Hello All.

  Currently Firebird uses rule "CHAR(X)+CHAR(Y)=>CHAR(MAX(X,Y))".
Theoretically it can be changed into "CHAR(X)+CHAR(Y)=>CHAR(X) if X==Y and CHAR(X)+CHAR(Y)=>VARCHAR(MAX(X,Y)) if X!=Y".
  But what SQL standard says about it?

--
  WBR, SD.


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