Quadcap Embeddable Database

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tableConstraint
  :  (  "constraint" sqlId 
    |  
    ) 
    (  "primary" "key" LPAREN idList RPAREN 
    |  "unique" LPAREN idList RPAREN 
    |  "foreign" "key" LPAREN idList RPAREN "references" sqlId 
      (  LPAREN idList RPAREN 
      |  
      ) 
      referentialSpec 
    |  "check" expression 
    ) 
  ;