RE: ** optimizer_dynamic_sampling
- From: "Allen, Brandon" <Brandon.Allen@xxxxxxxxxxx>
- To: "ajoshi977@xxxxxxxxx" <ajoshi977@xxxxxxxxx>, "oracle-l@xxxxxxxxxxxxx" <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 26 Jun 2009 14:28:20 -0700
The sampling levels are described here:
http://download.oracle.com/docs/cd/B19306_01/server.102/b14211/stats.htm#sthref1118
I haven't had any problems with auto_sample_size in 10g, but I've heard rumors
that it's much better/faster in 11g. Another big change to keep in mind is
that in 10g histograms will be gathered by default.
Regards,
Brandon
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