532 lines
15 KiB
Plaintext
532 lines
15 KiB
Plaintext
# 2012 Sept 27
|
|
#
|
|
# 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. The
|
|
# focus of this file is testing that the optimizations that disable
|
|
# ORDER BY clauses when the natural order of a query is correct.
|
|
#
|
|
|
|
|
|
set testdir [file dirname $argv0]
|
|
source $testdir/tester.tcl
|
|
set ::testprefix orderby1
|
|
|
|
# Generate test data for a join. Verify that the join gets the
|
|
# correct answer.
|
|
#
|
|
do_test 1.0 {
|
|
db eval {
|
|
BEGIN;
|
|
CREATE TABLE album(
|
|
aid INTEGER PRIMARY KEY,
|
|
title TEXT UNIQUE NOT NULL
|
|
);
|
|
CREATE TABLE track(
|
|
tid INTEGER PRIMARY KEY,
|
|
aid INTEGER NOT NULL REFERENCES album,
|
|
tn INTEGER NOT NULL,
|
|
name TEXT,
|
|
UNIQUE(aid, tn)
|
|
);
|
|
INSERT INTO album VALUES(1, '1-one'), (2, '2-two'), (3, '3-three');
|
|
INSERT INTO track VALUES
|
|
(NULL, 1, 1, 'one-a'),
|
|
(NULL, 2, 2, 'two-b'),
|
|
(NULL, 3, 3, 'three-c'),
|
|
(NULL, 1, 3, 'one-c'),
|
|
(NULL, 2, 1, 'two-a'),
|
|
(NULL, 3, 1, 'three-a');
|
|
COMMIT;
