EVOLUTION-MANAGER

Edit File: 0_3.txt

======================== Whoosh 0.3 release notes ======================== * Major improvements to reading/writing of postings and query performance. * Changed default post limit (run size) from 4 MB to 32 MB. * Finished migrating backend-specific code into ``whoosh.filedb`` package. * Moved formats from whoosh.fields module into new whoosh.formats module. * DocReader and TermReader classes combined into new IndexReader interface. You can get an IndexReader implementation by calling Index.reader(). Searcher is now a wrapper around an IndexReader. * Range query object changed, with new signature and new syntax in the default query parser. Now you can use ``[start TO end]`` in the query parser for an inclusive range, and ``{start TO end}`` for an exclusive range. You can also mix the delimiters, for example ``[start TO end}`` for a range with an inclusive start but exclusive end term. * Added experimental DATETIME field type lets you pass a ``datetime.datetime`` object as a field value to ``add_document``:: from whoosh.fields import Schema, ID, DATETIME from whoosh.filedb.filestore import RamStorage from datetime import datetime schema = Schema(id=ID, date=DATETIME) storage = RamStorage() ix = storage.create_index(schema) w = ix.writer() w.add_document(id=u"A", date=datetime.now()) w.close() Internally, the DATETIME field indexes the datetime object as text using the format (4 digit year + 2 digit month + 2 digit day + 'T' + 2 digit hour + 2 digit minute + 2 digit second + 6 digit microsecond), for example ``20090817T160203109000``. * The default query parser now lets you use quoted strings in prefix and range queries, e.g. ``["2009-05" TO "2009-12"]``, ``"alfa/bravo"*``, making it easier to work with terms containing special characters. * ``DocReader.vector_as(docnum, fieldid, astype)`` is now ``IndexReader.vector_as(astype, docnum, fieldid)`` (i.e. the astype argument has moved from the last to the first argument), e.g. ``v = ixreader.vector_as("frequency", 102, "content")``. * Added whoosh.support.charset for translating Sphinx charset table files. * Added whoosh.analysis.CharsetTokenizer and CharsetFilter to enable case and accent folding. * Added experimental ``whoosh.ramdb`` in-memory backend. * Added experimental ``whoosh.query.FuzzyTerm`` query type. * Added ``whoosh.lang.wordnet`` module containing ``Thesaurus`` object for using WordNet synonym database.