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# 2018 May 8
#
# The author disclaims copyright to this source code. In place of
# a legal notice, here is a blessing:
#
# May you do good and not evil.
# May you find forgiveness for yourself and forgive others.
# May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library. Specifically,
# it tests the sqlite3_create_window_function() API.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix window6
ifcapable !windowfunc {
finish_test
return
}
set setup {
CREATE TABLE %t1(%x, %y %typename);
INSERT INTO %t1 VALUES(1, 'a');
INSERT INTO %t1 VALUES(2, 'b');
INSERT INTO %t1 VALUES(3, 'c');
INSERT INTO %t1 VALUES(4, 'd');
INSERT INTO %t1 VALUES(5, 'e');
}
foreach {tn vars} {
1 {}
2 { set A(%t1) over }
3 { set A(%x) over }
4 {
set A(%alias) over
set A(%x) following
set A(%y) over
}
5 {
set A(%t1) over
set A(%x) following
set A(%y) preceding
set A(%w) current
set A(%alias) filter
set A(%typename) window
}
6 {
set A(%x) window
}
} {
set A(%t1) t1
set A(%x) x
set A(%y) y
set A(%w) w
set A(%alias) alias
set A(%typename) integer
eval $vars
set MAP [array get A]
set setup_sql [string map $MAP $setup]
reset_db
execsql $setup_sql
do_execsql_test 1.$tn.1 [string map $MAP {
SELECT group_concat(%x, '.') OVER (ORDER BY %y) FROM %t1
}] {1 1.2 1.2.3 1.2.3.4 1.2.3.4.5}
do_execsql_test 1.$tn.2 [string map $MAP {
SELECT sum(%x) OVER %w FROM %t1 WINDOW %w AS (ORDER BY %y)
}] {1 3 6 10 15}
do_execsql_test 1.$tn.3 [string map $MAP {
SELECT sum(%alias.%x) OVER %w FROM %t1 %alias WINDOW %w AS (ORDER BY %y)
}] {1 3 6 10 15}
do_execsql_test 1.$tn.4 [string map $MAP {
SELECT sum(%x) %alias FROM %t1
}] {15}
}
proc winproc {args} { return "window: $args" }
db func window winproc
do_execsql_test 2.0 {
SELECT window('hello world');
} {{window: {hello world}}}
proc wincmp {a b} { string compare $b $a }
db collate window wincmp
do_execsql_test 3.0 {
CREATE TABLE window(x COLLATE window);
INSERT INTO window VALUES('bob'), ('alice'), ('cate');
SELECT * FROM window ORDER BY x COLLATE window;
} {cate bob alice}
do_execsql_test 3.1 {
DROP TABLE window;
CREATE TABLE x1(x);
INSERT INTO x1 VALUES('bob'), ('alice'), ('cate');
CREATE INDEX window ON x1(x COLLATE window);
SELECT * FROM x1 ORDER BY x COLLATE window;
} {cate bob alice}
do_execsql_test 4.0 { CREATE TABLE t4(x, y); }
# do_execsql_test 4.1 { PRAGMA parser_trace = 1 }
do_execsql_test 4.1 {
SELECT * FROM t4 window, t4;
}
#-------------------------------------------------------------------------
reset_db
do_execsql_test 5.0 {
CREATE TABLE over(x, over);
CREATE TABLE window(x, window);
INSERT INTO over VALUES(1, 2), (3, 4), (5, 6);
INSERT INTO window VALUES(1, 2), (3, 4), (5, 6);
SELECT sum(x) over FROM over
} {9}
do_execsql_test 5.1 {
SELECT sum(x) over over FROM over WINDOW over AS ()
} {9 9 9}
do_execsql_test 5.2 {
SELECT sum(over) over over over FROM over over WINDOW over AS (ORDER BY over)
