add syntax for new grouping expressions
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9 changed files with 266 additions and 28 deletions
tools/Language/SQL/SimpleSQL
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@ -30,7 +30,7 @@ Some tests for parsing full queries.
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> "+" (Iden "d")])]
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> ,qeFrom = [TRSimple "t", TRSimple "u"]
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> ,qeWhere = Just $ BinOp (Iden "a") ">" (NumLit "5")
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> ,qeGroupBy = [Iden "a"]
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> ,qeGroupBy = [SimpleGroup $ Iden "a"]
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> ,qeHaving = Just $ BinOp (App "count" [NumLit "1"])
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> ">" (NumLit "5")
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> ,qeOrderBy = [OrderField (Iden "s") Asc NullsOrderDefault]
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226
tools/Language/SQL/SimpleSQL/GroupBy.lhs
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226
tools/Language/SQL/SimpleSQL/GroupBy.lhs
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@ -0,0 +1,226 @@
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Here are the tests for the group by component of query exprs
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> {-# LANGUAGE OverloadedStrings #-}
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> module Language.SQL.SimpleSQL.GroupBy (groupByTests) where
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> import Language.SQL.SimpleSQL.TestTypes
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> import Language.SQL.SimpleSQL.Syntax
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> groupByTests :: TestItem
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> groupByTests = Group "groupByTests"
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> [simpleGroupBy
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> ,newGroupBy
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> ]
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> simpleGroupBy :: TestItem
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> simpleGroupBy = Group "simpleGroupBy" $ map (uncurry TestQueryExpr)
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> [("select a,sum(b) from t group by a"
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> ,makeSelect {qeSelectList = [(Nothing, Iden "a")
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> ,(Nothing, App "sum" [Iden "b"])]
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> ,qeFrom = [TRSimple "t"]
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> ,qeGroupBy = [SimpleGroup $ Iden "a"]
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> })
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> ,("select a,b,sum(c) from t group by a,b"
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> ,makeSelect {qeSelectList = [(Nothing, Iden "a")
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> ,(Nothing, Iden "b")
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> ,(Nothing, App "sum" [Iden "c"])]
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> ,qeFrom = [TRSimple "t"]
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> ,qeGroupBy = [SimpleGroup $ Iden "a"
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> ,SimpleGroup $ Iden "b"]
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> })
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> ]
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test the new group by (), grouping sets, cube and rollup syntax (not
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sure which sql version they were introduced, 1999 or 2003 I think).
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> newGroupBy :: TestItem
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> newGroupBy = Group "newGroupBy" $ map (uncurry TestQueryExpr)
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> [
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group by ()
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GROUP BY a
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GROUP BY GROUPING SETS((a))
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GROUP BY a,b,c
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GROUP BY GROUPING SETS((a,b,c))
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GROUP BY ROLLUP(a,b)
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GROUP BY GROUPING SETS((a,b)
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(a)
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() )
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GROUP BY ROLLUP(b,a)
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GROUP BY GROUPING SETS((b,a)
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(b)
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() )
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GROUP BY CUBE(a,b,c)
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GROUP BY GROUPING SETS((a,b,c)
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(a,b)
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(a,c)
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(b,c)
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(a)
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(b)
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(c)
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() )
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GROUP BY ROLLUP(Province, County, City)
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GROUP BY ROLLUP(Province, (County, City))
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GROUP BY ROLLUP(Province, (County, City))
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GROUP BY GROUPING SETS((Province, County, City)
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(Province)
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() )
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GROUP BY GROUPING SETS((Province, County, City)
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(Province, County)
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(Province)
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() )
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GROUP BY a, ROLLUP(b,c)
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GROUP BY GROUPING SETS((a,b,c)
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(a,b)
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(a) )
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GROUP BY a, b, ROLLUP(c,d)
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GROUP BY GROUPING SETS((a,b,c,d)
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(a,b,c)
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(a,b) )
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GROUP BY ROLLUP(a), ROLLUP(b,c)
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GROUP BY GROUPING SETS((a,b,c)
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(a,b)
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(a)
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(b,c)
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(b)
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() )
