text type also parses :<string> into bind param objects
bind parameters convert their incoming type using engine.type_descriptor() methods
types.adapt_type() adjusted to not do extra work with incoming types, since the bind
param change will cause it to be called a lot more
added tests to new text type stuff, bind params, fixed some type tests
added basic docs for using text with binde params
added append_item() method to column to work similarly to table.append_item(), used to
append foreign keys to the column (required in mysql)
appending new foreign keys will properly replace the old one, so explicitly appending
foreign keys to tables will replace those loaded via table reflection (instead of doubling them up)
testfunction has a more complete test (needs an assert tho);
added new labels, synonymous with column key, to "select" statements that are subqueries with use_labels=False, since SQLite wants them -
this also impacts the names of the columns attached to the select object in the case that the key and name dont match, since
it is now the key, not the name;
aliases generate random names if name is None (need some way to make them more predictable to help plan caching);
select statements have a rowid column of None, since there isnt really a "rowid"...at least cant figure out what it would be yet;
mapper creates an alias if given a select to map against, since Postgres wants it;
mapper checks if it has pks for a given table before saving/deleting, skips it otherwise;
mapper will not try to order by rowid if table doesnt have a rowid (since select statements dont have rowids...)
support for types to be propigated into boolean expressions;
new label() function/method to make any column/literal/function/bind param
into a "foo AS bar" clause, better support in ansisql for this concept;
trying to get column list on a select() object to be Column and ColumnClause
objects equally, working on mappers that map to those select() objects
mapper/relations are stricter about class attributes and primary mapper - is_primary flag
on relations fixed (wasnt working before). new primary mappers clear off old class attributes,
secondary mappers insure that their property was set up by the primary; otherwise secondary
mappers can add behavior to properties that are unmanaged by the primary mapper
added "group" option to deferred loaders so a group of properties can be loaded at once
mapper adds the "oid" column to the select list if "distinct" is set to true and its
using the default "order by oid" ordering (mysql benefits from ansisql fix to only print out unique
columns in the select list since its oid is the same as the pk column)
fixed unittests to comply with stricter primary mapper rules
testbase gets "assert_sql_count" method, moves execution wrapping to pre_exec to accomodate engine change
move _get_colparams from Insert/Update to ansisql since it applies to compilation
ansisql also insures that select list for columns is unique, helps the mapper with the "distinct" keyword
docstrings/cleanup
added 'no_sort' property to mapper _compile method to disable all ordering
mapper _compile will not use its internal order_by if the given statement has an orderby
lazyloader order_by used standalone when loading via mapper
Mike Bayer