[massive store] Use a slave specific table for relation insertion in the massive store
* attribute a random id to the store
* add a column containing this id in the cwmassive_initialized table
* separate generic `master_init` which create the cwmassive_initialized table
from rtype specific initialization which must be done in each slave now
* delay removal of table indexes to `finish`
* get back relations from each table on `finish`
Similar work still has to be done for entities insertion - which will allow more
cleanup to the constraints handling which is still rough for now.
Related to #15538303
# copyright 2003-2012 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of CubicWeb.
#
# CubicWeb is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
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# details.
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# You should have received a copy of the GNU Lesser General Public License along
# with CubicWeb. If not, see <http://www.gnu.org/licenses/>.
from warnings import warn
from logilab.common.deprecation import class_moved
warn('[3.15] moved to logilab.common.registry', DeprecationWarning, stacklevel=2)
from logilab.common.registry import *
VRegistry = class_moved(RegistryStore, old_name='VRegistry', message='[3.15] VRegistry moved to logilab.common.registry as RegistryStore')