ora-0600 [kkpapDIGetNum2]

Query on Partitioned Table Results in ORA-00600 [kkpapDIGetNum2] (Doc ID 1573905.1)

workaround: 

To work around the problem:

either set "_and_pruning_enabled" = false

or

optimizer_features_enable='10.2.0.5'

You can do this e.g. at session level or via hint to the affected SQL.

e.g.

alter session|system set "_and_pruning_enabled" = false;

or

SELECT /*+ OPT_PARAM('_and_pruning_enabled' 'false') */ ...

To fix the problem upgrade to 12.1 or install patch 10097969 if available.