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ForeignFunctionInterface :: KnownExtensionhaskell-src-exts Language.Haskell.Exts.Extension - GHC § 8 Enable the Foreign Function Interface. In GHC, implements the standard Haskell 98 Foreign Function Interface Addendum, plus some GHC-specific extensions.
ForExp :: l -> CallConv l -> Maybe String -> Name l -> Type l -> Decl lhaskell-src-exts Language.Haskell.Exts.Syntax A foreign export declaration
ForImp :: l -> CallConv l -> Maybe (Safety l) -> Maybe String -> Name l -> Type l -> Decl lhaskell-src-exts Language.Haskell.Exts.Syntax A foreign import declaration
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postgresql-simple Database.PostgreSQL.Simple Exception thrown if a Query could not be formatted correctly. This may occur if the number of '?' characters in the query string does not match the number of parameters provided.
FormatError :: String -> Query -> [ByteString] -> FormatErrorpostgresql-simple Database.PostgreSQL.Simple No documentation available.
ForeignKeyViolation :: ByteString -> ByteString -> ConstraintViolationpostgresql-simple Database.PostgreSQL.Simple.Errors Table name and name of violated constraint
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postgresql-simple Database.PostgreSQL.Simple.FromField No documentation available.
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postgresql-simple Database.PostgreSQL.Simple.Internal Exception thrown if a Query could not be formatted correctly. This may occur if the number of '?' characters in the query string does not match the number of parameters provided.
FormatError :: String -> Query -> [ByteString] -> FormatErrorpostgresql-simple Database.PostgreSQL.Simple.Internal No documentation available.
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persistent-sqlite Database.Persist.Sqlite Data type for reporting foreign key violations using checkForeignKeys.