3.1.2 CELL_OFFLOAD_PLAN_DISPLAY
The database parameter CELL_OFFLOAD_PLAN_DISPLAY determines whether the SQL EXPLAIN PLAN command displays the predicates that can be evaluated by Oracle Exadata System Software as STORAGE predicates for a given SQL command.
The values for the CELL_OFFLOAD_PLAN_DISPLAY parameter are AUTO, ALWAYS, or NEVER. The default value is AUTO.
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AUTOinstructs the SQLEXPLAIN PLANcommand to display the predicates that can be evaluated asSTORAGEonly if a cell is present and if a table is on the cell. -
ALWAYSproduces changes to the SQLEXPLAIN PLANcommand based on Oracle Exadata System Software, whether or not Oracle Exadata System Software is present or the table is on the cell. You can use this setting to see what can be offloaded to Oracle Exadata Storage Server before migrating to Oracle Exadata Storage Server. -
NEVERproduces no changes to the SQLEXPLAIN PLANcommand for Oracle Exadata System Software.
You can set the CELL_OFFLOAD_PLAN_DISPLAY parameter dynamically with the SQL ALTER SYSTEM or ALTER SESSION commands. For example:
SQL> ALTER SESSION SET cell_offload_plan_display = ALWAYS;
Related Topics
Parent topic: Administering SQL Processing Offload