# 2012 August 23

#

# 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.

#

# This file implements tests for processing aggregate queries with

# subqueries in which the subqueries hold the aggregate functions

# or in which the subqueries are themselves aggregate queries

#

set testdir [file dirname $argv0]

source $testdir/tester.tcl

do_test aggnested-1.1 {

db eval {

CREATE TABLE t1(a1 INTEGER);

INSERT INTO t1 VALUES(1), (2), (3);

CREATE TABLE t2(b1 INTEGER);

INSERT INTO t2 VALUES(4), (5);

SELECT (SELECT group_concat(a1,'x') FROM t2) FROM t1;

}

} {1x2x3}

do_test aggnested-1.2 {

db eval {

SELECT

(SELECT group_concat(a1,'x') || '-' || group_concat(b1,'y') FROM t2)

FROM t1;

}

} {1x2x3-4y5}

do_test aggnested-1.3 {

db eval {

SELECT (SELECT group_concat(b1,a1) FROM t2) FROM t1;

}

} {415 425 435}

do_test aggnested-1.4 {

db eval {

SELECT (SELECT group_concat(a1,b1) FROM t2) FROM t1;

}

} {151 252 353}

# This test case is a copy of the one in

# http://www.mail-archive.com/sqlite-users@sqlite.org/msg70787.html

#

do_test aggnested-2.0 {

sqlite3 db2 :memory:

db2 eval {

CREATE TABLE t1 (A1 INTEGER NOT NULL,A2 INTEGER NOT NULL,A3 INTEGER NOT

NULL,A4 INTEGER NOT NULL,PRIMARY KEY(A1));

REPLACE INTO t1 VALUES(1,11,111,1111);

REPLACE INTO t1 VALUES(2,22,222,2222);

REPLACE INTO t1 VALUES(3,33,333,3333);

CREATE TABLE t2 (B1 INTEGER NOT NULL,B2 INTEGER NOT NULL,B3 INTEGER NOT

NULL,B4 INTEGER NOT NULL,PRIMARY KEY(B1));

REPLACE INTO t2 VALUES(1,88,888,8888);

REPLACE INTO t2 VALUES(2,99,999,9999);

SELECT (SELECT GROUP_CONCAT(CASE WHEN a1=1 THEN'A' ELSE 'B' END) FROM t2),

t1.*

FROM t1;

}

} {A,B,B 3 33 333 3333}

db2 close

##################### Test cases for ticket [bfbf38e5e9956ac69f] ############

#

# This first test case is the original problem report:

do_test aggnested-3.0 {

db eval {

CREATE TABLE AAA (

aaa_id INTEGER PRIMARY KEY AUTOINCREMENT

);

CREATE TABLE RRR (

rrr_id INTEGER PRIMARY KEY AUTOINCREMENT,

rrr_date INTEGER NOT NULL,

rrr_aaa INTEGER

);

CREATE TABLE TTT (

ttt_id INTEGER PRIMARY KEY AUTOINCREMENT,

target_aaa INTEGER NOT NULL,

source_aaa INTEGER NOT NULL

);

insert into AAA (aaa_id) values (2);

insert into TTT (ttt_id, target_aaa, source_aaa)

values (4469, 2, 2);

insert into TTT (ttt_id, target_aaa, source_aaa)

values (4476, 2, 1);

insert into RRR (rrr_id, rrr_date, rrr_aaa)

values (0, 0, NULL);

insert into RRR (rrr_id, rrr_date, rrr_aaa)

values (2, 4312, 2);

SELECT i.aaa_id,

(SELECT sum(CASE WHEN (t.source_aaa == i.aaa_id) THEN 1 ELSE 0 END)

FROM TTT t

) AS segfault

FROM

(SELECT curr.rrr_aaa as aaa_id

FROM RRR curr

-- you also can comment out the next line

-- it causes segfault to happen after one row is outputted

INNER JOIN AAA a ON (curr.rrr_aaa = aaa_id)

