You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
307 lines
18 KiB
307 lines
18 KiB
// Copyright 2019 PingCAP, Inc.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package executor_test
|
|
|
|
import (
|
|
"fmt"
|
|
. "github.com/pingcap/check"
|
|
"github.com/pingcap/tidb/util/testkit"
|
|
)
|
|
|
|
func (s *testSuite7) TestWindowFunctions(c *C) {
|
|
tk := testkit.NewTestKit(c, s.store)
|
|
tk.MustExec("set @@tidb_window_concurrency = 1")
|
|
doTestWindowFunctions(tk)
|
|
}
|
|
|
|
func (s *testSuite7) TestWindowParallelFunctions(c *C) {
|
|
tk := testkit.NewTestKit(c, s.store)
|
|
tk.MustExec("set @@tidb_window_concurrency = 4")
|
|
doTestWindowFunctions(tk)
|
|
}
|
|
|
|
func doTestWindowFunctions(tk *testkit.TestKit) {
|
|
var result *testkit.Result
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists t")
|
|
tk.MustExec("create table t (a int, b int, c int)")
|
|
tk.MustExec("set @@tidb_enable_window_function = 1")
|
|
defer func() {
|
|
tk.MustExec("set @@tidb_enable_window_function = 0")
|
|
}()
|
|
tk.MustExec("insert into t values (1,2,3),(4,3,2),(2,3,4)")
|
|
result = tk.MustQuery("select count(a) over () from t")
|
|
result.Check(testkit.Rows("3", "3", "3"))
|
|
result = tk.MustQuery("select sum(a) over () + count(a) over () from t")
|
|
result.Check(testkit.Rows("10", "10", "10"))
|
|
result = tk.MustQuery("select sum(a) over (partition by a) from t").Sort()
|
|
result.Check(testkit.Rows("1", "2", "4"))
|
|
result = tk.MustQuery("select 1 + sum(a) over (), count(a) over () from t")
|
|
result.Check(testkit.Rows("8 3", "8 3", "8 3"))
|
|
result = tk.MustQuery("select sum(t1.a) over() from t t1, t t2")
|
|
result.Check(testkit.Rows("21", "21", "21", "21", "21", "21", "21", "21", "21"))
|
|
result = tk.MustQuery("select _tidb_rowid, sum(t.a) over() from t")
|
|
result.Check(testkit.Rows("1 7", "2 7", "3 7"))
|
|
|
|
result = tk.MustQuery("select a, row_number() over() from t")
|
|
result.Check(testkit.Rows("1 1", "4 2", "2 3"))
|
|
result = tk.MustQuery("select a, row_number() over(partition by a) from t").Sort()
|
|
result.Check(testkit.Rows("1 1", "2 1", "4 1"))
|
|
|
|
result = tk.MustQuery("select a, sum(a) over(rows between unbounded preceding and 1 following) from t")
|
|
result.Check(testkit.Rows("1 5", "4 7", "2 7"))
|
|
result = tk.MustQuery("select a, sum(a) over(rows between 1 preceding and 1 following) from t")
|
|
result.Check(testkit.Rows("1 5", "4 7", "2 6"))
|
|
result = tk.MustQuery("select a, sum(a) over(rows between unbounded preceding and 1 preceding) from t")
|
|
result.Check(testkit.Rows("1 <nil>", "4 1", "2 5"))
|
|
|
|
tk.MustExec("drop table t")
|
|
tk.MustExec("create table t(a int, b date)")
|
|
tk.MustExec("insert into t values (null,null),(1,20190201),(2,20190202),(3,20190203),(5,20190205)")
|
|
result = tk.MustQuery("select a, sum(a) over(order by a range between 1 preceding and 2 following) from t")
|
|
result.Check(testkit.Rows("<nil> <nil>", "1 6", "2 6", "3 10", "5 5"))
|
|
result = tk.MustQuery("select a, sum(a) over(order by a desc range between 1 preceding and 2 following) from t")
