Mercurial > urweb
view tests/optionM.ur @ 2160:72fe1cc704c5
Tag NULLs with their types in SQL, to help the DBMS do type inference
author | Adam Chlipala <adam@chlipala.net> |
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date | Sat, 04 Jul 2015 19:24:26 -0400 |
parents | a99b743a3087 |
children |
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fun main () : transaction page = return <xml>{[x <- Some 1; y <- Some 2; return (x + y)]}</xml>