ORA-7445 [kdzdcol_agg_cols_imc_generic()+24] Is Raised when Querying INMEMORY MEMCOMPRESS Table (Doc ID 2080334.1)

Last updated on DECEMBER 24, 2015

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 to 12.1.0.2 [Release 12.1]
Information in this document applies to any platform.

Symptoms

When querying a table with INMEMORY MEMCOMPRESS attribute, an ORA-3113 error may be returned to the session, while ORA-7445 error is reported in the alert.log.

User session may show:

SELECT sum ( col1) FROM tab1 WHERE col2 = '201510'
*
ERROR at line 1:
ORA-03113: end-of-file on communication channel
Process ID: 8957
Session ID: 11 Serial number: 49894

 
The error in the alert log is like:

ORA-07445: exception encountered: core dump [kdzdcol_agg_cols_imc_generic()+24] [SIGSEGV] [ADDR:0xFFFFFFFF7FDB7C08] [PC:0x10C865838] [Stack Overflow] []

 
The call stack in the trace file shows functions like:

... kdzdcol_agg_cols_imc_generic kdzdcol_agg kdpProjEval kdzt_acmp_fetch kdstf11101010001101km kdsttgr qertbFetch qergiFetch qergsFetch opifch2 kpoal8 opiodr ...

 

Changes

Meeting all of the following conditions may trigger this error.

 

Cause

Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms