37dca6596b
support collate postfix operator support escape and uescape as postfix operators change the collate support in substring and trim which isn't a special case in the sql 2003 grammar anymore but just a normal collate postfix operator, the old code had the collation name as a string, but the new style is as an identifier
407 lines
13 KiB
Plaintext
407 lines
13 KiB
Plaintext
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Tests for parsing value expressions
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> {-# LANGUAGE OverloadedStrings #-}
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> module Language.SQL.SimpleSQL.ValueExprs (valueExprTests) where
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> import Language.SQL.SimpleSQL.TestTypes
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> import Language.SQL.SimpleSQL.Syntax
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> valueExprTests :: TestItem
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> valueExprTests = Group "valueExprTests"
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> [literals
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> ,identifiers
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> ,star
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> ,parameter
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> ,dots
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> ,app
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> ,caseexp
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> ,operators
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> ,parens
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> ,subqueries
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> ,aggregates
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> ,windowFunctions
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> ]
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> literals :: TestItem
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> literals = Group "literals" $ map (uncurry TestValueExpr)
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> [("3", NumLit "3")
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> ,("3.", NumLit "3.")
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> ,("3.3", NumLit "3.3")
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> ,(".3", NumLit ".3")
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> ,("3.e3", NumLit "3.e3")
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> ,("3.3e3", NumLit "3.3e3")
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> ,(".3e3", NumLit ".3e3")
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> ,("3e3", NumLit "3e3")
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> ,("3e+3", NumLit "3e+3")
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> ,("3e-3", NumLit "3e-3")
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> ,("'string'", StringLit "string")
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> ,("'string with a '' quote'", StringLit "string with a ' quote")
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> ,("'1'", StringLit "1")
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> ,("interval '3' day", IntervalLit "3" "day" Nothing)
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> ,("interval '3' day (3)", IntervalLit "3" "day" $ Just 3)
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> ,("interval '3 weeks'", TypedLit (TypeName "interval") "3 weeks")
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> ]
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> identifiers :: TestItem
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> identifiers = Group "identifiers" $ map (uncurry TestValueExpr)
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> [("iden1", Iden "iden1")
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> --,("t.a", Iden2 "t" "a")
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> ,("\"quoted identifier\"", Iden $ QName "quoted identifier")
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> ]
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> star :: TestItem
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> star = Group "star" $ map (uncurry TestValueExpr)
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> [("*", Star)
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> --,("t.*", Star2 "t")
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> --,("ROW(t.*,42)", App "ROW" [Star2 "t", NumLit "42"])
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> ]
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> parameter :: TestItem
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> parameter = Group "parameter" $ map (uncurry TestValueExpr)
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> [("?", Parameter)
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> ]
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> dots :: TestItem
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> dots = Group "dot" $ map (uncurry TestValueExpr)
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> [("t.a", BinOp (Iden "t") "." (Iden "a"))
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> ,("t.*", BinOp (Iden "t") "." Star)
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> ,("a.b.c", BinOp (BinOp (Iden "a") "." (Iden "b")) "." (Iden "c"))
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> ,("ROW(t.*,42)", App "ROW" [BinOp (Iden "t") "." Star, NumLit "42"])
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> ]
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> app :: TestItem
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> app = Group "app" $ map (uncurry TestValueExpr)
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> [("f()", App "f" [])
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> ,("f(a)", App "f" [Iden "a"])
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> ,("f(a,b)", App "f" [Iden "a", Iden "b"])
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> ]
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> caseexp :: TestItem
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> caseexp = Group "caseexp" $ map (uncurry TestValueExpr)
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> [("case a when 1 then 2 end"
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> ,Case (Just $ Iden "a") [([NumLit "1"]
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> ,NumLit "2")] Nothing)
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> ,("case a when 1 then 2 when 3 then 4 end"
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> ,Case (Just $ Iden "a") [([NumLit "1"], NumLit "2")
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> ,([NumLit "3"], NumLit "4")] Nothing)
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> ,("case a when 1 then 2 when 3 then 4 else 5 end"
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> ,Case (Just $ Iden "a") [([NumLit "1"], NumLit "2")
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> ,([NumLit "3"], NumLit "4")]
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> (Just $ NumLit "5"))
