• Michael Hanselmann's avatar
    query: Add support for filters · fb0be379
    Michael Hanselmann authored
    This patch adds a “compiler” for query filters, converting them to a
    callable function used while preparing the query result. In addition, a
    hints call allows some analysis to be done on the query (e.g. referenced
    names), making data collection more efficient.
    The depth of filters is limited to avoid exceeding the runtime's maximum
    recursion depth.
    More operators and other improvements can be implemented using this
    base. Extensive unittests are provided.
    Signed-off-by: default avatarMichael Hanselmann <hansmi@google.com>
    Reviewed-by: default avatarRené Nussbaumer <rn@google.com>
query.py 53.8 KB