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.\"
.IX Title "Attean::API::QueryPlanner 3pm"
.TH Attean::API::QueryPlanner 3pm "2022-10-06" "perl v5.34.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
Attean::API::IDPJoinPlanner \- Iterative dynamic programming query planning role
.SH "VERSION"
.IX Header "VERSION"
This document describes Attean::API::IDPJoinPlanner version 0.033
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 2
\&  extends \*(AqAttean::QueryPlanner\*(Aq;
\&  with \*(AqAttean::API::IDPJoinPlanner\*(Aq;
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
The Attean::API::IDPJoinPlanner role provides a query planner the
\&\f(CW\*(C`joins_for_plan_alternatives\*(C'\fR method, as well as the cost estimation
methods that consume the Attean::API::CostPlanner role.
.SH "ATTRIBUTES"
.IX Header "ATTRIBUTES"
.SH "METHODS"
.IX Header "METHODS"
.SH "BUGS"
.IX Header "BUGS"
Please report any bugs or feature requests to through the GitHub web interface
at <https://github.com/kasei/attean/issues>.
.SH "REFERENCES"
.IX Header "REFERENCES"
The seminal reference for Iterative Dynamic Programming is \*(L"Iterative
dynamic programming: a new class of query optimization algorithms\*(R" by
D. Kossmann and K. Stocker, \s-1ACM\s0 Transactions on Database Systems
(2000).
.PP
The heuristics to order triple patterns in this module is
influenced by The ICS-FORTH Heuristics-based \s-1SPARQL\s0 Planner
(\s-1HSP\s0) <http://www.ics.forth.gr/isl/index_main.php?l=e&c=645>.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
.SH "AUTHOR"
.IX Header "AUTHOR"
Gregory Todd Williams  \f(CW\*(C`<gwilliams@cpan.org>\*(C'\fR
.SH "COPYRIGHT"
.IX Header "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.