|
|
result.Check(testkit.Rows("5 8", "3 6", "2 6", "1 3", "<nil> <nil>"))
|
|
result = tk.MustQuery("select a, b, sum(a) over(order by b range between interval 1 day preceding and interval 2 day following) from t")
|
|
result.Check(testkit.Rows("<nil> <nil> <nil>", "1 2019-02-01 6", "2 2019-02-02 6", "3 2019-02-03 10", "5 2019-02-05 5"))
|
|
result = tk.MustQuery("select a, b, sum(a) over(order by b desc range between interval 1 day preceding and interval 2 day following) from t")
|
|
result.Check(testkit.Rows("5 2019-02-05 8", "3 2019-02-03 6", "2 2019-02-02 6", "1 2019-02-01 3", "<nil> <nil> <nil>"))
|
|
|
|
tk.MustExec("drop table t")
|
|
tk.MustExec("CREATE TABLE t (id INTEGER, sex CHAR(1))")
|
|
tk.MustExec("insert into t values (1, 'M'), (2, 'F'), (3, 'F'), (4, 'F'), (5, 'M'), (10, NULL), (11, NULL)")
|
|
result = tk.MustQuery("SELECT sex, id, RANK() OVER (PARTITION BY sex ORDER BY id DESC) FROM t").Sort()
|
|
result.Check(testkit.Rows("<nil> 10 2", "<nil> 11 1", "F 2 3", "F 3 2", "F 4 1", "M 1 2", "M 5 1"))
|
|
|
|
tk.MustExec("drop table t")
|
|
tk.MustExec("create table t(a int, b int)")
|
|
tk.MustExec("insert into t values (1,1),(1,2),(2,1),(2,2)")
|
|
result = tk.MustQuery("select a, b, rank() over() from t")
|
|
result.Check(testkit.Rows("1 1 1", "1 2 1", "2 1 1", "2 2 1"))
|
|
result = tk.MustQuery("select a, b, rank() over(order by a) from t")
|
|
result.Check(testkit.Rows("1 1 1", "1 2 1", "2 1 3", "2 2 3"))
|
|
result = tk.MustQuery("select a, b, rank() over(order by a, b) from t")
|
|
result.Check(testkit.Rows("1 1 1", "1 2 2", "2 1 3", "2 2 4"))
|
|
|
|
result = tk.MustQuery("select a, b, dense_rank() over() from t")
|
|
result.Check(testkit.Rows("1 1 1", "1 2 1", "2 1 1", "2 2 1"))
|
|
result = tk.MustQuery("select a, b, dense_rank() over(order by a) from t")
|
|
result.Check(testkit.Rows("1 1 1", "1 2 1", "2 1 2", "2 2 2"))
|
|
result = tk.MustQuery("select a, b, dense_rank() over(order by a, b) from t")
|
|
result.Check(testkit.Rows("1 1 1", "1 2 2", "2 1 3", "2 2 4"))
|
|
|
|
result = tk.MustQuery("select row_number() over(rows between 1 preceding and 1 following) from t")
|
|
result.Check(testkit.Rows("1", "2", "3", "4"))
|
|
result = tk.MustQuery("show warnings")
|
|
result.Check(testkit.Rows("Note 3599 Window function 'row_number' ignores the frame clause of window '<unnamed window>' and aggregates over the whole partition"))
|
|
|
|
result = tk.MustQuery("select a, sum(a) over() from t")
|
|
result.Check(testkit.Rows("1 6", "1 6", "2 6", "2 6"))
|
|
result = tk.MustQuery("select a, sum(a) over(order by a) from t")
|
|
result.Check(testkit.Rows("1 2", "1 2", "2 6", "2 6"))
|
|
result = tk.MustQuery("select a, sum(a) over(order by a, b) from t")
|
|
result.Check(testkit.Rows("1 1", "1 2", "2 4", "2 6"))
|
|
|
|
result = tk.MustQuery("select a, first_value(a) over(), last_value(a) over() from t")
|
|
result.Check(testkit.Rows("1 1 2", "1 1 2", "2 1 2", "2 1 2"))
|
|
result = tk.MustQuery("select a, first_value(a) over(rows between 1 preceding and 1 following), last_value(a) over(rows between 1 preceding and 1 following) from t")
