A newer version of this documentation is available. Click here to view the most up-to-date release of the Greenplum 4.x documentation.
Sets the planner's estimate of the cost of a nonsequentially fetched disk page. This is measured as a multiple of the cost of a sequential page fetch. A higher value makes it more likely a sequential scan will be used, a lower value makes it more likely an index scan will be used.
|Value Range||Default||Set Classifications|