My Oracle Support Banner

XmlElement/XmlAgg/XmlForest Query Takes Longer in 10.2.0 Than In 9.2.0 (Doc ID 1111453.1)

Last updated on MAY 27, 2010

Applies to:

Oracle Server - Standard Edition - Version: and later   [Release: 10.2 and later ]
Information in this document applies to any platform.


A query such as this:

     SELECT       XmlElement
                           (trunc(ROWNUM/100) a,
                            trunc(ROWNUM/100) b,
                            trunc(ROWNUM/100) c,
                            trunc(ROWNUM/100) c,
                            trunc(ROWNUM/100) e,
                            trunc(ROWNUM/100) f,
                            trunc(ROWNUM/100) g,
                            1 h
       FROM       dual z
       CONNECT BY LEVEL<=16500
       GROUP BY   trunc(ROWNUM/1650);

runs much slower in (for example, Elapsed: 00:01:23.57) than it did in (for example, Elapsed: 00:00:13.17).


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

This document is being delivered to you via Oracle Support's Rapid Visibility (RaV) process, and therefore has not been subject to an independent technical review.

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.