|
|
result.Check(testkit.Rows("1 1 1", "1 1 2", "2 1 2", "2 2 2"))
|
|
result = tk.MustQuery("select a, first_value(a) over(rows between 1 following and 1 following), last_value(a) over(rows between 1 following and 1 following) from t")
|
|
result.Check(testkit.Rows("1 1 1", "1 2 2", "2 2 2", "2 <nil> <nil>"))
|
|
result = tk.MustQuery("select a, first_value(rand(0)) over(), last_value(rand(0)) over() from t")
|
|
result.Check(testkit.Rows("1 0.15522042769493574 0.33109208227236947", "1 0.15522042769493574 0.33109208227236947",
|
|
"2 0.15522042769493574 0.33109208227236947", "2 0.15522042769493574 0.33109208227236947"))
|
|
|
|
result = tk.MustQuery("select a, b, cume_dist() over() from t")
|
|
result.Check(testkit.Rows("1 1 1", "1 2 1", "2 1 1", "2 2 1"))
|
|
result = tk.MustQuery("select a, b, cume_dist() over(order by a) from t")
|
|
result.Check(testkit.Rows("1 1 0.5", "1 2 0.5", "2 1 1", "2 2 1"))
|
|
result = tk.MustQuery("select a, b, cume_dist() over(order by a, b) from t")
|
|
result.Check(testkit.Rows("1 1 0.25", "1 2 0.5", "2 1 0.75", "2 2 1"))
|
|
|
|
result = tk.MustQuery("select a, nth_value(a, null) over() from t")
|
|
result.Check(testkit.Rows("1 <nil>", "1 <nil>", "2 <nil>", "2 <nil>"))
|
|
result = tk.MustQuery("select a, nth_value(a, 1) over() from t")
|
|
result.Check(testkit.Rows("1 1", "1 1", "2 1", "2 1"))
|
|
result = tk.MustQuery("select a, nth_value(a, 4) over() from t")
|
|
result.Check(testkit.Rows("1 2", "1 2", "2 2", "2 2"))
|
|
result = tk.MustQuery("select a, nth_value(a, 5) over() from t")
|
|
result.Check(testkit.Rows("1 <nil>", "1 <nil>", "2 <nil>", "2 <nil>"))
|
|
|
|
result = tk.MustQuery("select ntile(3) over() from t")
|
|
result.Check(testkit.Rows("1", "1", "2", "3"))
|
|
result = tk.MustQuery("select ntile(2) over() from t")
|
|
result.Check(testkit.Rows("1", "1", "2", "2"))
|
|
result = tk.MustQuery("select ntile(null) over() from t")
|
|
result.Check(testkit.Rows("<nil>", "<nil>", "<nil>", "<nil>"))
|
|
|
|
result = tk.MustQuery("select a, percent_rank() over() from t")
|
|
result.Check(testkit.Rows("1 0", "1 0", "2 0", "2 0"))
|
|
result = tk.MustQuery("select a, percent_rank() over(order by a) from t")
|
|
result.Check(testkit.Rows("1 0", "1 0", "2 0.6666666666666666", "2 0.6666666666666666"))
|
|
result = tk.MustQuery("select a, b, percent_rank() over(order by a, b) from t")
|
|
result.Check(testkit.Rows("1 1 0", "1 2 0.3333333333333333", "2 1 0.6666666666666666", "2 2 1"))
|
|
|
|
result = tk.MustQuery("select a, lead(a) over (), lag(a) over() from t")
|
|
result.Check(testkit.Rows("1 1 <nil>", "1 2 1", "2 2 1", "2 <nil> 2"))
|
|
result = tk.MustQuery("select a, lead(a, 0) over(), lag(a, 0) over() from t")
|
|
result.Check(testkit.Rows("1 1 1", "1 1 1", "2 2 2", "2 2 2"))
|
|
result = tk.MustQuery("select a, lead(a, 1, a) over(), lag(a, 1, a) over() from t")
|
|
result.Check(testkit.Rows("1 1 1", "1 2 1", "2 2 1", "2 2 2"))
|
|
result = tk.MustQuery("select a, lead(a, 1, 'lead') over(), lag(a, 1, 'lag') over() from t")
|
|