LEFT JOIN RRR r ON (r.rrr_id <> 0 AND r.rrr_date < curr.rrr_date)

GROUP BY curr.rrr_id

HAVING r.rrr_date IS NULL

) i;

}

} {2 1}

# Further variants of the test case, as found in the ticket

#

do_test aggnested-3.1 {

db eval {

DROP TABLE IF EXISTS t1;

DROP TABLE IF EXISTS t2;

CREATE TABLE t1 (

id1 INTEGER PRIMARY KEY AUTOINCREMENT,

value1 INTEGER

);

INSERT INTO t1 VALUES(4469,2),(4476,1);

CREATE TABLE t2 (

id2 INTEGER PRIMARY KEY AUTOINCREMENT,

value2 INTEGER

);

INSERT INTO t2 VALUES(0,1),(2,2);

SELECT

(SELECT sum(value2==xyz) FROM t2)

FROM

(SELECT curr.value1 as xyz

FROM t1 AS curr LEFT JOIN t1 AS other

GROUP BY curr.id1);

}

} {1 1}

do_test aggnested-3.2 {

db eval {

DROP TABLE IF EXISTS t1;

DROP TABLE IF EXISTS t2;

CREATE TABLE t1 (

id1 INTEGER,

value1 INTEGER,

x1 INTEGER

);

INSERT INTO t1 VALUES(4469,2,98),(4469,1,99),(4469,3,97);

CREATE TABLE t2 (

value2 INTEGER

);

INSERT INTO t2 VALUES(1);

SELECT

(SELECT sum(value2==xyz) FROM t2)

FROM

(SELECT value1 as xyz, max(x1) AS pqr

FROM t1

GROUP BY id1);

}

} {0}

do_test aggnested-3.3 {

db eval {

DROP TABLE IF EXISTS t1;

DROP TABLE IF EXISTS t2;

CREATE TABLE t1(id1, value1);

INSERT INTO t1 VALUES(4469,2),(4469,1);

CREATE TABLE t2 (value2);

INSERT INTO t2 VALUES(1);

SELECT (SELECT sum(value2=value1) FROM t2), max(value1)

FROM t1

GROUP BY id1;

}

} {0 2}

# A batch of queries all doing approximately the same operation involving

# two nested aggregate queries.

#

do_test aggnested-3.11 {

db eval {

DROP TABLE IF EXISTS t1;

DROP TABLE IF EXISTS t2;

CREATE TABLE t1(id1, value1);

INSERT INTO t1 VALUES(4469,12),(4469,11),(4470,34);

CREATE INDEX t1id1 ON t1(id1);

CREATE TABLE t2 (value2);

INSERT INTO t2 VALUES(12),(34),(34);

INSERT INTO t2 SELECT value2 FROM t2;

SELECT max(value1), (SELECT count(*) FROM t2 WHERE value2=max(value1))

FROM t1

GROUP BY id1;

}

} {12 2 34 4}

do_test aggnested-3.12 {

db eval {

SELECT max(value1), (SELECT count(*) FROM t2 WHERE value2=value1)

FROM t1

GROUP BY id1;

}

} {12 2 34 4}

do_test aggnested-3.13 {

db eval {

SELECT value1, (SELECT sum(value2=value1) FROM t2)

FROM t1;

}

} {12 2 11 0 34 4}

do_test aggnested-3.14 {

db eval {

SELECT value1, (SELECT sum(value2=value1) FROM t2)

FROM t1

WHERE value1 IN (SELECT max(value1) FROM t1 GROUP BY id1);

}

} {12 2 34 4}

do_test aggnested-3.15 {

# FIXME: If case 3.16 works, then this case really ought to work too...

catchsql {

SELECT max(value1), (SELECT sum(value2=max(value1)) FROM t2)

FROM t1

GROUP BY id1;

}

} {1 {misuse of aggregate function max()}}

do_test aggnested-3.16 {

db eval {

SELECT max(value1), (SELECT sum(value2=value1) FROM t2)

FROM t1

GROUP BY id1;

}

} {12 2 34 4}

finish_test