ChangeLog for RQL
=================
2010-06-04 -- 0.26.1
* normalize NOT() to NOT EXISTS() when it makes sense
* fix grammar bug in HAVING clause: should all arbitrary expression and fix to deal with IN() hack
2010-04-20 -- 0.26.0
* setuptools support
* variable and column alias stinfo optimization
* analyzer return key used in args to unambiguify solutions
* rewrite_shared_optional refactoring
2010-03-16 -- 0.25.0
* depends on logilab-database
* raise BadRQLQuery when using optional on attribute relation
2010-02-10 -- 0.24.0
* update to yams 0.27 api
* fully dropped mx support
* various bugs fixed
2009-08-26 -- 0.23.0
* Union.locate_subquery now return a 2-uple (select subquery, column index in the subquery)
* new subquery_selection_index method on Union
* new root_selection_index method on VariableRef
2009-08-18 -- 0.22.2
* fixes to compile with different versions of gecode
2009-05-04 -- 0.22.0
* consider subqueries in variables graph
* py datetime support (must be explicitly activated until we drop mx.DateTime support)
* implements main_relation on ColumnAlias
2009-02-17 -- 0.21.0
* new type solver based on gecode
2008-10-17 -- 0.20.2
* new remove_subquery method on Select node
* remove_node accepts a new 'undefine' argument (default to False for bw compat)
telling if it should undefine no more referenced variables
2008-10-09 -- 0.20.1
* introduce "sqlscope" where NOT node is considered as a new scope
* rql checker raise BadRQLQuery for inconsistent orderby on distinct query
* correctly restore .parent when undoing RemoveNodeOperation
2008-09-24 -- 0.20.0
* is_instance_of support
* raise BadRQLQuery on queries like 'Any X WHERE X name Toto, P is Person'
* "NOT X identity Y" is now allowed
* do not add relation constraint on variables used in math expression
2008-08-29 -- 0.19.2
* fix undoing of add_relation and variable name allocation on query using
some subquery
* add missing selected_index() method on ColumnAlias
* set_possible_types() propagate to sub-queries since some additional
type constraints may be set in the outer query
* new type resolver ignore type restrictions, used by erudi during syntax
tree annotation
2008-08-07 -- 0.19.1
* should not simplify variables used in the GROUPBY clause when there is a
HAVING clause
* implements set_limit / set_offset on UNION nodes
2008-07-22 -- 0.19.0
* grammar changes: LIMIT / OFFSET should now be before the WHERE clause,
though bw compat will be kept for some time
* when simplifying constant uid nodes, don't remove them from group terms if
there is a HAVING clause
* new get_variable_variables on Union and Select nodes
2008-07-04 -- 0.18.3
* fix add_type_restriction to support frozenset and dict of types
2008-06-06 -- 0.18.2
* remove group/sort undoing fix
* set stinfo['possibletypes'] and update solution dictionnary for variable
inserted for new identity relation
* error resilient unregister_reference
* init variable annotation information on annotation, not variable
instanciation
2008-05-12 -- 0.18.1
* bugfix in remove_groups and remove_sort_terms
2008-05-08 -- 0.18.0
* UNION support
* HAVING support
* GROUPBY and ORDERBY moved *before* WHERE
* code cleanup, fixes and refactorings
2008-03-26 -- 0.17.2
* fix a bug in get_solutions,possible_types should be reseted first
* some documentation update
2008-03-12 -- 0.17.1
* method to add group variable with undoing support
* fix remove_sort_term
2008-02-27 -- 0.17.0
* use bool values for Boolean constants, None for NULL constant
* allow one char relation names
* allow multiple capitalized characters in entity types
2008-02-15 -- 0.16.0
* understand "C is NULL"
* allow multiple annotation
* fix stinfo['possibletypes']
2008-01-25 -- 0.15.4
* better add_type_restriction methods
* nicer error message in stcheck
* fix some buggy assertion in editextensions
2008-01-17 -- 0.15.3
* only put valuable relations in uidrels
* always put an operator node as rhs children of a Relation
* fix rewrite-shared_optional to correctly update stinfo
* new index_path / go_to_index_path methodes
2008-01-14 -- 0.15.2
* fix nested aggregat checking
* fix a bug in Relation.__repr__
* fix should_register_op which was expected to be a property
* support for undoing limit/offset change
