When you load metadata from a PowerCenter repository that is on an Oracle 11.1 database, you must disable extended statistics on the database. Otherwise, the S_M_ELMNT_ATTR_FIRST_LOAD session hangs during the load of the PowerCenter resource.
Extended statistics gathers object statistics and histograms on expressions or on a group of columns.
To disable extended statistics, set the Oracle system parameter
_optimizer_enable_extended_stats
to FALSE. Run the following command on the Oracle database:
Alter system set "_optimizer_enable_extended_stats" = FALSE scope=spfile/both/memory;
For more information about this Oracle parameter, see the Oracle documentation.