aug 11, 2011
Commits on Aug 4, 2011
Commits on Aug 1, 2011
  1. Bump version to 3.26.0

    authored
Commits on Jul 1, 2011
  1. Bump version to 3.25.0

    authored
Commits on Jun 28, 2011
  1. Work with tinytds 0.4.5

    authored
    This removes the copying of the :host option to the :dataserver
    option when using the tinytds adapter.  That worked fine for previous
    versions of tiny_tds, but no longer works with 0.4.5.
    
    This breaks backwards compatibility with previous connection urls
    where the freetds.conf name was specified as the :host.  To use
    an entry in the freetds.conf file, you must now provide the
    :dataserver option.
    
    Unfortunately, tinytds 0.4.5 does not work with FreeTDS 0.91rc1, you
    have to use FreeTDS 0.91rc2 or an older version of FreeTDS such as
    0.82 (and older versions require the use of the freetds.conf file).
    
    Since 0.4.5 is now required, switch to using active? instead of
    closed? and dead? to detect disconnects.
Commits on Jun 27, 2011
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