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> ,("case when a=1 then 2 when a=3 then 4 else 5 end"
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> ,Case Nothing [([BinOp (Iden "a") "=" (NumLit "1")], NumLit "2")
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> ,([BinOp (Iden "a") "=" (NumLit "3")], NumLit "4")]
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> (Just $ NumLit "5"))
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> ,("case a when 1,2 then 10 when 3,4 then 20 end"
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> ,Case (Just $ Iden "a") [([NumLit "1",NumLit "2"]
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> ,NumLit "10")
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> ,([NumLit "3",NumLit "4"]
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> ,NumLit "20")]
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> Nothing)
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> ]
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> operators :: TestItem
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> operators = Group "operators"
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> [binaryOperators
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> ,unaryOperators
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> ,casts
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> ,miscOps]
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> binaryOperators :: TestItem
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> binaryOperators = Group "binaryOperators" $ map (uncurry TestValueExpr)
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> [("a + b", BinOp (Iden "a") "+" (Iden "b"))
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> -- sanity check fixities
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> -- todo: add more fixity checking
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> ,("a + b * c"
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> ,BinOp (Iden "a") "+"
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> (BinOp (Iden "b") "*" (Iden "c")))
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> ,("a * b + c"
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> ,BinOp (BinOp (Iden "a") "*" (Iden "b"))
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> "+" (Iden "c"))
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> ]
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> unaryOperators :: TestItem
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> unaryOperators = Group "unaryOperators" $ map (uncurry TestValueExpr)
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> [("not a", PrefixOp "not" $ Iden "a")
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> -- I think this is a missing feature or bug in parsec buildExpressionParser
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> --,("not not a", PrefixOp "not" $ PrefixOp "not" $ Iden "a")
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> ,("+a", PrefixOp "+" $ Iden "a")
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> ,("-a", PrefixOp "-" $ Iden "a")
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> ]
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> casts :: TestItem
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> casts = Group "operators" $ map (uncurry TestValueExpr)
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> [("cast('1' as int)"
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> ,Cast (StringLit "1") $ TypeName "int")
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> ,("int '3'"
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> ,TypedLit (TypeName "int") "3")
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> ,("cast('1' as double precision)"
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> ,Cast (StringLit "1") $ TypeName "double precision")
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> ,("cast('1' as float(8))"
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> ,Cast (StringLit "1") $ PrecTypeName "float" 8)
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> ,("cast('1' as decimal(15,2))"
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> ,Cast (StringLit "1") $ PrecScaleTypeName "decimal" 15 2)
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> ,("double precision '3'"
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> ,TypedLit (TypeName "double precision") "3")
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> ]
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> subqueries :: TestItem
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> subqueries = Group "unaryOperators" $ map (uncurry TestValueExpr)
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> [("exists (select a from t)", SubQueryExpr SqExists ms)
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> ,("(select a from t)", SubQueryExpr SqSq ms)
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> ,("a in (select a from t)"
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> ,In True (Iden "a") (InQueryExpr ms))
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> ,("a not in (select a from t)"
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> ,In False (Iden "a") (InQueryExpr ms))
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> ,("a > all (select a from t)"
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> ,QuantifiedComparison (Iden "a") ">" CPAll ms)
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> ,("a = some (select a from t)"
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> ,QuantifiedComparison (Iden "a") "=" CPSome ms)
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> ,("a <= any (select a from t)"
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> ,QuantifiedComparison (Iden "a") "<=" CPAny ms)
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> ]
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> where
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> ms = makeSelect
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> {qeSelectList = [(Iden "a",Nothing)]
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> ,qeFrom = [TRSimple "t"]
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> }
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> miscOps :: TestItem
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> miscOps = Group "unaryOperators" $ map (uncurry TestValueExpr)
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> [("a in (1,2,3)"
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> ,In True (Iden "a") $ InList $ map NumLit ["1","2","3"])
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> ,("a is null", PostfixOp "is null" (Iden "a"))
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> ,("a is not null", PostfixOp "is not null" (Iden "a"))
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> ,("a is true", PostfixOp "is true" (Iden "a"))
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> ,("a is not true", PostfixOp "is not true" (Iden "a"))
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> ,("a is false", PostfixOp "is false" (Iden "a"))
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> ,("a is not false", PostfixOp "is not false" (Iden "a"))
