How to Gather Optimizer Statistics for an ON COMMIT DELETE ROWS Temporary Table
(Doc ID 403587.1)
Last updated on NOVEMBER 26, 2019
Applies to:Oracle Database - Enterprise Edition - Version 18.104.22.168 to 10.2.0.1 [Release 9.0.1 to 10.2]
Information in this document applies to any platform.
This problem can occur on any platform.
Note: Gathering table stats for a GLOBAL TEMPORARY TABLE is possible from 11.2 onwards.
Optimizer statistics cannot be gathered for ON COMMIT DELETE ROWS global temporary tables.
Such statistics, reflecting a representative volume of data from such a table, may often be needed in order to get good execution plans. The Optimizer Dynamic Sampling feature may not always suffice for this requirement.
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