|
|
}
|
|
} {}
|
|
do_test 1.1a {
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn
|
|
}
|
|
} {one-a one-c two-a two-b three-a three-c}
|
|
|
|
# Verify that the ORDER BY clause is optimized out
|
|
#
|
|
do_test 1.1b {
|
|
db eval {
|
|
EXPLAIN QUERY PLAN
|
|
SELECT name FROM album CROSS JOIN track USING (aid) ORDER BY title, tn
|
|
}
|
|
} {~/ORDER BY/} ;# ORDER BY optimized out
|
|
|
|
# The same query with ORDER BY clause optimization disabled via + operators
|
|
# should give exactly the same answer.
|
|
#
|
|
do_test 1.2a {
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY +title, +tn
|
|
}
|
|
} {one-a one-c two-a two-b three-a three-c}
|
|
|
|
# The output is sorted manually in this case.
|
|
#
|
|
do_test 1.2b {
|
|
db eval {
|
|
EXPLAIN QUERY PLAN
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY +title, +tn
|
|
}
|
|
} {/ORDER BY/} ;# separate sorting pass due to "+" on ORDER BY terms
|
|
|
|
# The same query with ORDER BY optimizations turned off via built-in test.
|
|
#
|
|
do_test 1.3a {
|
|
optimization_control db order-by-idx-join 0
|
|
db cache flush
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn
|
|
}
|
|
} {one-a one-c two-a two-b three-a three-c}
|
|
do_test 1.3b {
|
|
db eval {
|
|
EXPLAIN QUERY PLAN
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn
|
|
}
|
|
} {/ORDER BY/} ;# separate sorting pass due to disabled optimization
|
|
optimization_control db all 1
|
|
db cache flush
|
|
|
|
# Reverse order sorts
|
|
#
|
|
do_test 1.4a {
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title DESC, tn
|
|
}
|
|
} {three-a three-c two-a two-b one-a one-c}
|
|
do_test 1.4b {
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY +title DESC, +tn
|
|
}
|
|
} {three-a three-c two-a two-b one-a one-c} ;# verify same order after sorting
|
|
do_test 1.4c {
|
|
db eval {
|
|
EXPLAIN QUERY PLAN
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title DESC, tn
|
|
}
|
|
} {~/ORDER BY/} ;# ORDER BY suppressed due to uniqueness constraints
|
|
|
|
do_test 1.5a {
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn DESC
|
|
}
|
|
} {one-c one-a two-b two-a three-c three-a}
|
|
do_test 1.5b {
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY +title, +tn DESC
|
|
}
|
|
} {one-c one-a two-b two-a three-c three-a} ;# verify same order after sorting
|
|
do_test 1.5c {
|
|
db eval {
|
|
EXPLAIN QUERY PLAN
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn DESC
|
|
}
|
|
} {~/ORDER BY/} ;# ORDER BY suppressed due to uniqueness constraints
|
|
|
|
do_test 1.6a {
|
|
db eval {
|
|
SELECT name FROM album CROSS JOIN track USING (aid)
|
|
ORDER BY title DESC, tn DESC
|
|
}
|
|
} {three-c three-a two-b two-a one-c one-a}
|
|
do_test 1.6b {
|
|
db eval {
|
|
SELECT name FROM album CROSS JOIN track USING (aid)
|
|
ORDER BY +title DESC, +tn DESC
|
|
}
|
|
} {three-c three-a two-b two-a one-c one-a} ;# verify same order after sorting
|
|
do_test 1.6c {
|
|
db eval {
|
|
EXPLAIN QUERY PLAN
|
|
SELECT name FROM album CROSS JOIN track USING (aid)
|
|
ORDER BY title DESC, tn DESC
|
|
}
|
|
} {~/ORDER BY/} ;# ORDER BY
|
|
|
|
|
|
# Reconstruct the test data to use indices rather than integer primary keys.
|
|
#
|
|
do_test 2.0 {
|
|
db eval {
|
|
BEGIN;
|
|
DROP TABLE album;
|
|
DROP TABLE track;
|
|
CREATE TABLE album(
|
|
aid INT PRIMARY KEY,
|
|
title TEXT NOT NULL
|
|
);
|
|
CREATE INDEX album_i1 ON album(title, aid);
|
|
CREATE TABLE track(
|
|
aid INTEGER NOT NULL REFERENCES album,
|
|
tn INTEGER NOT NULL,
|
|
name TEXT,
|
|
UNIQUE(aid, tn)
|
|
);
|
|
INSERT INTO album VALUES(1, '1-one'), (20, '2-two'), (3, '3-three');
|
|
INSERT INTO track VALUES
|
|
(1, 1, 'one-a'),
|
|
(20, 2, 'two-b'),
|
|
(3, 3, 'three-c'),
|
|
(1, 3, 'one-c'),
|
|
(20, 1, 'two-a'),
|
|
(3, 1, 'three-a');
|
|
COMMIT;
