complex view merging in 10.2.0.4
I have patched my 10.2.0.1 database to 10.2.0.4 database. after patching the server, one of my query start giving "ORA-00979: not a GROUP BY expression" error.
The same query however worked with index hint /*+ opt_param('_complex_view_merging', 'false') */
I want to know Is this the standard solution or should i install some other patch/update. Please suggest.