We can't delete document since we've upgrade nuxeo 5.4.2 to 5.5 (DataBase Oracle 10G).
It doesn't work anymore with Nuxeo GUI, API Java or REST API.
It seems that this request (operated bi Nuxeo) is very slow :
SELECT "HIERARCHY"."ID", "HIERARCHY"."PARENTID", "HIERARCHY"."PRIMARYTYPE", "HIERARCHY"."ISPROPERTY", "PROXIES"."VERSIONABLEID", "PROXIES"."TARGETID" FROM "HIERARCHY" LEFT JOIN "PROXIES" ON "HIERARCHY"."ID" = "PROXIES"."ID" WHERE EXISTS(SELECT :"SYS_B_0" FROM ancestors WHERE hierarchy_id = "HIERARCHY"."ID" AND :1 MEMBER OF ancestors)