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annotate caching-tests/test.ur @ 2275:ce96e166d938

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Fix some table renaming issues.
author Ziv Scully <ziv@mit.edu>
date Sat, 07 Nov 2015 15:16:44 -0500
parents a3cac6cea625
children c05f9a5e0f0f
rev   line source
ziv@2275 1 table tab : {Id : int, Val : int, Foo : int} PRIMARY KEY Id
ziv@2203 2
ziv@2213 3 fun cache id =
ziv@2225 4 res <- oneOrNoRows (SELECT tab.Val
ziv@2225 5 FROM tab
ziv@2225 6 WHERE tab.Id = {[id]});
ziv@2204 7 return <xml><body>
ziv@2213 8 Reading {[id]}.
ziv@2204 9 {case res of
ziv@2213 10 None => <xml>?</xml>
ziv@2213 11 | Some row => <xml>{[row.Tab.Val]}</xml>}
ziv@2204 12 </body></xml>
ziv@2203 13
ziv@2273 14 (* fun cache2 id v = *)
ziv@2273 15 (* res <- oneOrNoRows (SELECT tab.Val *)
ziv@2273 16 (* FROM tab *)
ziv@2273 17 (* WHERE tab.Id = {[id]} AND tab.Val = {[v]}); *)
ziv@2273 18 (* return <xml><body> *)
ziv@2273 19 (* Reading {[id]}. *)
ziv@2273 20 (* {case res of *)
ziv@2273 21 (* None => <xml>Nope, that's not it.</xml> *)
ziv@2273 22 (* | Some _ => <xml>Hooray! You guessed it!</xml>} *)
ziv@2273 23 (* </body></xml> *)
ziv@2273 24
ziv@2275 25 (* fun cache2 id1 id2 = *)
ziv@2275 26 (* res1 <- oneOrNoRows (SELECT tab.Val *)
ziv@2275 27 (* FROM tab *)
ziv@2275 28 (* WHERE tab.Id = {[id1]}); *)
ziv@2275 29 (* res2 <- oneOrNoRows (SELECT tab.Val *)
ziv@2275 30 (* FROM tab *)
ziv@2275 31 (* WHERE tab.Id = {[id2]}); *)
ziv@2275 32 (* return <xml><body> *)
ziv@2275 33 (* Reading {[id1]} and {[id2]}. *)
ziv@2275 34 (* {case (res1, res2) of *)
ziv@2275 35 (* (Some _, Some _) => <xml>Both are there.</xml> *)
ziv@2275 36 (* | _ => <xml>One of them is missing.</xml>} *)
ziv@2275 37 (* </body></xml> *)
ziv@2269 38
ziv@2213 39 fun flush id =
ziv@2239 40 dml (UPDATE tab
ziv@2239 41 SET Val = Val * (Id + 2) / Val - 3
ziv@2239 42 WHERE Id = {[id]} OR Id = {[id - 1]} OR Id = {[id + 1]});
ziv@2204 43 return <xml><body>
ziv@2235 44 Changed {[id]}!
ziv@2204 45 </body></xml>
ziv@2234 46
ziv@2275 47 fun flash id =
ziv@2242 48 dml (UPDATE tab
ziv@2275 49 SET Foo = Val
ziv@2275 50 WHERE Id = {[id]} OR Id = {[id - 1]} OR Id = {[id + 1]});
ziv@2242 51 return <xml><body>
ziv@2275 52 Maybe changed {[id]}?
ziv@2242 53 </body></xml>
ziv@2242 54
ziv@2275 55 fun floosh id =
ziv@2275 56 dml (UPDATE tab
ziv@2275 57 SET Id = {[id + 1]}
ziv@2275 58 WHERE Id = {[id]});
ziv@2275 59 return <xml><body>
ziv@2275 60 Shifted {[id]}!
ziv@2275 61 </body></xml>
ziv@2275 62
ziv@2275 63 (* val flush17 = *)
ziv@2275 64 (* dml (UPDATE tab *)
ziv@2275 65 (* SET Val = Val * (Id + 2) / Val - 3 *)
ziv@2275 66 (* WHERE Id = 17); *)
ziv@2275 67 (* return <xml><body> *)
ziv@2275 68 (* Changed specifically 17! *)
ziv@2275 69 (* </body></xml> *)
ziv@2275 70
ziv@2235 71 (* fun flush id = *)
ziv@2235 72 (* res <- oneOrNoRows (SELECT tab.Val *)
ziv@2235 73 (* FROM tab *)
ziv@2235 74 (* WHERE tab.Id = {[id]}); *)
ziv@2235 75 (* (case res of *)
ziv@2235 76 (* None => dml (INSERT INTO tab (Id, Val) *)
ziv@2235 77 (* VALUES ({[id]}, 0)) *)
ziv@2235 78 (* | Some row => dml (UPDATE tab *)
ziv@2235 79 (* SET Val = {[row.Tab.Val + 1]} *)
ziv@2235 80 (* WHERE Id = {[id]} OR Id = {[id + 1]})); *)
ziv@2235 81 (* return <xml><body> *)
ziv@2235 82 (* {case res of *)
ziv@2235 83 (* None => <xml>Initialized {[id]}!</xml> *)
ziv@2235 84 (* | Some row => <xml>Incremented {[id]}!</xml>} *)
ziv@2235 85 (* </body></xml> *)