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> ,("a is unknown", PostfixOp "is unknown" (Iden "a"))
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> ,("a is not unknown", PostfixOp "is not unknown" (Iden "a"))
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> ,("a is distinct from b", BinOp (Iden "a") "is distinct from"(Iden "b"))
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> ,("a is not distinct from b"
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> ,BinOp (Iden "a") "is not distinct from" (Iden "b"))
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> ,("a like b", BinOp (Iden "a") "like" (Iden "b"))
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> ,("a not like b", BinOp (Iden "a") "not like" (Iden "b"))
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> ,("a is similar to b", BinOp (Iden "a") "is similar to" (Iden "b"))
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> ,("a is not similar to b"
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> ,BinOp (Iden "a") "is not similar to" (Iden "b"))
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> ,("a overlaps b", BinOp (Iden "a") "overlaps" (Iden "b"))
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special operators
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> ,("a between b and c", SpecialOp "between" [Iden "a"
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> ,Iden "b"
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> ,Iden "c"])
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> ,("a not between b and c", SpecialOp "not between" [Iden "a"
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> ,Iden "b"
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> ,Iden "c"])
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> ,("(1,2)"
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> ,SpecialOp "rowctor" [NumLit "1", NumLit "2"])
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keyword special operators
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> ,("extract(day from t)"
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> , SpecialOpK "extract" (Just $ Iden "day") [("from", Iden "t")])
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> ,("substring(x from 1 for 2)"
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> ,SpecialOpK "substring" (Just $ Iden "x") [("from", NumLit "1")
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> ,("for", NumLit "2")])
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> ,("substring(x from 1)"
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> ,SpecialOpK "substring" (Just $ Iden "x") [("from", NumLit "1")])
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> ,("substring(x for 2)"
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> ,SpecialOpK "substring" (Just $ Iden "x") [("for", NumLit "2")])
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> ,("substring(x from 1 for 2 collate C)"
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> ,SpecialOpK "substring" (Just $ Iden "x")
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> [("from", NumLit "1")
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> ,("for", Collate (NumLit "2") "C")])
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this doesn't work because of a overlap in the 'in' parser
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> ,("POSITION( string1 IN string2 )"
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> ,SpecialOpK "position" (Just $ Iden "string1") [("in", Iden "string2")])
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> ,("CONVERT(char_value USING conversion_char_name)"
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> ,SpecialOpK "convert" (Just $ Iden "char_value")
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> [("using", Iden "conversion_char_name")])
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> ,("TRANSLATE(char_value USING translation_name)"
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> ,SpecialOpK "translate" (Just $ Iden "char_value")
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> [("using", Iden "translation_name")])
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OVERLAY(string PLACING embedded_string FROM start
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[FOR length])
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> ,("OVERLAY(string PLACING embedded_string FROM start)"
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> ,SpecialOpK "overlay" (Just $ Iden "string")
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> [("placing", Iden "embedded_string")
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> ,("from", Iden "start")])
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> ,("OVERLAY(string PLACING embedded_string FROM start FOR length)"
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> ,SpecialOpK "overlay" (Just $ Iden "string")
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> [("placing", Iden "embedded_string")
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> ,("from", Iden "start")
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> ,("for", Iden "length")])
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TRIM( [ [{LEADING | TRAILING | BOTH}] [removal_char] FROM ]
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target_string
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[COLLATE collation_name] )
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> ,("trim(from target_string)"
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> ,SpecialOpK "trim" Nothing
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> [("both", StringLit " ")
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> ,("from", Iden "target_string")])
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> ,("trim(leading from target_string)"
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> ,SpecialOpK "trim" Nothing
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> [("leading", StringLit " ")
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> ,("from", Iden "target_string")])
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> ,("trim(trailing from target_string)"
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> ,SpecialOpK "trim" Nothing
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> [("trailing", StringLit " ")
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> ,("from", Iden "target_string")])
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> ,("trim(both from target_string)"
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> ,SpecialOpK "trim" Nothing
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> [("both", StringLit " ")
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> ,("from", Iden "target_string")])
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> ,("trim(leading 'x' from target_string)"
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> ,SpecialOpK "trim" Nothing
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> [("leading", StringLit "x")
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> ,("from", Iden "target_string")])