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GROUP BY ROLLUP(a), CUBE(b,c)
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GROUP BY GROUPING SETS((a,b,c)
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(a,b)
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(a,c)
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(a)
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(b,c)
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(b)
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(c)
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() )
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GROUP BY CUBE(a,b), ROLLUP(c,d)
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GROUP BY GROUPING SETS((a,b,c,d)
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(a,b,c)
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(a,b)
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(a,c,d)
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(a,c)
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(a)
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(b,c,d)
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(b,c)
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(b)
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(c,d)
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(c)
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() )
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GROUP BY a, ROLLUP(a,b)
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GROUP BY GROUPING SETS((a,b)
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(a) )
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GROUP BY Region,
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ROLLUP(Sales_Person, WEEK(Sales_Date)),
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CUBE(YEAR(Sales_Date), MONTH (Sales_Date))
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GROUP BY ROLLUP (Region, Sales_Person, WEEK(Sales_Date),
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YEAR(Sales_Date), MONTH(Sales_Date) )
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SELECT WEEK(SALES_DATE) AS WEEK,
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DAYOFWEEK(SALES_DATE) AS DAY_WEEK,
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SALES_PERSON, SUM(SALES) AS UNITS_SOLD
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FROM SALES
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WHERE WEEK(SALES_DATE) = 13
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GROUP BY WEEK(SALES_DATE), DAYOFWEEK(SALES_DATE), SALES_PERSON
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ORDER BY WEEK, DAY_WEEK, SALES_PERSON
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SELECT WEEK(SALES_DATE) AS WEEK,
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DAYOFWEEK(SALES_DATE) AS DAY_WEEK,
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SALES_PERSON, SUM(SALES) AS UNITS_SOLD
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FROM SALES
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WHERE WEEK(SALES_DATE) = 13
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GROUP BY GROUPING SETS ( (WEEK(SALES_DATE), SALES_PERSON),
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(DAYOFWEEK(SALES_DATE), SALES_PERSON))
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ORDER BY WEEK, DAY_WEEK, SALES_PERSON
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SELECT WEEK(SALES_DATE) AS WEEK,
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DAYOFWEEK(SALES_DATE) AS DAY_WEEK,
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SALES_PERSON, SUM(SALES) AS UNITS_SOLD
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FROM SALES
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WHERE WEEK(SALES_DATE) = 13
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GROUP BY ROLLUP ( WEEK(SALES_DATE), DAYOFWEEK(SALES_DATE), SALES_PERSON )
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ORDER BY WEEK, DAY_WEEK, SALES_PERSON
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SELECT WEEK(SALES_DATE) AS WEEK,
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DAYOFWEEK(SALES_DATE) AS DAY_WEEK,
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SALES_PERSON, SUM(SALES) AS UNITS_SOLD
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FROM SALES
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WHERE WEEK(SALES_DATE) = 13
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GROUP BY CUBE ( WEEK(SALES_DATE), DAYOFWEEK(SALES_DATE), SALES_PERSON )
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ORDER BY WEEK, DAY_WEEK, SALES_PERSON
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SELECT SALES_PERSON,
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MONTH(SALES_DATE) AS MONTH,
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SUM(SALES) AS UNITS_SOLD
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FROM SALES
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GROUP BY GROUPING SETS ( (SALES_PERSON, MONTH(SALES_DATE)),
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()
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)
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ORDER BY SALES_PERSON, MONTH
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SELECT WEEK(SALES_DATE) AS WEEK,
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DAYOFWEEK(SALES_DATE) AS DAY_WEEK,
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SUM(SALES) AS UNITS_SOLD
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FROM SALES
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GROUP BY ROLLUP ( WEEK(SALES_DATE), DAYOFWEEK(SALES_DATE) )
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ORDER BY WEEK, DAY_WEEK
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SELECT MONTH(SALES_DATE) AS MONTH,
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REGION,
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SUM(SALES) AS UNITS_SOLD
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FROM SALES
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GROUP BY ROLLUP ( MONTH(SALES_DATE), REGION );
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ORDER BY MONTH, REGION
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SELECT WEEK(SALES_DATE) AS WEEK,
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DAYOFWEEK(SALES_DATE) AS DAY_WEEK,
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MONTH(SALES_DATE) AS MONTH,
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REGION,
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SUM(SALES) AS UNITS_SOLD
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FROM SALES
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GROUP BY GROUPING SETS ( ROLLUP( WEEK(SALES_DATE), DAYOFWEEK(SALES_DATE) ),
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ROLLUP( MONTH(SALES_DATE), REGION ) )
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ORDER BY WEEK, DAY_WEEK, MONTH, REGION
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SELECT R1, R2,
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WEEK(SALES_DATE) AS WEEK,
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DAYOFWEEK(SALES_DATE) AS DAY_WEEK,
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MONTH(SALES_DATE) AS MONTH,
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REGION, SUM(SALES) AS UNITS_SOLD
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FROM SALES,(VALUES(’GROUP 1’,’GROUP 2’)) AS X(R1,R2)
