[DC-918] Causing ORA-01791 when try to sort on relation field and use limit in query to Oracle DB

Sat, 6 Nov 2010 08:48:17 +0000

Schema in yml format
in Symfony it looks more simple, but i'm going to show relation in detail

PrType:
  columns:   
    name:                   { type: string(255), notnull: true }                          

PrTypeTranslation:
  columns:   
    id:                     { type: integer, notnull: true }
    name:                   { type: string(255), notnull: true }
    lang:                   { type: string(255), notnull: true }
  relations:
    PrType:                 { onDelete: CASCADE, local: id_id, foreign: id, foreignAlias: Translation }

When i try to execute this code:

   $q = Doctrine_Query::create()
            ->from('PrType tp')
            ->leftJoin('tp.Translation t WITH t.lang = ?', 'ru')
            ->orderBy('t.name')
            ->limit(10);

doctrine executes next statement:

SELECT "p"."id", "p2"."name" AS "p2__name", "p2"."lang" AS "p2__lang"
FROM "pr_type" "p"
LEFT JOIN "pr_type_translation" "p2" ON "p"."id" = "p2"."id" AND ("p2"."lang" = :oci_b_var_1)
WHERE "p"."id" IN (
              SELECT a."id" FROM ( 
                          SELECT DISTINCT "p3"."id"
                          FROM "pr_type" "p3"
                          INNER JOIN "pr_type_translation" "p4" ON "p3"."id" = "p4"."id" AND ("p4"."lang" = 'ru') 
                          ORDER BY "p4"."name" ) a 
                          WHERE ROWNUM <= 10) 
ORDER BY "p2"."name"

This sql code produces next error

ORA-01791: not a SELECTed expression

Error occures, because (from ORACODE)

There is an incorrect ORDER BY item. The query is a SELECT DISTINCT query with an ORDER BY clause. In this context, all ORDER BY items must be constants, SELECT list expressions, or expressions whose operands are constants or SELECT list expressions

Doctrine Project

[DC-918] Causing ORA-01791 when try to sort on relation field and use limit in query to Oracle DB