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Support Article

Optimser hint is not used in RDB-List

SA-19815

Summary



An optimizer hint was specified in the Browse SQL for a Connect SQL rule. However, this hint is not present in the SQL sent to the database.

Error Messages



Not Applicable

Steps to Reproduce



Specify an optimizer hint in the SQL for a Connect SQL rule.

Root Cause



Pega filters out data that is considered to be comments in the custom SQL contained in RDB-List rules. Oracle hints resemble comments and are filtered.

Resolution



Specify the hints using Asls keyword.

Refer to SA-10763 support article on the PDN. Its link is given below.
https://pdn.pega.com/support-articles/slow-performance-query-ignoring-prpc-hint

The Help file page for Connect SQL form - Data mapping contains more information on the AsIs keyword and its use. Search for AsIs in Help.

Published February 18, 2016 - Updated October 8, 2020

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