Autodesk 15607-010000-5000A Manuale Utente

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Chapter 4

Enhanced Layer Functionality

6 To make the added SQL statement a pre-spatial query statement that will 

run before the spatial query is executed, select the statement, and click the 
Up button to reposition the statement above the spatial query.

7 Optionally, continue to add statements, selecting them individually and 

clicking the Up or Down button to position a statement above or below 
the spatial query as desired.

Note  Only one spatial query statement — either the default or customized — is 
allowed per layer. Also, regardless of their position, the results of pre- and post-
query SQL statements are ignored by the Autodesk MapGuide Server and are not 
used during its internal processing of the spatial query.

The ITEM trace log parameter now has additional information that you can 
use to track the enhanced layer features, including geometry functions, 
custom spatial queries, filter adjustments, and both pre- or post- SQL state-
ments.

Database access trace log parameters are available in this version of Autodesk 
MapGuide, as they were in the previous version. For more information about 
these parameters, see the Autodesk MapGuide Help topic, “Customizing the 
Access Log.” Click the Help Contents tab to find this topic, or search for 
“Customizing” in the index.