result.Check(testkit.Rows("1 1 lag", "1 2 1", "2 2 1", "2 lead 2"))
|
|
|
|
result = tk.MustQuery("SELECT CUME_DIST() OVER (ORDER BY null);")
|
|
result.Check(testkit.Rows("1"))
|
|
|
|
tk.MustQuery("select lead(a) over(partition by null) from t").Sort().Check(testkit.Rows("1", "2", "2", "<nil>"))
|
|
|
|
tk.MustExec("create table issue10494(a INT, b CHAR(1), c DATETIME, d BLOB)")
|
|
tk.MustExec("insert into issue10494 VALUES (1,'x','2010-01-01','blob'), (2, 'y', '2011-01-01', ''), (3, 'y', '2012-01-01', ''), (4, 't', '2012-01-01', 'blob'), (5, null, '2013-01-01', null)")
|
|
tk.MustQuery("SELECT a, b, c, SUM(a) OVER (RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM issue10494 order by a;").Check(
|
|
testkit.Rows(
|
|
"1 x 2010-01-01 00:00:00 15",
|
|
"2 y 2011-01-01 00:00:00 15",
|
|
"3 y 2012-01-01 00:00:00 15",
|
|
"4 t 2012-01-01 00:00:00 15",
|
|
"5 <nil> 2013-01-01 00:00:00 15",
|
|
),
|
|
)
|
|
|
|
tk.MustExec("CREATE TABLE td_dec (id DECIMAL(10,2), sex CHAR(1));")
|
|
tk.MustExec("insert into td_dec value (2.0, 'F'), (NULL, 'F'), (1.0, 'F')")
|
|
tk.MustQuery("SELECT id, FIRST_VALUE(id) OVER w FROM td_dec WINDOW w AS (ORDER BY id);").Check(
|
|
testkit.Rows("<nil> <nil>", "1.00 <nil>", "2.00 <nil>"),
|
|
)
|
|
|
|
result = tk.MustQuery("select sum(a) over w, sum(b) over w from t window w as (order by a)")
|
|
result.Check(testkit.Rows("2 3", "2 3", "6 6", "6 6"))
|
|
result = tk.MustQuery("select row_number() over w, sum(b) over w from t window w as (order by a)")
|
|
result.Check(testkit.Rows("1 3", "2 3", "3 6", "4 6"))
|
|
result = tk.MustQuery("select row_number() over w, sum(b) over w from t window w as (rows between 1 preceding and 1 following)")
|
|
result.Check(testkit.Rows("1 3", "2 4", "3 5", "4 3"))
|
|
|
|
tk.Se.GetSessionVars().MaxChunkSize = 1
|
|
result = tk.MustQuery("select a, row_number() over (partition by a) from t").Sort()
|
|
result.Check(testkit.Rows("1 1", "1 2", "2 1", "2 2"))
|
|
}
|
|
|
|
func (s *testSuite7) TestWindowFunctionsDataReference(c *C) {
|
|
// see https://github.com/pingcap/tidb/issues/11614
|
|
tk := testkit.NewTestKit(c, s.store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists t")
|
|
tk.MustExec("create table t(a int, b int)")
|
|
tk.MustExec("insert into t values (2,1),(2,2),(2,3)")
|
|
|
|
tk.Se.GetSessionVars().MaxChunkSize = 2
|
|
result := tk.MustQuery("select a, b, rank() over (partition by a order by b) from t")
|
|
result.Check(testkit.Rows("2 1 1", "2 2 2", "2 3 3"))
|
|
result = tk.MustQuery("select a, b, PERCENT_RANK() over (partition by a order by b) from t")
|
|
result.Check(testkit.Rows("2 1 0", "2 2 0.5", "2 3 1"))
|
|
result = tk.MustQuery("select a, b, CUME_DIST() over (partition by a order by b) from t")
|
|
result.Check(testkit.Rows("2 1 0.3333333333333333", "2 2 0.6666666666666666", "2 3 1"))
|
|
|
|
// see https://github.com/pingcap/tidb/issues/12415
|
|
result = tk.MustQuery("select b, first_value(b) over (order by b RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) from t")
|
|
result.Check(testkit.Rows("1 1", "2 1", "3 1"))
|
|
