106 lines
3.8 KiB
Plaintext
106 lines
3.8 KiB
Plaintext
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These are the tests for parsing focusing on the from part of query
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expression
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> module Language.SQL.SimpleSQL.TableRefs (tableRefTests) where
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> import Language.SQL.SimpleSQL.TestTypes
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> import Language.SQL.SimpleSQL.Syntax
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> tableRefTests :: TestItem
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> tableRefTests = Group "tableRefTests" $ map (uncurry TestQueryExpr)
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> [("select a from t"
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> ,ms [TRSimple [Name "t"]])
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> ,("select a from f(a)"
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> ,ms [TRFunction [Name "f"] [Iden [Name "a"]]])
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> ,("select a from t,u"
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> ,ms [TRSimple [Name "t"], TRSimple [Name "u"]])
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> ,("select a from s.t"
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> ,ms [TRSimple [Name "s", Name "t"]])
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these lateral queries make no sense but the syntax is valid
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> ,("select a from lateral a"
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> ,ms [TRLateral $ TRSimple [Name "a"]])
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> ,("select a from lateral a,b"
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> ,ms [TRLateral $ TRSimple [Name "a"], TRSimple [Name "b"]])
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> ,("select a from a, lateral b"
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> ,ms [TRSimple [Name "a"], TRLateral $ TRSimple [Name "b"]])
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> ,("select a from a natural join lateral b"
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> ,ms [TRJoin (TRSimple [Name "a"]) True JInner
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> (TRLateral $ TRSimple [Name "b"])
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> Nothing])
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> ,("select a from lateral a natural join lateral b"
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> ,ms [TRJoin (TRLateral $ TRSimple [Name "a"]) True JInner
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> (TRLateral $ TRSimple [Name "b"])
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> Nothing])
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> ,("select a from t inner join u on expr"
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> ,ms [TRJoin (TRSimple [Name "t"]) False JInner (TRSimple [Name "u"])
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> (Just $ JoinOn $ Iden [Name "expr"])])
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> ,("select a from t join u on expr"
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> ,ms [TRJoin (TRSimple [Name "t"]) False JInner (TRSimple [Name "u"])
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> (Just $ JoinOn $ Iden [Name "expr"])])
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> ,("select a from t left join u on expr"
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> ,ms [TRJoin (TRSimple [Name "t"]) False JLeft (TRSimple [Name "u"])
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> (Just $ JoinOn $ Iden [Name "expr"])])
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> ,("select a from t right join u on expr"
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> ,ms [TRJoin (TRSimple [Name "t"]) False JRight (TRSimple [Name "u"])
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> (Just $ JoinOn $ Iden [Name "expr"])])
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> ,("select a from t full join u on expr"
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> ,ms [TRJoin (TRSimple [Name "t"]) False JFull (TRSimple [Name "u"])
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> (Just $ JoinOn $ Iden [Name "expr"])])
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> ,("select a from t cross join u"
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> ,ms [TRJoin (TRSimple [Name "t"]) False
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> JCross (TRSimple [Name "u"]) Nothing])
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> ,("select a from t natural inner join u"
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> ,ms [TRJoin (TRSimple [Name "t"]) True JInner (TRSimple [Name "u"])
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> Nothing])
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> ,("select a from t inner join u using(a,b)"
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> ,ms [TRJoin (TRSimple [Name "t"]) False JInner (TRSimple [Name "u"])
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> (Just $ JoinUsing [Name "a", Name "b"])])
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> ,("select a from (select a from t)"
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> ,ms [TRQueryExpr $ ms [TRSimple [Name "t"]]])
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> ,("select a from t as u"
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> ,ms [TRAlias (TRSimple [Name "t"]) (Alias (Name "u") Nothing)])
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> ,("select a from t u"
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> ,ms [TRAlias (TRSimple [Name "t"]) (Alias (Name "u") Nothing)])
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> ,("select a from t u(b)"
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> ,ms [TRAlias (TRSimple [Name "t"]) (Alias (Name "u") $ Just [Name "b"])])
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> ,("select a from (t cross join u) as u"
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> ,ms [TRAlias (TRParens $
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> TRJoin (TRSimple [Name "t"]) False JCross (TRSimple [Name "u"]) Nothing)
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> (Alias (Name "u") Nothing)])
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> -- todo: not sure if the associativity is correct
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> ,("select a from t cross join u cross join v",
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> ms [TRJoin
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> (TRJoin (TRSimple [Name "t"]) False
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> JCross (TRSimple [Name "u"]) Nothing)
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> False JCross (TRSimple [Name "v"]) Nothing])
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> ]
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> where
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> ms f = makeSelect {qeSelectList = [(Iden [Name "a"],Nothing)]
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> ,qeFrom = f}
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