Linking to JIRA that was logged under Teiid Designer. I was able to reproduce the reported problem with both types of VDB - it is not really a designer issue.

For this query:
select Opportunity.CloseDate from SalesForceSource.Campaign, SalesForceSource.Opportunity WHERE Campaign.Id = Opportunity.CampaignId

I was able to reproduce with earlier 8.7 version of teiid, but it appears to have been addressed in a later 8.7.x version (DV62).

However I then tried this query:
select Opportunity.CloseDate from SalesForceSource.Campaign, SalesForceSource.Opportunity WHERE Campaign.Id = 'xx'

which results in a "Invalid QName in mapping: sf:INVALID_QUERY_FILTER_OPERATOR" exception (see attachment). This occurs in the DV62/teiid8.7.1 version.

I realize there has been some work recently in the salesforce connector area, so not sure if it is still an issue with recent versions.