Result of CASE statement assigns CHAR return value to VARCHAR column
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                 Key: CORE-5300
                 URL: http://tracker.firebirdsql.org/browse/CORE-5300
             Project: Firebird Core
          Issue Type: Bug
          Components: Engine
    Affects Versions: 3.0.0
         Environment: Windows Server 2008 R2
            Reporter: Phillip Day


The following statement results in assigning a CHAR return value to a VARCHAR 
column.  The return value will be right padded with spaces based on the maximum 
length of the possible values in the CASE statement.

Update TableA Set ColumnA = Case When ColumnB = 'TestValue' then 'ShortValue' 
else 'ALongerStringValue'  end

ColumnA is a VarChar column.  The result of this statement will assign ColumnA 
a value of 'ShortValue        ' when ColumnB = 'TestValue'

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