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Add support for chaining of WINDOW definitions.

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FossilOrigin-Name: c155125fd5dddb438c09d40f5137c47d88defb7a6ede4261f09d7bdaad250d37
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dan
2019-02-16 17:27:51 +00:00
parent 9c7e44cddd
commit e7c9ca41b2
8 changed files with 1934 additions and 1346 deletions
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101
test/window1.test
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@ -700,5 +700,106 @@ do_execsql_test 16.2 {
3 101
}
#-------------------------------------------------------------------------
# Test error cases from chaining window definitions.
#
reset_db
do_execsql_test 17.0 {
DROP TABLE IF EXISTS t1;
CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT, c TEXT, d INTEGER);
INSERT INTO t1 VALUES(1, 'odd', 'one', 1);
INSERT INTO t1 VALUES(2, 'even', 'two', 2);
INSERT INTO t1 VALUES(3, 'odd', 'three', 3);
INSERT INTO t1 VALUES(4, 'even', 'four', 4);
INSERT INTO t1 VALUES(5, 'odd', 'five', 5);
INSERT INTO t1 VALUES(6, 'even', 'six', 6);
}
foreach {tn sql error} {
1 {
SELECT c, sum(d) OVER win2 FROM t1
WINDOW win1 AS (ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING),
win2 AS (win1 ORDER BY b)
} {cannot override frame specification of window: win1}
2 {
SELECT c, sum(d) OVER win2 FROM t1
WINDOW win1 AS (),
win2 AS (win4 ORDER BY b)
} {no such window: win4}
3 {
SELECT c, sum(d) OVER win2 FROM t1
WINDOW win1 AS (),
win2 AS (win1 PARTITION BY d)
} {cannot override PARTITION clause of window: win1}
4 {
SELECT c, sum(d) OVER win2 FROM t1
WINDOW win1 AS (ORDER BY b),
win2 AS (win1 ORDER BY d)
} {cannot override ORDER BY clause of window: win1}
} {
do_catchsql_test 17.1.$tn $sql [list 1 $error]
}
foreach {tn sql error} {
1 {
SELECT c, sum(d) OVER (win1 ORDER BY b) FROM t1
WINDOW win1 AS (ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING)
} {cannot override frame specification of window: win1}
2 {
SELECT c, sum(d) OVER (win4 ORDER BY b) FROM t1
WINDOW win1 AS ()
} {no such window: win4}
3 {
SELECT c, sum(d) OVER (win1 PARTITION BY d) FROM t1
WINDOW win1 AS ()
} {cannot override PARTITION clause of window: win1}
4 {
SELECT c, sum(d) OVER (win1 ORDER BY d) FROM t1
WINDOW win1 AS (ORDER BY b)
} {cannot override ORDER BY clause of window: win1}
} {
do_catchsql_test 17.2.$tn $sql [list 1 $error]
}
do_execsql_test 17.3.1 {
SELECT group_concat(c, '.') OVER (PARTITION BY b ORDER BY c)
FROM t1
} {four four.six four.six.two five five.one five.one.three}
do_execsql_test 17.3.2 {
SELECT group_concat(c, '.') OVER (win1 ORDER BY c)
FROM t1
WINDOW win1 AS (PARTITION BY b)
} {four four.six four.six.two five five.one five.one.three}
do_execsql_test 17.3.3 {
SELECT group_concat(c, '.') OVER win2
FROM t1
WINDOW win1 AS (PARTITION BY b),
win2 AS (win1 ORDER BY c)
} {four four.six four.six.two five five.one five.one.three}
do_execsql_test 17.3.4 {
SELECT group_concat(c, '.') OVER (win2)
FROM t1
WINDOW win1 AS (PARTITION BY b),
win2 AS (win1 ORDER BY c)
} {four four.six four.six.two five five.one five.one.three}
do_execsql_test 17.3.5 {
SELECT group_concat(c, '.') OVER win5
FROM t1
WINDOW win1 AS (PARTITION BY b),
win2 AS (win1),
win3 AS (win2),
win4 AS (win3),
win5 AS (win4 ORDER BY c)
} {four four.six four.six.two five five.one five.one.three}
finish_test