NAME

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

VERSION

       This document describes AtteanX::API::JoinRotatingPlanner version 0.035

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

       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.

perl v5.40.0                                       2025-01-26             AtteanX::API::JoinRotatingPlanner(3pm)