2008-01-07 -- 0.15.1
* ensure some attributes are encoded strings
2007-12-11 -- 0.15.0
* cleanup, optimizations, some api changes
2007-11-26 -- 0.14.0
* Node.get_type take kwargs as second argument to better guess the type of
constants
* new attrvars stinfo
* new scope attribute on other nodes than Variable
* thread safety for the RQLHleper
2007-10-29 -- 0.13.0
* use lgc.adbh module
2007-10-23 -- 0.12.0
* add ILIKE comparison operator, '~=' operator is now aliased to ILIKE
instead of LIKE
* variable scope handling
2007-06-04 -- 0.11.3
* as_string w/ kwargs fix
* get_description fix on Variable, enhancement on Function by delegating
to the function's description
2007-05-23 -- 0.11.2
* fix as_string bug for NOW/TODAY constants which may cause coercion bugs
* as_string with now encoding specified will (hum, probably) return an
unicode string
2007-05-14 -- 0.11.1
* Sortterm.var -> Sortterm.term
* fix function name normalization
* make remove_node available without having to import editextensions
2007-04-05 -- 0.11.0
* EXISTS support
* proper get_type/get_description api, try to coerce math expression
in get_type
* some edition api cleanup
2007-03-08 -- 0.10.2
* fix #17887: analyzis error on "Any U WHERE NOT U owned_by U"
* fix #17907: annotation foire potentiellement sur arbre simplifi�
2007-02-09 -- 0.10.1
* fix rewriting bug: variable used in an optional relation can't be
rewritten
* new 'main_relation' method on variable
2007-02-02 -- 0.10.0
* allow variable as rhs of 'is' relation
* can use Any as type specification in DELETE queries (eg DELETE Any X)
* fix type inference when non '=' operator on uid relation
2006-11-15 -- 0.9.1
* fix Variable.selected_index()
* do not raise bad rql query on non selected sorted variable in
distinct query since this is supported by erudi's rql engine
2006-11-14 -- 0.9.0
* proper full/right/left outer join support
* removed a buggy assertion in stcheck on aggregat function
* new .selected_index method on Variable
2006-10-31 -- 0.8.1
* fix SortTerm implementation
* fix a NameError in set_offset/set_limit and regenerate parser to
use those methods
* stinfo['references'] is now a list since order is important
2006-10-27 -- 0.8.0
* fix grammar for negative integer :/
* simplify generated subtree for IN(onechildren)
* stcheck is now doing full annotation and additional constant variable
rewriting
* do not include yapps anymore
* removed broken C parser
* fixes to follow yams api changes
* editextensions fixes
2006-10-08 -- 0.7.2
* add missing as_string method on groups and sorts
* detect that queries like "Any C where C suivi_par P, P eid %(x)s ORDERBY N"
are incorrect (N isn't defined)
2006-09-22 -- 0.7.1
* fix as_string bugs
* fix a bug in stcheck to detect bad queries when aggregat/transform
functions are used
2006-09-05 -- 0.7.0
* new method on variable to get the name of relations where it's used
* new function into utils to register known registered procedures
* fixed grammar to allow "_" into function name
2006-06-08 -- 0.6.0
* new add method on statement
2006-05-21 -- 0.5.2
* fixed syntax tree copy, just call stmt.copy() to have a
full deep copy
* support for substitute on uid relation in the type analyzer
(this implies to give the kwargs dictionary of the query to the
analyzer)
2006-03-28 -- 0.4.2
* fixed a bug when a variable is related to itself
* allow numbers in variable and entity types
* C parser (disabled by default)
2006-02-10 -- 0.4.1
* fix set_distinct so that previous distinct attribute is correctly undoed
if necessary
* remove a false assertion in remove_selected
* remove unnecessary OR from the tree when used with a symetric relation
2006-01-23 -- 0.4.0
* fix Constant's type when NOW is used
* allow function in ORDERBY expression
* refactor some edit extensions
2005-07-26 -- 0.3.1
* close #9629, "Any E WHERE P is Project, P eid E" foire
* fix bug with IN() used in update queries
2005-07-06 -- 0.3.0
* reintroduce analyze restriction from special relations, which may speed
up analyzing
2005-06-16 -- 0.2.0
* minor evolutions
* added Cpp parser module (not yet activated)
* minor performance improvement
2004-09-23 -- 0.1.2
* minor evolutions
* bugfixes with constant management (TODAY, etc.)
2004-06-10 -- 0.1.1
* minor evolutions