ORA-00600: Internal Error Code, Arguments: [qkaconPreUA:FJswrwo], , , , , , , , 
Last updated on JUNE 30, 2017
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11 and later
Information in this document applies to any platform.
Query fails with the following error.
ORA-00600: internal error code, arguments: [qkaconPreUA:FJswrwo], , , , , , , , , , , 
qkaconPreUA <- qkaqkn <- qkadrv <- opitca <- kksFullTypeCheck
<- rpiswu2 <- kksLoadChild <- kxsGetRuntimeLock <- kksfbc <- kkspsc0
Upgraded to 18.104.22.168 with the following parameter set.
_connect_by_use_union_all = old_plan_mode
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