[OASIS Issue Tracker] Created: (CMIS-299) Make parentheses optionalafter ON in JOIN specification

[OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>]

Make parentheses optional after ON in JOIN specification
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                 Key: CMIS-299
                 URL: http://tools.oasis-open.org/issues/browse/CMIS-299
             Project: OASIS Content Management Interoperability Services (CMIS) TC
          Issue Type: Improvement
          Components: Domain Model
            Reporter: Florent Guillaume
            Assignee: Ethan Gur-esh
            Priority: Minor


The BNF for queries has:

  <join specification> ::= ON "(" <column reference> "=" <column reference> ")"

I see no reason to have the parentheses mandatory; for consistency with the syntax of many databases I'd rather have:

  <join specification> ::= ON ( <column reference> "=" <column reference> | "(" <column reference> "=" <column reference> ")" )

(And if people want to completely ditch the redundant parentheses I'm all for it as well.)


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