#30203: Union with group by don't generate correct Subquery
-------------------------------------+-------------------------------------
Reporter: Nikolas | Owner: nobody
Type: Bug | Status: new
Component: Database | Version: 1.11
layer (models, ORM) |
Severity: Normal | Keywords: union, group by
Triage Stage: | Has patch: 0
Unreviewed |
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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if dont use union - all fine, generated SQL:
{{{
SELECT "service_transaction"."phone_number_id",
"rate"."service_id",
COUNT("rate"."service_id") AS "rate__service_id__count"
FROM "service_transaction"
INNER JOIN "phone_number" ON ("service_transaction"."phone_number_id" =
"phone_number"."id")
INNER JOIN "rate" ON ("service_transaction"."rate_id" = "rate"."id")
WHERE ("phone_number"."deactivated" IS NULL
AND ("service_transaction"."sms_last_id" IS NOT NULL
OR "service_transaction"."deactivated" >
(STATEMENT_TIMESTAMP()))
AND "rate"."country_id" = 2)
GROUP BY "service_transaction"."phone_number_id",
"rate"."service_id"
}}}
but if before use union get:
{{{
(SELECT "service_transaction"."phone_number_id",
"rate"."service_id"
FROM "service_transaction"
INNER JOIN "phone_number" ON ("service_transaction"."phone_number_id" =
"phone_number"."id")
INNER JOIN "rate" ON ("service_transaction"."rate_id" = "rate"."id")
WHERE ("phone_number"."deactivated" IS NULL
AND ("service_transaction"."sms_last_id" IS NOT NULL
OR "service_transaction"."deactivated" >
(STATEMENT_TIMESTAMP()))
AND "rate"."country_id" = 2))
UNION
(SELECT "banned_phone_number"."phone_number_id",
"banned_phone_number"."service_id"
FROM "banned_phone_number"
INNER JOIN "phone_number" ON ("banned_phone_number"."phone_number_id" =
"phone_number"."id")
WHERE ("phone_number"."deactivated" IS NULL
AND "banned_phone_number"."user_id" = 4))
}}}
my code very simple:
{{{
active_service_transaction =
active_service_transaction.union(activate_banned_phone_numbers) # all fine
if dont use union
.
.
.
active_service_transaction =
active_service_transaction.annotate(Count('rate__service_id'))
}}}
i think this is bug, if not bug must generate exception
th, sorry my poor English
--
Ticket URL: <https://code.djangoproject.com/ticket/30203>
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