ORA-00600: Internal Error Code, Arguments: [qkaconPreUA:FJswrwo], [9], [], [], [], [], [], [], []

(Doc ID 1628946.1)

Last updated on JUNE 30, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.3 and later
Information in this document applies to any platform.

Symptoms

Query fails with the following error.
ORA-00600: internal error code, arguments: [qkaconPreUA:FJswrwo], [9], [], [], [], [], [], [], [], [], [], []

Call stack:

qkaconPreUA <- qkaqkn <- qkadrv <- opitca <- kksFullTypeCheck
<- rpiswu2 <- kksLoadChild <- kxsGetRuntimeLock <- kksfbc <- kkspsc0

Changes

Upgraded to 11.2.0.3 with the following parameter set.
_connect_by_use_union_all = old_plan_mode

Cause

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