result = tk.MustQuery("select b, first_value(b) over (order by b ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) from t")
|
|
result.Check(testkit.Rows("1 1", "2 1", "3 1"))
|
|
}
|
|
|
|
func (s *testSuite7) TestSlidingWindowFunctions(c *C) {
|
|
tk := testkit.NewTestKit(c, s.store)
|
|
tk.MustExec("use test;")
|
|
idTypes := []string{"INTEGER", "FLOAT", "DOUBLE"}
|
|
useHighPrecisions := []string{"ON", "OFF"}
|
|
for _, idType := range idTypes {
|
|
for _, useHighPrecision := range useHighPrecisions {
|
|
tk.MustExec("drop table if exists t;")
|
|
tk.MustExec(fmt.Sprintf("CREATE TABLE t (id %s, sex CHAR(1));", idType))
|
|
tk.MustExec(fmt.Sprintf("SET SESSION windowing_use_high_precision = %s;", useHighPrecision))
|
|
baseTestSlidingWindowFunctions(tk)
|
|
}
|
|
}
|
|
}
|
|
|
|
func baseTestSlidingWindowFunctions(tk *testkit.TestKit) {
|
|
var result *testkit.Result
|
|
tk.MustExec("insert into t values (1,'M')")
|
|
tk.MustExec("insert into t values (2,'F')")
|
|
tk.MustExec("insert into t values (3,'F')")
|
|
tk.MustExec("insert into t values (4,'F')")
|
|
tk.MustExec("insert into t values (5,'M')")
|
|
tk.MustExec("insert into t values (10,null)")
|
|
tk.MustExec("insert into t values (11,null)")
|
|
tk.MustExec("PREPARE p FROM 'SELECT sex, COUNT(id) OVER (ORDER BY id ROWS BETWEEN ? PRECEDING and ? PRECEDING) FROM t';")
|
|
tk.MustExec("SET @p1= 1;")
|
|
tk.MustExec("SET @p2= 2;")
|
|
result = tk.MustQuery("EXECUTE p USING @p1, @p2;")
|
|
result.Check(testkit.Rows("M 0", "F 0", "F 0", "F 0", "M 0", "<nil> 0", "<nil> 0"))
|
|
result = tk.MustQuery("EXECUTE p USING @p2, @p1;")
|
|
result.Check(testkit.Rows("M 0", "F 1", "F 2", "F 2", "M 2", "<nil> 2", "<nil> 2"))
|
|
tk.MustExec("DROP PREPARE p;")
|
|
tk.MustExec("PREPARE p FROM 'SELECT sex, COUNT(id) OVER (ORDER BY id ROWS BETWEEN ? FOLLOWING and ? FOLLOWING) FROM t';")
|
|
tk.MustExec("SET @p1= 1;")
|
|
tk.MustExec("SET @p2= 2;")
|
|
result = tk.MustQuery("EXECUTE p USING @p2, @p1;")
|
|
result.Check(testkit.Rows("M 0", "F 0", "F 0", "F 0", "M 0", "<nil> 0", "<nil> 0"))
|
|
result = tk.MustQuery("EXECUTE p USING @p1, @p2;")
|
|
result.Check(testkit.Rows("M 2", "F 2", "F 2", "F 2", "M 2", "<nil> 1", "<nil> 0"))
|
|
tk.MustExec("DROP PREPARE p;")
|
|
|
|
// COUNT ROWS
|
|
result = tk.MustQuery("SELECT sex, COUNT(id) OVER (ORDER BY id ROWS BETWEEN 1 FOLLOWING and 2 FOLLOWING) FROM t;")
|
|
result.Check(testkit.Rows("M 2", "F 2", "F 2", "F 2", "M 2", "<nil> 1", "<nil> 0"))
|
|
result = tk.MustQuery("SELECT sex, COUNT(id) OVER (ORDER BY id ROWS BETWEEN 3 FOLLOWING and 1 FOLLOWING) FROM t;")
|
|
result.Check(testkit.Rows("M 0", "F 0", "F 0", "F 0", "M 0", "<nil> 0", "<nil> 0"))
|
|
result = tk.MustQuery("SELECT sex, COUNT(id) OVER (ORDER BY id ROWS BETWEEN 2 PRECEDING and 1 PRECEDING) FROM t;")
|
|
result.Check(testkit.Rows("M 0", "F 1", "F 2", "F 2", "M 2", "<nil> 2", "<nil> 2"))
|
|
result = tk.MustQuery("SELECT sex, COUNT(id) OVER (ORDER BY id ROWS BETWEEN 1 PRECEDING and 3 PRECEDING) FROM t;")
|
|
result.Check(testkit.Rows("M 0", "F 0", "F 0", "F 0", "M 0", "<nil> 0", "<nil> 0"))
|
|
|
|
// COUNT RANGE