|
|
}
|
|
} {}
|
|
do_test 2.1a {
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn
|
|
}
|
|
} {one-a one-c two-a two-b three-a three-c}
|
|
|
|
# Verify that the ORDER BY clause is optimized out
|
|
#
|
|
do_test 2.1b {
|
|
db eval {
|
|
EXPLAIN QUERY PLAN
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn
|
|
}
|
|
} {/ORDER BY/} ;# ORDER BY required because of missing aid term in ORDER BY
|
|
|
|
do_test 2.1c {
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title, aid, tn
|
|
}
|
|
} {one-a one-c two-a two-b three-a three-c}
|
|
do_test 2.1d {
|
|
db eval {
|
|
EXPLAIN QUERY PLAN
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title, aid, tn
|
|
}
|
|
} {/ORDER BY/} ;# ORDER BY required in this case
|
|
|
|
# The same query with ORDER BY clause optimization disabled via + operators
|
|
# should give exactly the same answer.
|
|
#
|
|
do_test 2.2a {
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY +title, +tn
|
|
}
|
|
} {one-a one-c two-a two-b three-a three-c}
|
|
|
|
# The output is sorted manually in this case.
|
|
#
|
|
do_test 2.2b {
|
|
db eval {
|
|
EXPLAIN QUERY PLAN
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY +title, +tn
|
|
}
|
|
} {/ORDER BY/} ;# separate sorting pass due to "+" on ORDER BY terms
|
|
|
|
# The same query with ORDER BY optimizations turned off via built-in test.
|
|
#
|
|
do_test 2.3a {
|
|
optimization_control db order-by-idx-join 0
|
|
db cache flush
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn
|
|
}
|
|
} {one-a one-c two-a two-b three-a three-c}
|
|
do_test 2.3b {
|
|
db eval {
|
|
EXPLAIN QUERY PLAN
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn
|
|
}
|
|
} {/ORDER BY/} ;# separate sorting pass due to disabled optimization
|
|
optimization_control db all 1
|
|
db cache flush
|
|
|
|
# Reverse order sorts
|
|
#
|
|
do_test 2.4a {
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title DESC, tn
|
|
}
|
|
} {three-a three-c two-a two-b one-a one-c}
|
|
do_test 2.4b {
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY +title DESC, +tn
|
|
}
|
|
} {three-a three-c two-a two-b one-a one-c} ;# verify same order after sorting
|
|
do_test 2.4c {
|
|
db eval {
|
|
EXPLAIN QUERY PLAN
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title DESC, tn
|
|
}
|
|
} {/ORDER BY/} ;# separate sorting pass due to mixed DESC/ASC
|
|
|
|
|
|
do_test 2.5a {
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn DESC
|
|
}
|
|
} {one-c one-a two-b two-a three-c three-a}
|
|
do_test 2.5b {
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY +title, +tn DESC
|
|
}
|
|
} {one-c one-a two-b two-a three-c three-a} ;# verify same order after sorting
|
|
do_test 2.5c {
|
|
db eval {
|
|
EXPLAIN QUERY PLAN
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn DESC
|
|
}
|
|
} {/ORDER BY/} ;# separate sorting pass due to mixed ASC/DESC
|
|
|
|
do_test 2.6a {
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title DESC, tn DESC
|
|
}
|
|
} {three-c three-a two-b two-a one-c one-a}
|
|
do_test 2.6b {
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY +title DESC, +tn DESC
|
|
}
|
|
} {three-c three-a two-b two-a one-c one-a} ;# verify same order after sorting
|
|
do_test 2.6c {
|
|
db eval {
|
|
EXPLAIN QUERY PLAN
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title DESC, tn DESC
|
|
}
|
|
} {/ORDER BY/} ;# ORDER BY required
|
|
|
|
|
|
# Generate another test dataset, but this time using mixed ASC/DESC indices.
|
|
#
|
|
do_test 3.0 {
|
|
db eval {
|
|
BEGIN;
|
|
DROP TABLE album;
|
|
DROP TABLE track;
|
|
CREATE TABLE album(
|
|
aid INTEGER PRIMARY KEY,
|
|
title TEXT UNIQUE NOT NULL
|
|
);
|
|
CREATE TABLE track(
|
|
tid INTEGER PRIMARY KEY,
|
|
aid INTEGER NOT NULL REFERENCES album,
|
|
tn INTEGER NOT NULL,
|
|
name TEXT,
|
|
UNIQUE(aid ASC, tn DESC)
|
|
);
|
|
INSERT INTO album VALUES(1, '1-one'), (2, '2-two'), (3, '3-three');
|
|
INSERT INTO track VALUES
|
|
(NULL, 1, 1, 'one-a'),
|
|
(NULL, 2, 2, 'two-b'),
|
|
(NULL, 3, 3, 'three-c'),
|
|
(NULL, 1, 3, 'one-c'),
|
|
(NULL, 2, 1, 'two-a'),
|
|
(NULL, 3, 1, 'three-a');
|
|
COMMIT;
