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`report_journal_ledger` is auto-vacuumed as any transient model, but has some ondelete="cascade" constraints that auto-remove subtables when a record is removed, doing this operation very slow when selecting these sub-records. Letting default ondelete="set null" would result in same performance bottleneck, as the select on sub-table is performed the same for setting "null" value on them. As a solution, and for avoiding a costly index operation, we delete by SQL sub-tables rows in advance. A bit of extra logic has been added for avoiding to remove that records if it's not the turn of vacuum the parent table.
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* Jordi Ballester <jordi.ballester@eficient.com>
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* Yannick Vaucher <yannick.vaucher@camptocamp.com>
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* Simone Orsi <simone.orsi@abstract.com>
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* Leonardo Pistone <leonardo.pistone@camptocamp.com>
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* Damien Crier <damien.crier@camptocamp.com>
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* Andrea Stirpe <a.stirpe@onestein.nl>
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* Thomas Rehn <thomas.rehn@initos.com>
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* Andrea Gallina <4everamd@gmail.com>
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* Robert Rottermann <robert@redcor.ch>
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* Ciro Urselli <c.urselli@apuliasoftware.it>
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* Francesco Apruzzese <opencode@e-ware.org>
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* Lorenzo Battistini <https://github.com/eLBati>
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* Julien Coux <julien.coux@camptocamp.com>
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* Akim Juillerat <akim.juillerat@camptocamp.com>
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* Alexis de Lattre <alexis@via.ecp.fr>
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* Mihai Fekete <feketemihai@gmail.com>
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* Miquel Ra??ch <miquel.raich@eficent.com>
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* `Tecnativa <https://www.tecnativa.com>`__:
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* Pedro M. Baeza
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* Sergio Teruel
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Much of the work in this module was done at a sprint in Sorrento, Italy in
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April 2016.
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