|
|
result = tk.MustQuery("SELECT sex, COUNT(id) OVER (ORDER BY id RANGE BETWEEN 1 FOLLOWING and 2 FOLLOWING) FROM t;")
|
|
result.Check(testkit.Rows("M 2", "F 2", "F 2", "F 1", "M 0", "<nil> 1", "<nil> 0"))
|
|
result = tk.MustQuery("SELECT sex, COUNT(id) OVER (ORDER BY id RANGE BETWEEN 3 FOLLOWING and 1 FOLLOWING) FROM t;")
|
|
result.Check(testkit.Rows("M 0", "F 0", "F 0", "F 0", "M 0", "<nil> 0", "<nil> 0"))
|
|
result = tk.MustQuery("SELECT sex, COUNT(id) OVER (ORDER BY id RANGE BETWEEN 2 PRECEDING and 1 PRECEDING) FROM t;")
|
|
result.Check(testkit.Rows("M 0", "F 1", "F 2", "F 2", "M 2", "<nil> 0", "<nil> 1"))
|
|
result = tk.MustQuery("SELECT sex, COUNT(id) OVER (ORDER BY id RANGE BETWEEN 1 PRECEDING and 3 PRECEDING) FROM t;")
|
|
result.Check(testkit.Rows("M 0", "F 0", "F 0", "F 0", "M 0", "<nil> 0", "<nil> 0"))
|
|
|
|
// SUM ROWS
|
|
result = tk.MustQuery("SELECT sex, SUM(id) OVER (ORDER BY id ROWS BETWEEN 1 FOLLOWING and 2 FOLLOWING) FROM t;")
|
|
result.Check(testkit.Rows("M 5", "F 7", "F 9", "F 15", "M 21", "<nil> 11", "<nil> <nil>"))
|
|
result = tk.MustQuery("SELECT sex, SUM(id) OVER (ORDER BY id ROWS BETWEEN 3 FOLLOWING and 1 FOLLOWING) FROM t;")
|
|
result.Check(testkit.Rows("M <nil>", "F <nil>", "F <nil>", "F <nil>", "M <nil>", "<nil> <nil>", "<nil> <nil>"))
|
|
result = tk.MustQuery("SELECT sex, SUM(id) OVER (ORDER BY id ROWS BETWEEN 2 PRECEDING and 1 PRECEDING) FROM t;")
|
|
result.Check(testkit.Rows("M <nil>", "F 1", "F 3", "F 5", "M 7", "<nil> 9", "<nil> 15"))
|
|
result = tk.MustQuery("SELECT sex, SUM(id) OVER (ORDER BY id ROWS BETWEEN 1 PRECEDING and 3 PRECEDING) FROM t;")
|
|
result.Check(testkit.Rows("M <nil>", "F <nil>", "F <nil>", "F <nil>", "M <nil>", "<nil> <nil>", "<nil> <nil>"))
|
|
result = tk.MustQuery("SELECT sex, SUM(id) OVER (ORDER BY id ROWS BETWEEN UNBOUNDED PRECEDING and 1 FOLLOWING) FROM t;")
|
|
result.Check(testkit.Rows("M 3", "F 6", "F 10", "F 15", "M 25", "<nil> 36", "<nil> 36"))
|
|
|
|
// SUM RANGE
|
|
result = tk.MustQuery("SELECT sex, SUM(id) OVER (ORDER BY id RANGE BETWEEN 1 FOLLOWING and 2 FOLLOWING) FROM t;")
|
|
result.Check(testkit.Rows("M 5", "F 7", "F 9", "F 5", "M <nil>", "<nil> 11", "<nil> <nil>"))
|
|
result = tk.MustQuery("SELECT sex, SUM(id) OVER (ORDER BY id RANGE BETWEEN 3 FOLLOWING and 1 FOLLOWING) FROM t;")
|
|
result.Check(testkit.Rows("M <nil>", "F <nil>", "F <nil>", "F <nil>", "M <nil>", "<nil> <nil>", "<nil> <nil>"))
|
|
result = tk.MustQuery("SELECT sex, SUM(id) OVER (ORDER BY id RANGE BETWEEN 2 PRECEDING and 1 PRECEDING) FROM t;")
|
|
result.Check(testkit.Rows("M <nil>", "F 1", "F 3", "F 5", "M 7", "<nil> <nil>", "<nil> 10"))
|
|
result = tk.MustQuery("SELECT sex, SUM(id) OVER (ORDER BY id RANGE BETWEEN 1 PRECEDING and 2 FOLLOWING) FROM t;")
|
|
result.Check(testkit.Rows("M 6", "F 10", "F 14", "F 12", "M 9", "<nil> 21", "<nil> 21"))
|
|
result = tk.MustQuery("SELECT sex, SUM(id) OVER (ORDER BY id DESC RANGE BETWEEN 1 PRECEDING and 2 FOLLOWING) FROM t;")
|
|
result.Check(testkit.Rows("<nil> 21", "<nil> 21", "M 12", "F 14", "F 10", "F 6", "M 3"))
|
|
}
|
|
|