NAME

Genezzo::Row::RSJoinA - Row Source Join [A]

SYNOPSIS

use Genezzo::Row::RSJoinA;

# see Genezzo::GenDBI usage

DESCRIPTION

RSJoinA is a hierarchical pushhash (see Genezzo::PushHash::hph) class which performs a cartesian product of multiple rowsources.

ARGUMENTS

row source list (Required) - list of row sources to join
dict (Required) - dictionary object from Genezzo::Dict
dbh (Required) - database handle object from Genezzo::GenDBI

FUNCTIONS

RSJoinA supports all standard READ-ONLY hph hierarchical pushhash operations, like FETCH, FIRSTKEY, NEXTKEY, HCOUNT

EXPORT

LIMITATIONS

HPUSH, STORE, EXISTS, DELETE, CLEAR are probably broken...

TODO

build nested-loop, sort-merge, hash join

AUTHOR

Jeffrey I. Cohen, jcohen@genezzo.com

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

Address bug reports and comments to: jcohen@genezzo.com

For more information, please visit the Genezzo homepage at <http://www.genezzo.com>