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ORA-00600 [qerghFetch:inc] Running a Union Query (Doc ID 1615779.1)

Last updated on FEBRUARY 25, 2019

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 11.2 to 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.


SELECT statement with UNION and GROUP BY clause fails with ORA-600 [qerghFetch:inc]


Stack trace will be similar to following:

$cold_qerghFetch <- 6560 <- rwsfcd <- qeruaFetch <- qervwFetch <- qerjoFetch <- qercoFetch <- qersoProcessULS <- qersoFetch <- qervwFetch <- qercoFetch <- opifch2 <- kpoal8 <- opiodr <- ttcpip <- opitsk <- opiino <- opiodr <- opidrv <- sou2o <- opimai_real <- ssthrdmain <- main <- main_opd_entry


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