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[FIX] Hugely degraded performance for the translation subquery inject… #2

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Merged
eantones merged 1 commit into from
Jan 10, 2020
Merged

[FIX] Hugely degraded performance for the translation subquery inject… #2

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7 changes: 4 additions & 3 deletions odoo/addons/base/ir/ir_translation.py
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Original file line number Diff line number Diff line change
Expand Up @@ -163,7 +163,8 @@ def finish(self):
cr.execute(""" INSERT INTO %s(name, lang, res_id, src, type, value, module, state, comments)
SELECT name, lang, res_id, src, type, value, module, state, comments
FROM %s AS ti
WHERE NOT EXISTS(SELECT 1 FROM ONLY %s AS irt WHERE %s);
WHERE NOT EXISTS(SELECT 1 FROM ONLY %s AS irt WHERE %s)
ON CONFLICT DO NOTHING;
""" % (self._model_table, self._table, self._model_table, find_expr),
(tuple(src_relevant_fields), tuple(src_relevant_fields)))

Expand Down Expand Up @@ -281,8 +282,8 @@ def _auto_init(self):
cr.execute('CREATE INDEX ir_translation_src_md5 ON ir_translation (md5(src))')
cr.commit()

if 'ir_translation_ltn' not in indexes:
cr.execute('CREATE INDEX ir_translation_ltn ON ir_translation (name, lang, type)')
if 'ir_translation_unique' not in indexes:
cr.execute('CREATE INDEX ir_translation_unique ON ir_translation (type, name, lang, res_id, md5(src))')
cr.commit()
return res

Expand Down
8 changes: 3 additions & 5 deletions odoo/models.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4113,16 +4113,14 @@ def _generate_translated_field(self, table_alias, field, query):
# The parenthesis surrounding the select are important, as this is a sub-select.
# The quotes surrounding `ir_translation` are important as well.
unique_translation_subselect = """
(SELECT DISTINCT ON (res_id) res_id, value
FROM "ir_translation"
WHERE name=%s AND lang=%s AND value!=%s
ORDER BY res_id, id DESC)
(SELECT res_id, value FROM "ir_translation"
WHERE name=%s AND lang=%s AND value!='')
"""
alias, alias_statement = query.add_join(
(table_alias, unique_translation_subselect, 'id', 'res_id', field),
implicit=False,
outer=True,
extra_params=["%s,%s" % (self._name, field), self.env.lang, ""],
extra_params=["%s,%s" % (self._name, field), self.env.lang],
)
return 'COALESCE("%s"."%s", "%s"."%s")' % (alias, 'value', table_alias, field)
else:
Expand Down