} {2 6 12}
do_execsql_test 5.3 {
SELECT sum(over) over over over FROM over over WINDOW over AS (ORDER BY over);
} {2 6 12}
do_execsql_test 5.4 {
SELECT sum(window) OVER window window FROM window window window window AS (ORDER BY window);
} {2 6 12}
do_execsql_test 5.5 {
SELECT count(*) OVER win FROM over
WINDOW win AS (ORDER BY x ROWS BETWEEN +2 FOLLOWING AND +3 FOLLOWING)
} {1 0 0}
#-------------------------------------------------------------------------
#
ifcapable !icu {
do_execsql_test 6.0 {
SELECT LIKE('!', '', '!') x WHERE x;
} {}
do_execsql_test 6.1 {
SELECT LIKE("!","","!")""WHeRE"";
} {}
do_catchsql_test 6.2 {
SELECT LIKE("!","","!")""window"";
} {1 {near "window": syntax error}}
}
reset_db
do_execsql_test 7.0 {
CREATE TABLE t1(x TEXT);
CREATE INDEX i1 ON t1(x COLLATE nocase);
INSERT INTO t1 VALUES('');
}
ifcapable !icu {
do_execsql_test 7.1 {
SELECT count(*) FROM t1 WHERE x LIKE '!' ESCAPE '!';
} {0}
}
#-------------------------------------------------------------------------
#
do_execsql_test 8.0 {
CREATE TABLE IF NOT EXISTS "sample" (
"id" INTEGER NOT NULL PRIMARY KEY,
"counter" INTEGER NOT NULL,
"value" REAL NOT NULL
);
INSERT INTO "sample" (counter, value)
VALUES (1, 10.), (1, 20.), (2, 1.), (2, 3.), (3, 100.);
}
do_execsql_test 8.1 {
SELECT "counter", "value", RANK() OVER w AS "rank"
FROM "sample"
WINDOW w AS (PARTITION BY "counter" ORDER BY "value" DESC)
ORDER BY "counter", RANK() OVER w
} {
1 20.0 1 1 10.0 2 2 3.0 1 2 1.0 2 3 100.0 1
}
do_execsql_test 8.2 {
SELECT "counter", "value", SUM("value") OVER
(ORDER BY "id" ROWS 2 PRECEDING)
FROM "sample"
ORDER BY "id"
} {
1 10.0 10.0 1 20.0 30.0 2 1.0 31.0 2 3.0 24.0 3 100.0 104.0
}
do_execsql_test 8.3 {
SELECT SUM("value") OVER
(ORDER BY "id" ROWS BETWEEN 2 PRECEDING AND CURRENT ROW)
FROM "sample"
ORDER BY "id"
} {
10.0 30.0 31.0 24.0 104.0
}
do_execsql_test 9.0 {
WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
SELECT x, group_concat(x) OVER (ORDER BY x ROWS 2 PRECEDING)
FROM c;
} {
1 1 2 1,2 3 1,2,3 4 2,3,4 5 3,4,5
}
do_catchsql_test 9.1 {
WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
SELECT x, group_concat(x) OVER (ORDER BY x RANGE 2 PRECEDING)
FROM c;
} {1 {RANGE must use only UNBOUNDED or CURRENT ROW}}
do_catchsql_test 9.2 {
WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
SELECT x, group_concat(x) OVER (ORDER BY x RANGE BETWEEN UNBOUNDED PRECEDING AND 2 FOLLOWING)
FROM c;
} {1 {RANGE must use only UNBOUNDED or CURRENT ROW}}
do_catchsql_test 9.3 {
WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
SELECT count(DISTINCT x) OVER (ORDER BY x) FROM c;
} {1 {DISTINCT is not supported for window functions}}
do_catchsql_test 9.4 {
WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
SELECT count() OVER (ORDER BY x RANGE UNBOUNDED FOLLOWING) FROM c;
} {1 {near "FOLLOWING": syntax error}}
do_catchsql_test 9.5 {
WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
