The default behavior of StarSQL is to support SYNONYMS as input or output in catalog calls. If you enable or disable AllowSynonyms, the setting for IncludeSynonyms is forced to the same value, regardless of whether it was explicitly set.
When AllowSynonyms or IncludeSynonyms is set to Yes, synonyms are supported, as both input and output, in catalog calls.
To disable Synonyms support, set AllowSynonyms to No on the Expert Page of the Data Source Setup Wizard. When AllowSynonyms or IncludeSynonyms is disabled, synonyms are not returned in results and are not found when passed as input parameters.