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How much can performance be improved by disabling the CatalogIncludesSynonyms connection option with the Connect for ODBC Oracle Wire Protocol Driver?

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TitleHow much can performance be improved by disabling the CatalogIncludesSynonyms connection option with the Connect for ODBC Oracle Wire Protocol Driver?
URL Namehow-much-can-performance-be-improved-by-disabling-the-catalogincludessynonyms-connection-option-with-the-connect-for-odbc-oracle-wire-protocol-driver
Article Number000187741
EnvironmentProduct: Connect for ODBC Oracle Wire Protocol Driver
Version: 7.1
O/S: All Supported
Database: Oracle
Application: N/A
Question/Problem Description
How much can performance be improved by disabling the CatalogIncludesSynonyms connection option with the Connect for ODBC Oracle Wire Protocol Driver?  Are there any benchmarks available?
 
Steps to Reproduce
Clarifying Information
Error Message
Defect Number
Enhancement Number
Cause
Resolution
While performance benchmark metrics are not available, performance can be impacted by the "CatalogIncludesSynonyms" (CIS) connection option in the following way:

When enabled, the driver will send a sql query to the database which is UNION of 

1. SQL query to fetch catalog information for Procedures/Functions and
2. SQL query to fetch synonyms information.

Disabling this option improves performance by excluding the synonyms. The majority of the performance improvements will depend on the number of synonyms that exist in the database.
 
Workaround
Notes
Last Modified Date5/18/2017 4:12 PM
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