4D v16.3

Get last query plan

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4D v16.3
Get last query plan

Get last query plan 


 

Get last query plan ( descFormat ) -> Function result 
Parameter Type   Description
descFormat  Longint in Description format (Text or XML)
Function result  String in Description of last executed query plan

The Get last query plan command returns the detailed internal description of the query plan for the last query carried out on the data. For more information about query descriptions, please refer to the documentation of the DESCRIBE QUERY EXECUTION command.

This description is returned in Text or XML format depending on the value passed in the descFormat parameter. You can pass one of the following constants, found in the “Queries” theme:

Constant Type Value
Description in text format Longint 0
Description in XML format Longint 1


This command returns a significant value if the DESCRIBE QUERY EXECUTION command has been executed during the session.

The description of the last query plan can be compared to the description of the actual path of the last query (obtained using the Get last query path command) for optimization purposes.



See also 

DESCRIBE QUERY EXECUTION
Get last query path

 
PROPERTIES 

Product: 4D
Theme: Queries
Number: 1046

This command can be run in preemptive processes

 
HISTORY 

Created: 4D v11 SQL Release 1

 
ARTICLE USAGE

4D Language Reference ( 4D v16)
4D Language Reference ( 4D v16.1)
4D Language Reference ( 4D v16.2)
4D Language Reference ( 4D v16.3)