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> ,("trim(trailing 'y' from target_string)"
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> ,SpecialOpK "trim" Nothing
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> [("trailing", StringLit "y")
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> ,("from", Iden "target_string")])
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> ,("trim(both 'z' from target_string collate C)"
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> ,SpecialOpK "trim" Nothing
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> [("both", StringLit "z")
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> ,("from", Collate (Iden "target_string") "C")])
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> ,("trim(leading from target_string)"
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> ,SpecialOpK "trim" Nothing
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> [("leading", StringLit " ")
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> ,("from", Iden "target_string")])
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> ]
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> aggregates :: TestItem
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> aggregates = Group "aggregates" $ map (uncurry TestValueExpr)
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> [("count(*)",App "count" [Star])
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> ,("sum(a order by a)"
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> ,AggregateApp "sum" Nothing [Iden "a"]
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> [SortSpec (Iden "a") Asc NullsOrderDefault])
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> ,("sum(all a)"
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> ,AggregateApp "sum" (Just All) [Iden "a"] [])
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> ,("count(distinct a)"
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> ,AggregateApp "count" (Just Distinct) [Iden "a"] [])
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> ]
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> windowFunctions :: TestItem
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> windowFunctions = Group "windowFunctions" $ map (uncurry TestValueExpr)
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> [("max(a) over ()", WindowApp "max" [Iden "a"] [] [] Nothing)
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> ,("count(*) over ()", WindowApp "count" [Star] [] [] Nothing)
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> ,("max(a) over (partition by b)"
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> ,WindowApp "max" [Iden "a"] [Iden "b"] [] Nothing)
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> ,("max(a) over (partition by b,c)"
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> ,WindowApp "max" [Iden "a"] [Iden "b",Iden "c"] [] Nothing)
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> ,("sum(a) over (order by b)"
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> ,WindowApp "sum" [Iden "a"] []
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> [SortSpec (Iden "b") Asc NullsOrderDefault] Nothing)
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> ,("sum(a) over (order by b desc,c)"
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> ,WindowApp "sum" [Iden "a"] []
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> [SortSpec (Iden "b") Desc NullsOrderDefault
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> ,SortSpec (Iden "c") Asc NullsOrderDefault] Nothing)
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> ,("sum(a) over (partition by b order by c)"
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> ,WindowApp "sum" [Iden "a"] [Iden "b"]
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> [SortSpec (Iden "c") Asc NullsOrderDefault] Nothing)
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> ,("sum(a) over (partition by b order by c range unbounded preceding)"
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> ,WindowApp "sum" [Iden "a"] [Iden "b"]
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> [SortSpec (Iden "c") Asc NullsOrderDefault]
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> $ Just $ FrameFrom FrameRange UnboundedPreceding)
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> ,("sum(a) over (partition by b order by c range 5 preceding)"
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> ,WindowApp "sum" [Iden "a"] [Iden "b"]
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> [SortSpec (Iden "c") Asc NullsOrderDefault]
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> $ Just $ FrameFrom FrameRange $ Preceding (NumLit "5"))
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> ,("sum(a) over (partition by b order by c range current row)"
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> ,WindowApp "sum" [Iden "a"] [Iden "b"]
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> [SortSpec (Iden "c") Asc NullsOrderDefault]
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> $ Just $ FrameFrom FrameRange Current)
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> ,("sum(a) over (partition by b order by c rows 5 following)"
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> ,WindowApp "sum" [Iden "a"] [Iden "b"]
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> [SortSpec (Iden "c") Asc NullsOrderDefault]
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> $ Just $ FrameFrom FrameRows $ Following (NumLit "5"))
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> ,("sum(a) over (partition by b order by c range unbounded following)"
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> ,WindowApp "sum" [Iden "a"] [Iden "b"]
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> [SortSpec (Iden "c") Asc NullsOrderDefault]
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> $ Just $ FrameFrom FrameRange UnboundedFollowing)
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> ,("sum(a) over (partition by b order by c \n\
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> \range between 5 preceding and 5 following)"
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> ,WindowApp "sum" [Iden "a"] [Iden "b"]
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> [SortSpec (Iden "c") Asc NullsOrderDefault]
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> $ Just $ FrameBetween FrameRange
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> (Preceding (NumLit "5"))
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> (Following (NumLit "5")))
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> ]
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> parens :: TestItem
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> parens = Group "parens" $ map (uncurry TestValueExpr)
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> [("(a)", Parens (Iden "a"))
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> ,("(a + b)", Parens (BinOp (Iden "a") "+" (Iden "b")))
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> ]
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