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GROUP BY GROUPING SETS ((R1, ROLLUP(WEEK(SALES_DATE),
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DAYOFWEEK(SALES_DATE))),
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(R2,ROLLUP( MONTH(SALES_DATE), REGION ) )
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ORDER BY WEEK, DAY_WEEK, MONTH, REGION
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)
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SELECT COALESCE(R1,R2) AS GROUP,
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WEEK(SALES_DATE) AS WEEK,
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DAYOFWEEK(SALES_DATE) AS DAY_WEEK,
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MONTH(SALES_DATE) AS MONTH,
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REGION, SUM(SALES) AS UNITS_SOLD
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FROM SALES,(VALUES(’GROUP 1’,’GROUP 2’)) AS X(R1,R2)
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GROUP BY GROUPING SETS ((R1, ROLLUP(WEEK(SALES_DATE),
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DAYOFWEEK(SALES_DATE))),
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(R2,ROLLUP( MONTH(SALES_DATE), REGION ) )
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ORDER BY GROUP, WEEK, DAY_WEEK, MONTH, REGION;
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)
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SELECT MONTH(SALES_DATE) AS MONTH,
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REGION,
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SUM(SALES) AS UNITS_SOLD,
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MAX(SALES) AS BEST_SALE,
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824
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SQL Reference Volume 1
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Examples of grouping sets, cube, and rollup queries
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CAST(ROUND(AVG(DECIMAL(SALES)),2) AS DECIMAL(5,2)) AS AVG_UNITS_SOLD
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FROM SALES
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GROUP BY CUBE(MONTH(SALES_DATE),REGION)
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ORDER BY MONTH, REGION
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> ]
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@ -17,7 +17,6 @@ These are a few misc tests which don't fit anywhere else.
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> [duplicates
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> ,selectLists
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> ,whereClause
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> ,groupByClause
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> ,having
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> ,orderBy
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> ,limit
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@ -75,31 +74,13 @@ These are a few misc tests which don't fit anywhere else.
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> ,qeWhere = Just $ BinOp (Iden "a") "=" (NumLit "5")})
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> ]
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> groupByClause :: TestItem
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> groupByClause = Group "groupByClause" $ map (uncurry TestQueryExpr)
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> [("select a,sum(b) from t group by a"
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> ,makeSelect {qeSelectList = [(Nothing, Iden "a")
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> ,(Nothing, App "sum" [Iden "b"])]
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> ,qeFrom = [TRSimple "t"]
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> ,qeGroupBy = [Iden "a"]
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> })
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> ,("select a,b,sum(c) from t group by a,b"
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> ,makeSelect {qeSelectList = [(Nothing, Iden "a")
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> ,(Nothing, Iden "b")
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> ,(Nothing, App "sum" [Iden "c"])]
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> ,qeFrom = [TRSimple "t"]
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> ,qeGroupBy = [Iden "a",Iden "b"]
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> })
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> ]
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> having :: TestItem
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> having = Group "having" $ map (uncurry TestQueryExpr)
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> [("select a,sum(b) from t group by a having sum(b) > 5"
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> ,makeSelect {qeSelectList = [(Nothing, Iden "a")
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> ,(Nothing, App "sum" [Iden "b"])]
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> ,qeFrom = [TRSimple "t"]
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> ,qeGroupBy = [Iden "a"]
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> ,qeGroupBy = [SimpleGroup $ Iden "a"]
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> ,qeHaving = Just $ BinOp (App "sum" [Iden "b"])
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> ">" (NumLit "5")
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> })
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@ -26,10 +26,10 @@ tpch tests
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> import Language.SQL.SimpleSQL.TestTypes
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> import Language.SQL.SimpleSQL.FullQueries
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> import Language.SQL.SimpleSQL.GroupBy
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> import Language.SQL.SimpleSQL.Postgres
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> import Language.SQL.SimpleSQL.QueryExprComponents
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> import Language.SQL.SimpleSQL.QueryExprs
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> import Language.SQL.SimpleSQL.TableRefs
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> import Language.SQL.SimpleSQL.ScalarExprs
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> import Language.SQL.SimpleSQL.Tpch
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@ -44,8 +44,9 @@ order on the generated documentation.
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> Group "parserTest"
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> [scalarExprTests
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> ,queryExprComponentTests
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> ,tableRefTests
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> ,queryExprsTests
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> ,tableRefTests
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> ,groupByTests
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> ,fullQueriesTests
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> ,postgresTests
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> ,tpchTests
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