#27632: Oracle backend fails to execute a query with an aggregation that
contains
an expression in the GROUP BY.
-------------------------------------+-------------------------------------
Reporter: Josh Smeaton | Owner: felixxm
Type: Bug | Status: assigned
Component: Database layer | Version: master
(models, ORM) |
Severity: Normal | Resolution:
Keywords: oracle | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Changes (by felixxm):
* owner: nobody => felixxm
* status: new => assigned
Comment:
IMO we can avoid this error (`"ORA-00979: not a GROUP BY expression"`) by
omitting adding `Value` expression (bind parameters) in
`CombinedExpression` to group by clause. Query without it i.e.
{{{#!sql
SELECT
("AGGREGATION_REGRESS_BOOK"."PRICE" * :arg0) AS "DISCOUNT_PRICE",
SUM(("AGGREGATION_REGRESS_BOOK"."PRICE" * :arg1)) AS "SUM_DISCOUNT"
FROM "AGGREGATION_REGRESS_BOOK"
GROUP BY
"AGGREGATION_REGRESS_BOOK"."PRICE",
"AGGREGATION_REGRESS_BOOK"."NAME"
ORDER BY "AGGREGATION_REGRESS_BOOK"."NAME" ASC
}}}
will work this same as:
{{{#!sql
SELECT
("AGGREGATION_REGRESS_BOOK"."PRICE" * :arg0) AS "DISCOUNT_PRICE",
SUM(("AGGREGATION_REGRESS_BOOK"."PRICE" * :arg1)) AS "SUM_DISCOUNT"
FROM "AGGREGATION_REGRESS_BOOK"
GROUP BY
"AGGREGATION_REGRESS_BOOK"."PRICE" * :arg2,
"AGGREGATION_REGRESS_BOOK"."NAME"
ORDER BY "AGGREGATION_REGRESS_BOOK"."NAME" ASC
}}}.
--
Ticket URL: <https://code.djangoproject.com/ticket/27632#comment:2>
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