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odoo_source/addons/lunch/security
Alvaro FuentesandChristophe Simonis c18b9f44be [IMP] *: optimize multi-company rule
When we use the `|` (or) version of this rule the ORM generates two
sub-queries when checking the company. This causes sub-optimal and in
some cases really bad planning for the queries and thus PG takes hours
to complete them.

Example (formatted):
```sql
    SELECT "mrp_routing_workcenter".id
      FROM "mrp_routing_workcenter"
 LEFT JOIN "mrp_bom" AS "mrp_routing_workcenter__bom_id"
        ON "mrp_routing_workcenter"."bom_id" = "mrp_routing_workcenter__bom_id"."id"
     WHERE "mrp_routing_workcenter"."workcenter_id" in (1)
       AND (  ("mrp_routing_workcenter"."bom_id" in (
                    SELECT "mrp_bom".id
                      FROM "mrp_bom"
                     WHERE ("mrp_bom"."company_id" in (1))
                   )
              )
           OR ("mrp_routing_workcenter"."bom_id" in (
                    SELECT "mrp_bom".id
                      FROM "mrp_bom"
                     WHERE "mrp_bom"."company_id" IS NULL
                   )
              )
           )
  ORDER BY "mrp_routing_workcenter__bom_id"."sequence",
           "mrp_routing_workcenter__bom_id"."id",
           "mrp_routing_workcenter"."sequence",
           "mrp_routing_workcenter"."id"
```

If we use the single term version the generated query has only one
sub-query:
```sql
    SELECT "mrp_routing_workcenter".id
      FROM "mrp_routing_workcenter"
 LEFT JOIN "mrp_bom" AS "mrp_routing_workcenter__bom_id"
        ON "mrp_routing_workcenter"."bom_id" = "mrp_routing_workcenter__bom_id"."id"
     WHERE "mrp_routing_workcenter"."workcenter_id" in (1)
       AND (  ("mrp_routing_workcenter"."bom_id" in (
                    SELECT "mrp_bom".id
                      FROM "mrp_bom"
                     WHERE (("mrp_bom"."company_id" in (1))
                        OR  ("mrp_bom"."company_id" IS NULL))
                   )
              )
           )
  ORDER BY "mrp_routing_workcenter__bom_id"."sequence",
           "mrp_routing_workcenter__bom_id"."id",
           "mrp_routing_workcenter"."sequence",
           "mrp_routing_workcenter"."id"
```
In this version PG is able to produce a better query plan resulting in
better execution times.

Also, the `company_id` field is required on some models, so the "= False" comparison is useless.

closes odoo/odoo#159123

X-original-commit: 1b5c41f36801fb886ec591f29dba42787d698526
Related: odoo/enterprise#59378
Signed-off-by: Christophe Simonis (chs) <chs@odoo.com>
Co-authored-by: Christophe Simonis <chs@odoo.com>
2024-03-25 17:50:06 +00:00
..