Revision history for DBIx::Class
+0.08250 2013-04-29 22:00 (UTC)
+ * New Features / Changes
+ - Rewrite from scratch the result constructor codepath - many bugfixes
+ and performance improvements (the current codebase is now capable of
+ outperforming both DBIx::DataModel and Rose::DB::Object on some
+ workloads). Some notable benefits:
+ - Multiple has_many prefetch
+ - Partial prefetch - you now can select only columns you are
+ interested in, while preserving the collapse functionality
+ (collapse is now exposed as a first-class API attribute)
+ - Prefetch of resultsets with arbitrary order
+ (RT#54949, RT#74024, RT#74584)
+ - Prefetch no longer inserts right-side table order_by clauses
+ (massively helps the deficient MySQL optimizer)
+ - Prefetch with limit on right-side ordered resultsets now works
+ correctly (via aggregated grouping)
+ - No longer order the insides of a complex prefetch subquery,
+ unless required to satisfy a limit
+ - Stop erroneously considering order_by criteria from a join under
+ distinct => 1 (the distinct should apply to the main source only)
+ - Massively optimize codepath around ->cursor(), over 10x speedup
+ on some iterating workloads.
+ - Support standalone \[ $sql, $value ] in literal SQL with bind
+ specifications: \[ '? + ?', 42, 69 ] is now equivalent to
+ \[ '? + ?', [ {} => 42 ], [ {} => 69 ] ]
+ - Changing the result_class of a ResultSet in progress is now
+ explicitly forbidden. The behavior was undefined before, and
+ would result in wildly differing outcomes depending on $rs
+ attributes.
+ - Deprecate returning of prefetched 'filter' rels as part of
+ get_columns() and get_inflated_columns() data
+ - Invoking get_inflated_columns() no longer fires get_columns() but
+ instead retrieves data from individual non-inflatable columns via
+ get_column()
+ - Emit a warning on incorrect use of nullable columns within a
+ primary key
+ - Limited checks are performed on whether columns without declared
+ is_nullable => 1 metadata do in fact sometimes fetch NULLs from
+ the database (the check is currently very limited and is performed
+ only on resultset collapse when the alternative is rather worse)
+
* Fixes
- Fix _dbi_attrs_for_bind() being called befor DBI has been loaded
(regression in 0.08210)
- Fix update/delete operations on resultsets *joining* the updated
table failing on MySQL. Resolves oversights in the fixes for
RT#81378 and RT#81897
- - Stop erroneously considering order_by criteria from a join under
- distinct => 1 (the distinct should apply to the main source only)
- - Even more robust behavior of GenericSubQuery limit dialect
+ - Fix open cursors silently resetting when inherited across a fork
+ or a thread
+ - Properly support "MySQL-style" left-side group_by with prefetch
+ - Fix $grouped_rs->get_column($col)->func($func) producing incorrect
+ SQL (RT#81127)
- Stop Sybase ASE storage from generating invalid SQL in subselects
when a limit without offset is encountered
- - Correctly recognize root source unqualified columns when
- resolving right-side ordered limited prefetch
+ - Even more robust behavior of GenericSubQuery limit dialect
+ - Make sure deployment_statements() and cursor_class() are called on
+ a resolved storage subclass
+
+ * Misc
+ - Fix tests failing due to unspecified resultset retrieval order
+ (test suite now will pass with newest SQLite libs)
0.08210 2013-04-04 15:30 (UTC)
* New Features / Changes
- Fix incorrect warning/exception originator reported by carp*() and
throw_exception()
-0.08242-TRIAL (EXPERIMENTAL BETA RELEASE) 2013-03-10 14:44 (UTC)
- * New Features / Changes
- - Prefetch with limit on right-side ordered resultsets now works
- correctly (via aggregated grouping)
- - Changing the result_class of a ResultSet in progress is now
- explicitly forbidden. The behavior was undefined before, and
- would result in wildly differing outcomes depending on $rs
- attributes.
- - Scale back validation of the 'as' attribute - in the field
- there are legitimate-ish uses of a inflating into an apparently
- invalid relationship graph
- - Warn in case of iterative collapse being upgraded to an eager
- cursor slurp
- - No longer order the insides of a complex prefetch subquery,
- unless required to satisfy a limit
-
- * Fixes
- - Properly consider unselected order_by criteria during complex
- subqueried prefetch
- - Properly support "MySQL-style" left-side group_by with prefetch
- - Fix $grouped_rs->get_column($col)->func($func) producing incorrect
- SQL (RT#81127)
-
0.08209 2013-03-01 12:56 (UTC)
* New Features / Changes
- Debugging aid - warn on invalid result objects created by what
tarball contents (implicitly fixes RT#83084)
- Added strict and warnings tests for all lib and test files
-0.08241-TRIAL (EXPERIMENTAL BETA RELEASE) 2013-02-20 11:37 (UTC)
- * New Features / Changes
- - Revert to passing the original (pre-0.08240) arguments to
- inflate_result() and remove the warning about ResultClass
- inheritance.
- - Optimize the generated rowparsers even more - no user-visible
- changes.
- - Emit a warning on incorrect use of nullable columns within a
- primary key
-
-0.08240-TRIAL (EXPERIMENTAL BETA RELEASE) 2013-02-14 05:56 (UTC)
- * New Features / Changes
- - Rewrite from scratch the result constructor codepath - many bugfixes
- and performance improvements (the current codebase is now capable of
- outperforming both DBIx::DataModel and Rose::DB::Object on some
- workloads). Some notable benefits:
- - Multiple has_many prefetch
- - Partial prefetch - you now can select only columns you are
- interested in, while preserving the collapse functionality
- (collapse is now exposed as a first-class API attribute)
- - Prefetch of resultsets with arbitrary order
- (RT#54949, RT#74024, RT#74584)
- - Prefetch no longer inserts right-side table order_by clauses
- (massively helps the deficient MySQL optimizer)
- - Massively optimize codepath around ->cursor(), over 10x speedup
- on some iterating workloads.
-
- * Fixes
- - Fix open cursors silently resetting when inherited across a fork
- or a thread
- - Fix duplicated selected columns when calling 'count' when a same
- aggregate function is used more than once in a 'having' clause
- (RT#83305)
-
- * Misc
- - Fixup our distbuilding process to stop creating world-writable
- tarball contents (implicitly fixes RT#83084)
- - Added strict and warnings tests for all lib and test files
-
0.08206 2013-02-08
* Fixes
- Fix dbh_do() failing to properly reconnect (regression in 0.08205)
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