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Add ShowConstantSQL instance for Char DB special type.

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This commit is contained in:
Kei Hibino 2013-05-16 15:03:45 +09:00
parent dc17e931c0
commit 3ba25c618f
1 changed files with 3 additions and 0 deletions
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3
relational-join/src/Database/Relational/Query/Expr.hs
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@ -53,6 +53,9 @@ instance ShowConstantSQL ByteString where
instance ShowConstantSQL Text where
showConstantSQL = stringExprSQL . T.unpack
instance ShowConstantSQL Char where
showConstantSQL = stringExprSQL . (:"")
instance ShowConstantSQL Bool where
showConstantSQL = d where
d True = "(0=0)"