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Additional tests of the new flattener added. Ticket #272. (CVS 949)

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FossilOrigin-Name: 8d9ee45ab487614191e8d6aef845141fdddf832a
This commit is contained in:
drh 2003-05-02 16:44:25 +00:00
parent c31c2eb82c
commit e9ffc168d8
3 changed files with 81 additions and 8 deletions
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12
manifest
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@ -1,5 +1,5 @@
C Enhance\sthe\squery\sflattener\sto\shandle\ssubqueries\sthat\sare\sjoins.\nAll\sregressions\spass\sbut\snew\stests\sneed\sto\sbe\sadded\sbefore\srelease.\nTicket\s#272.\s(CVS\s948)
D 2003-05-02T16:04:17
C Additional\stests\sof\sthe\snew\sflattener\sadded.\s\sTicket\s#272.\s(CVS\s949)
D 2003-05-02T16:44:25
F Makefile.in 004acec253ecdde985c8ecd5b7c9accdb210378f
F Makefile.linux-gcc b86a99c493a5bfb402d1d9178dcdc4bd4b32f906
F README f1de682fbbd94899d50aca13d387d1b3fd3be2dd
@ -110,7 +110,7 @@ F test/select2.test aceea74fd895b9d007512f72499db589735bd8e4
F test/select3.test 445a1a3dde4e2fd32541b311f55da5e2f8079d76
F test/select4.test e7e9a32fa745246cb99fadbeb63af4843a17925b
F test/select5.test c2a6c4a003316ee42cbbd689eebef8fdce0db2ac
F test/select6.test efb8d0c07a440441db87db2c4ade6904e1407e85
F test/select6.test 670026a06c358cc867ace7b1de6020e43adc7245
F test/sort.test ba07b107c16070208e6aab3cadea66ba079d85ba
F test/subselect.test f0fea8cf9f386d416d64d152e3c65f9116d0f50f
F test/table.test 371a1fc1c470982b2f68f9732f903a5d96f949c4
@ -165,7 +165,7 @@ F www/speed.tcl cb4c10a722614aea76d2c51f32ee43400d5951be
F www/sqlite.tcl ae3dcfb077e53833b59d4fcc94d8a12c50a44098
F www/tclsqlite.tcl 1db15abeb446aad0caf0b95b8b9579720e4ea331
F www/vdbe.tcl 2013852c27a02a091d39a766bc87cff329f21218
P be7aed2011b4af868b6a0c370c3d41354ae0cdf4
R ed36fbd16d08ea65dbe969ae9a7bbf4c
P ad57693e9f1b83a8cc4d028264b35018a9a4a701
R 0c892dfdfe33ba9930d105338a5e3731
U drh
Z 80e0fdd6a1502d3a16e3bb09c6a28adb
Z ba7386fd2621411a19fd3dce98cc1a19

2
manifest.uuid
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@ -1 +1 @@
ad57693e9f1b83a8cc4d028264b35018a9a4a701
8d9ee45ab487614191e8d6aef845141fdddf832a

75
test/select6.test
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@ -12,7 +12,7 @@
# focus of this file is testing SELECT statements that contain
# subqueries in their FROM clause.
#
# $Id: select6.test,v 1.9 2002/04/30 19:20:29 drh Exp $
# $Id: select6.test,v 1.10 2003/05/02 16:44:25 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
@ -359,4 +359,77 @@ do_test select6-7.4 {
}
} {c abc b 2 a 1 a 1 b 2 c abc}
# The following procedure compiles the SQL given as an argument and returns
# TRUE if that SQL uses any transient tables and returns FALSE if no
# transient tables are used. This is used to make sure that the
# sqliteFlattenSubquery() routine in select.c is doing its job.
#
proc is_flat {sql} {
return [expr 0>[lsearch [execsql "EXPLAIN $sql"] OpenTemp]]
}
# Check that the flattener works correctly for deeply nested subqueries
# involving joins.
#
do_test select6-8.1 {
execsql {
BEGIN;
CREATE TABLE t3(p,q);
INSERT INTO t3 VALUES(1,11);
INSERT INTO t3 VALUES(2,22);
CREATE TABLE t4(q,r);
INSERT INTO t4 VALUES(11,111);
INSERT INTO t4 VALUES(22,222);
COMMIT;
SELECT * FROM t3 NATURAL JOIN t4;
}
} {1 11 111 2 22 222}
do_test select6-8.2 {
execsql {
SELECT y, p, q, r FROM
(SELECT t1.y AS y, t2.b AS b FROM t1, t2 WHERE t1.x=t2.a) AS m,
(SELECT t3.p AS p, t3.q AS q, t4.r AS r FROM t3 NATURAL JOIN t4) as n
WHERE y=p
}
} {1 1 11 111 2 2 22 222 2 2 22 222}
do_test select6-8.3 {
is_flat {
SELECT y, p, q, r FROM
(SELECT t1.y AS y, t2.b AS b FROM t1, t2 WHERE t1.x=t2.a) AS m,
(SELECT t3.p AS p, t3.q AS q, t4.r AS r FROM t3 NATURAL JOIN t4) as n
WHERE y=p
}
} {1}
do_test select6-8.4 {
execsql {
SELECT DISTINCT y, p, q, r FROM
(SELECT t1.y AS y, t2.b AS b FROM t1, t2 WHERE t1.x=t2.a) AS m,
(SELECT t3.p AS p, t3.q AS q, t4.r AS r FROM t3 NATURAL JOIN t4) as n
WHERE y=p
}
} {1 1 11 111 2 2 22 222}
do_test select6-8.5 {
execsql {
SELECT * FROM
(SELECT y, p, q, r FROM
(SELECT t1.y AS y, t2.b AS b FROM t1, t2 WHERE t1.x=t2.a) AS m,
(SELECT t3.p AS p, t3.q AS q, t4.r AS r FROM t3 NATURAL JOIN t4) as n
WHERE y=p) AS e,
(SELECT r AS z FROM t4 WHERE q=11) AS f
WHERE e.r=f.z
}
} {1 1 11 111 111}
do_test select6-8.6 {
is_flat {
SELECT * FROM
(SELECT y, p, q, r FROM
(SELECT t1.y AS y, t2.b AS b FROM t1, t2 WHERE t1.x=t2.a) AS m,
(SELECT t3.p AS p, t3.q AS q, t4.r AS r FROM t3 NATURAL JOIN t4) as n
WHERE y=p) AS e,
(SELECT r AS z FROM t4 WHERE q=11) AS f
WHERE e.r=f.z
}
} {1}
finish_test