|
|
}
|
|
} {}
|
|
do_test 3.1a {
|
|
db eval {
|
|
SELECT name FROM album CROSS JOIN track USING (aid) ORDER BY title, tn DESC
|
|
}
|
|
} {one-c one-a two-b two-a three-c three-a}
|
|
|
|
# Verify that the ORDER BY clause is optimized out
|
|
#
|
|
do_test 3.1b {
|
|
db eval {
|
|
EXPLAIN QUERY PLAN
|
|
SELECT name FROM album CROSS JOIN track USING (aid) ORDER BY title, tn DESC
|
|
}
|
|
} {~/ORDER BY/} ;# ORDER BY optimized out
|
|
|
|
# The same query with ORDER BY clause optimization disabled via + operators
|
|
# should give exactly the same answer.
|
|
#
|
|
do_test 3.2a {
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY +title, +tn DESC
|
|
}
|
|
} {one-c one-a two-b two-a three-c three-a}
|
|
|
|
# The output is sorted manually in this case.
|
|
#
|
|
do_test 3.2b {
|
|
db eval {
|
|
EXPLAIN QUERY PLAN
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY +title, +tn DESC
|
|
}
|
|
} {/ORDER BY/} ;# separate sorting pass due to "+" on ORDER BY terms
|
|
|
|
# The same query with ORDER BY optimizations turned off via built-in test.
|
|
#
|
|
do_test 3.3a {
|
|
optimization_control db order-by-idx-join 0
|
|
db cache flush
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn DESC
|
|
}
|
|
} {one-c one-a two-b two-a three-c three-a}
|
|
do_test 3.3b {
|
|
db eval {
|
|
EXPLAIN QUERY PLAN
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn DESC
|
|
}
|
|
} {/ORDER BY/} ;# separate sorting pass due to disabled optimization
|
|
optimization_control db all 1
|
|
db cache flush
|
|
|
|
# Without the mixed ASC/DESC on ORDER BY
|
|
#
|
|
do_test 3.4a {
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn
|
|
}
|
|
} {one-a one-c two-a two-b three-a three-c}
|
|
do_test 3.4b {
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY +title, +tn
|
|
}
|
|
} {one-a one-c two-a two-b three-a three-c} ;# verify same order after sorting
|
|
do_test 3.4c {
|
|
db eval {
|
|
EXPLAIN QUERY PLAN
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn
|
|
}
|
|
} {~/ORDER BY/} ;# ORDER BY suppressed by uniqueness constraints
|
|
|
|
do_test 3.5a {
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title DESC, tn DESC
|
|
}
|
|
} {three-c three-a two-b two-a one-c one-a}
|
|
do_test 3.5b {
|
|
db eval {
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY +title DESC, +tn DESC
|
|
}
|
|
} {three-c three-a two-b two-a one-c one-a} ;# verify same order after sorting
|
|
do_test 3.5c {
|
|
db eval {
|
|
EXPLAIN QUERY PLAN
|
|
SELECT name FROM album JOIN track USING (aid) ORDER BY title DESC, tn DESC
|
|
}
|
|
} {~/ORDER BY/} ;# ORDER BY suppressed by uniqueness constraints
|
|
|
|
|
|
do_test 3.6a {
|
|
db eval {
|
|
SELECT name FROM album CROSS JOIN track USING (aid) ORDER BY title DESC, tn
|
|
}
|
|
} {three-a three-c two-a two-b one-a one-c}
|
|
do_test 3.6b {
|
|
db eval {
|
|
SELECT name FROM album CROSS JOIN track USING (aid)
|
|
ORDER BY +title DESC, +tn
|
|
}
|
|
} {three-a three-c two-a two-b one-a one-c} ;# verify same order after sorting
|
|
do_test 3.6c {
|
|
db eval {
|
|
EXPLAIN QUERY PLAN
|
|
SELECT name FROM album CROSS JOIN track USING (aid) ORDER BY title DESC, tn
|
|
}
|
|
} {~/ORDER BY/} ;# inverted ASC/DESC is optimized out
|
|
|
|
# Ticket 5ed1772895bf3deeab78c5e3519b1da9165c541b (2013-06-04)
|
|
# Incorrect ORDER BY on an indexed JOIN
|
|
#
|
|
do_test 4.0 {
|
|
db eval {
|
|
CREATE TABLE t41(a INT UNIQUE NOT NULL, b INT NOT NULL);
|
|
CREATE INDEX t41ba ON t41(b,a);
|
|
CREATE TABLE t42(x INT NOT NULL REFERENCES t41(a), y INT NOT NULL);
|
|
CREATE UNIQUE INDEX t42xy ON t42(x,y);
|
|
INSERT INTO t41 VALUES(1,1),(3,1);
|
|
INSERT INTO t42 VALUES(1,13),(1,15),(3,14),(3,16);
|
|
|
|
SELECT b, y FROM t41 CROSS JOIN t42 ON x=a ORDER BY b, y;
