oracular (3) AtteanX::API::JoinRotatingPlanner.3pm.gz

Provided by: libattean-perl_0.034-1_all bug

NAME
       AtteanX::API::JoinRotatingPlanner - Query planning role to produce alternative join plans


VERSION
       This document describes AtteanX::API::JoinRotatingPlanner version 0.034


DESCRIPTION
       The AtteanX::API::JoinRotatingPlanner role, when used with Attean::QueryPlanner, produces alternatives
       for join query plans. Specifically, joins of the form (A⋈B)⋈C are rotated to A⋈(B⋈C), with the ability to
       coalesce B⋈C (e.g. for adjacent BGPs).


REQUIRED METHODS
       allow_join_rotation( $join_plan )
           Returns true if join rotation should be attempted on the given join plan.

       coalesce_rotated_join( $join_plan )
           Given a Attean::API::Plan::Join plan $join_plan, returns a list of equivalent plans. This is useful
           when the join can be reduced to a more fundamental plan type, such as merging two adjacent BGP plans
           into a single plan.


BUGS
       Please report any bugs or feature requests to through the GitHub web interface at
       <https://github.com/kasei/attean/issues>.


SEE ALSO
AUTHOR
       Gregory Todd Williams  "<gwilliams@cpan.org>"


       Copyright (c) 2014--2022 Gregory Todd Williams.  This program is free software; you can redistribute it
       and/or modify it under the same terms as Perl itself.