SELECT count() OVER (ORDER BY x RANGE BETWEEN UNBOUNDED FOLLOWING AND UNBOUNDED FOLLOWING) FROM c;
} {1 {near "FOLLOWING": syntax error}}
do_catchsql_test 9.6 {
WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
SELECT count() OVER (ORDER BY x RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED PRECEDING) FROM c;
} {1 {near "PRECEDING": syntax error}}
foreach {tn frame} {
1 "BETWEEN CURRENT ROW AND 4 PRECEDING"
2 "4 FOLLOWING"
3 "BETWEEN 4 FOLLOWING AND CURRENT ROW"
4 "BETWEEN 4 FOLLOWING AND 2 PRECEDING"
} {
do_catchsql_test 9.7.$tn "
WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
SELECT count() OVER (
ORDER BY x ROWS $frame
) FROM c;
" {1 {unsupported frame delimiter for ROWS}}
}
do_catchsql_test 9.8.1 {
WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
SELECT count() OVER (
ORDER BY x ROWS BETWEEN a PRECEDING AND 2 FOLLOWING
) FROM c;
} {1 {frame starting offset must be a non-negative integer}}
do_catchsql_test 9.8.2 {
WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
SELECT count() OVER (
ORDER BY x ROWS BETWEEN 2 PRECEDING AND a FOLLOWING
) FROM c;
} {1 {frame ending offset must be a non-negative integer}}
do_execsql_test 10.0 {
WITH t1(a,b) AS (VALUES(1,2))
SELECT count() FILTER (where b<>5) OVER w1
FROM t1
WINDOW w1 AS (ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING);
} {1}
foreach {tn stmt} {
1 "SELECT nth_value(b, 0) OVER (ORDER BY a) FROM t1"
2 "SELECT nth_value(b, -1) OVER (ORDER BY a) FROM t1"
3 "SELECT nth_value(b, '4ab') OVER (ORDER BY a) FROM t1"
4 "SELECT nth_value(b, NULL) OVER (ORDER BY a) FROM t1"
5 "SELECT nth_value(b, 8.5) OVER (ORDER BY a) FROM t1"
} {
do_catchsql_test 10.1.$tn "
WITH t1(a,b) AS ( VALUES(1, 2), (2, 3), (3, 4) )
$stmt
" {1 {second argument to nth_value must be a positive integer}}
}
foreach {tn stmt res} {
1 "SELECT nth_value(b, 1) OVER (ORDER BY a) FROM t1" {2 2 2}
2 "SELECT nth_value(b, 2) OVER (ORDER BY a) FROM t1" {{} 3 3}
3 "SELECT nth_value(b, '2') OVER (ORDER BY a) FROM t1" {{} 3 3}
4 "SELECT nth_value(b, 2.0) OVER (ORDER BY a) FROM t1" {{} 3 3}
5 "SELECT nth_value(b, '2.0') OVER (ORDER BY a) FROM t1" {{} 3 3}
6 "SELECT nth_value(b, 10000000) OVER (ORDER BY a) FROM t1" {{} {} {}}
} {
do_execsql_test 10.2.$tn "
WITH t1(a,b) AS ( VALUES(1, 2), (2, 3), (3, 4) )
$stmt
" $res
}
#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 11.0 {
CREATE TABLE t1(a INT);
INSERT INTO t1 VALUES(10),(15),(20),(20),(25),(30),(30),(50);
CREATE TABLE t3(x INT, y VARCHAR);
INSERT INTO t3(x,y) VALUES(10,'ten'),('15','fifteen'),(30,'thirty');
}
do_execsql_test 11.1 {
SELECT a, (SELECT y FROM t3 WHERE x=a) FROM t1 ORDER BY a;
} {
10 ten 15 fifteen 20 {} 20 {} 25 {} 30 thirty 30 thirty 50 {}
}
do_execsql_test 11.2 {
SELECT a, (SELECT y FROM t3 WHERE x=a), sum(a) OVER (ORDER BY a)
FROM t1 ORDER BY a;
} {
10 ten 10 15 fifteen 25 20 {} 65 20 {} 65
25 {} 90 30 thirty 150 30 thirty 150 50 {} 200
}
finish_test