|
|
}
|
|
} {1 13 1 14 1 15 1 16}
|
|
|
|
# No sorting of queries that omit the FROM clause.
|
|
#
|
|
do_execsql_test 5.0 {
|
|
EXPLAIN QUERY PLAN SELECT 5 ORDER BY 1
|
|
} {}
|
|
do_execsql_test 5.1 {
|
|
EXPLAIN QUERY PLAN SELECT 5 UNION ALL SELECT 3 ORDER BY 1
|
|
} {~/B-TREE/}
|
|
do_execsql_test 5.2 {
|
|
SELECT 5 UNION ALL SELECT 3 ORDER BY 1
|
|
} {3 5}
|
|
do_execsql_test 5.3 {
|
|
SELECT 986 AS x GROUP BY X ORDER BY X
|
|
} {986}
|
|
|
|
# The following test (originally derived from a single test within fuzz.test)
|
|
# verifies that a PseudoTable cursor is not closed prematurely in a deeply
|
|
# nested query. This test caused a segfault on 3.8.5 beta.
|
|
#
|
|
do_execsql_test 6.0 {
|
|
CREATE TABLE abc(a, b, c);
|
|
INSERT INTO abc VALUES(1, 2, 3);
|
|
INSERT INTO abc VALUES(4, 5, 6);
|
|
INSERT INTO abc VALUES(7, 8, 9);
|
|
SELECT (
|
|
SELECT 'hardware' FROM (
|
|
SELECT 'software' ORDER BY 'firmware' ASC, 'sportswear' DESC
|
|
) GROUP BY 1 HAVING length(b)
|
|
)
|
|
FROM abc;
|
|
} {hardware hardware hardware}
|
|
|
|
# Here is a test for a query-planner problem reported on the SQLite
|
|
# mailing list on 2014-09-18 by "Merike". Beginning with version 3.8.0,
|
|
# a separate sort was being used rather than using the single-column
|
|
# index. This was due to an oversight in the indexMightHelpWithOrderby()
|
|
# routine in where.c.
|
|
#
|
|
do_execsql_test 7.0 {
|
|
CREATE TABLE t7(a,b);
|
|
CREATE INDEX t7a ON t7(a);
|
|
CREATE INDEX t7ab ON t7(a,b);
|
|
EXPLAIN QUERY PLAN
|
|
SELECT * FROM t7 WHERE a=?1 ORDER BY rowid;
|
|
} {~/ORDER BY/}
|
|
|
|
#-------------------------------------------------------------------------
|
|
# Test a partial sort large enough to cause the sorter to spill data
|
|
# to disk.
|
|
#
|
|
reset_db
|
|
do_execsql_test 8.0 {
|
|
PRAGMA cache_size = 5;
|
|
CREATE TABLE t1(a, b);
|
|
CREATE INDEX i1 ON t1(a);
|
|
}
|
|
|
|
do_eqp_test 8.1 {
|
|
SELECT * FROM t1 ORDER BY a, b;
|
|
} {
|
|
0 0 0 {SCAN TABLE t1 USING INDEX i1}
|
|
0 0 0 {USE TEMP B-TREE FOR RIGHT PART OF ORDER BY}
|
|
}
|
|
|
|
do_execsql_test 8.2 {
|
|
WITH cnt(i) AS (
|
|
SELECT 1 UNION ALL SELECT i+1 FROM cnt WHERE i<10000
|
|
)
|
|
INSERT INTO t1 SELECT i%2, randomblob(500) FROM cnt;
|
|
}
|
|
|
|
do_test 8.3 {
|
|
db eval { SELECT * FROM t1 ORDER BY a, b } { incr res $a }
|
|
set res
|
|
} 5000
|
|
|
|
finish_test
|