d69700dc3e
== 2.2.1 / 2011-09-15
* Enhancements
* Added UpdateManager#key to access the key value
* Added SelectManager#projections= to override any existing projections
* Added SelectManager#source to get the source of the last select core in the AST
== 2.2.0 / 2011-08-09
* Bug Fixes
* The database connection caches visitors for generating SQL.
* FALSE and TRUE nodes can be constructed.
* Fixed ORDER BY / LIMIT clauses for UPDATE statements in Oracle.
== 2.1.4 / 2011-07-25
* Bug Fixes
* Fix depth-first traversal to understand ascending / descending nodes.
* Parentheis are suppressed with nested unions in MySQL. Thanks jhtwong!
== 2.1.3 / 2011-06-27
* Bug Fixues
* Fixed broken gem build.
== 2.1.2 / 2011-06-27
* Bug Fixes
* Visitors can define their own cache strategey so caches are not shared.
Fixes #57
* Informix support fixed. Thanks Khronos.
* Ordering nodes broken to subclasses. Thanks Ernie Miller!
* Reversal supported in ordering nodes. Thanks Ernie Miller!
== 2.1.1 / 2011/05/14
* Bug fixes
* Fixed thread safety bug in ToSql visitor. Thanks Damon McCormick and
Cameron Walters!
== 2.1.0 / 2011/04/30
* Enhancements
* AST is now Enumerable
* AND nodes are now n-ary nodes
* SQL Literals may be used as Attribute names
* Added Arel::Nodes::NamedFunction for representing generic SQL functions
* Add Arel::SelectManager#limit=
* Add Arel::SelectManager#offset
* Add Arel::SelectManager#offset=
* Added Arel::SelectManager#create_insert for building an insert manager.
* SQL Literals are allowed for values in INSERT statements.
* Math operations have been added to attributes, thanks to
Vladimir Meremyanin.
* Bug fixes
* MSSQL adds TOP to sub selects
* Assigning nil to take() removes LIMIT from statement.
* Assigning nil to offset() removes OFFSET from statement.
* TableAlias leg ordering fixed
* Deprecations
* Calls to `insert` are deprecated. Please use `compile_insert` then call
`to_sql` on the resulting object and execute that SQL.
* Calls to `update` are deprecated. Please use `compile_update` then call
`to_sql` on the resulting object and execute that SQL.
* Calls to `delete` are deprecated. Please use `compile_delete` then call
`to_sql` on the resulting object and execute that SQL.
* Arel::Table#joins is deprecated and will be removed in 3.0.0 with no
replacement.
* Arel::Table#columns is deprecated and will be removed in 3.0.0 with no
replacement.
* Arel::Table.table_cache is deprecated and will be removed in 3.0.0 with no
replacement.
* Arel::Nodes::And.new takes a single list instead of left and right.
* Arel::Table#primary_key is deprecated and will be removed in 3.0.0 with no
replacement.
* Arel::SelectManager#where_clauses is deprecated and will be removed in
3.0.0 with no replacement.
* Arel::SelectManager#wheres is deprecated and will be removed in
3.0.0 with no replacement.
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