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libsql/libsql-sqlite3/test/autoindex4.test
2023-10-16 13:58:16 +02:00

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# 2014-10-24
#
# 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 script is testing automatic index creation logic,
# and specifically creation of automatic partial indexes.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
do_execsql_test autoindex4-1.0 {
CREATE TABLE t1(a,b);
INSERT INTO t1 VALUES(123,'abc'),(234,'def'),(234,'ghi'),(345,'jkl');
CREATE TABLE t2(x,y);
INSERT INTO t2 VALUES(987,'zyx'),(654,'wvu'),(987,'rqp');
SELECT *, '|' FROM t1, t2 WHERE a=234 AND x=987 ORDER BY +b;
} {234 def 987 rqp | 234 def 987 zyx | 234 ghi 987 rqp | 234 ghi 987 zyx |}
do_execsql_test autoindex4-1.1 {
SELECT *, '|' FROM t1, t2 WHERE a=234 AND x=555;
} {}
do_execsql_test autoindex4-1.2 {
SELECT *, '|' FROM t1 LEFT JOIN t2 ON a=234 AND x=555;
} {123 abc {} {} | 234 def {} {} | 234 ghi {} {} | 345 jkl {} {} |}
do_execsql_test autoindex4-1.2-rj {
SELECT t1.*, t2.*, '|' FROM t2 RIGHT JOIN t1 ON a=234 AND x=555;
} {123 abc {} {} | 234 def {} {} | 234 ghi {} {} | 345 jkl {} {} |}
do_execsql_test autoindex4-1.3 {
SELECT *, '|' FROM t1 LEFT JOIN t2 ON x=555 WHERE a=234;
} {234 def {} {} | 234 ghi {} {} |}
do_execsql_test autoindex4-1.3-rj {
SELECT t1.*, t2.*, '|' FROM t2 RIGHT JOIN t1 ON x=555 WHERE a=234;
} {234 def {} {} | 234 ghi {} {} |}
do_execsql_test autoindex4-1.4 {
SELECT *, '|' FROM t1 LEFT JOIN t2 WHERE a=234 AND x=555;
} {}
do_execsql_test autoindex4-1.4-rj {
SELECT t1.*, t2.*, '|' FROM t2 RIGHT JOIN t1 WHERE a=234 AND x=555;
} {}
do_execsql_test autoindex4-2.0 {
CREATE TABLE t3(e,f);
INSERT INTO t3 VALUES(123,654),(555,444),(234,987);
SELECT (SELECT count(*) FROM t1, t2 WHERE a=e AND x=f), e, f, '|'
FROM t3
ORDER BY rowid;
} {1 123 654 | 0 555 444 | 4 234 987 |}
# Ticket [2326c258d02ead33d]
# Two joins, one with and the other without an ORDER BY clause.
# The one without ORDER BY correctly returns two rows of result.
# The one with ORDER BY returns no rows.
#
do_execsql_test autoindex4-3.0 {
CREATE TABLE A(Name text);
CREATE TABLE Items(ItemName text , Name text);
INSERT INTO Items VALUES('Item1','Parent');
INSERT INTO Items VALUES('Item2','Parent');
CREATE TABLE B(Name text);
SELECT Items.ItemName
FROM Items
LEFT JOIN A ON (A.Name = Items.ItemName and Items.ItemName = 'dummy')
LEFT JOIN B ON (B.Name = Items.ItemName)
WHERE Items.Name = 'Parent'
ORDER BY Items.ItemName;
} {Item1 Item2}
do_execsql_test autoindex4-3.1 {
SELECT Items.ItemName
FROM A
RIGHT JOIN Items ON (A.Name = Items.ItemName and Items.ItemName = 'dummy')
LEFT JOIN B ON (B.Name = Items.ItemName)
WHERE Items.Name = 'Parent'
ORDER BY Items.ItemName;
} {Item1 Item2}
do_execsql_test autoindex4-3.10 {
CREATE INDEX Items_x1 ON Items(ItemName,Name) WHERE ItemName = 'dummy';
SELECT Items.ItemName
FROM Items
LEFT JOIN A ON (A.Name = Items.ItemName and Items.ItemName = 'dummy')
LEFT JOIN B ON (B.Name = Items.ItemName)
WHERE Items.Name = 'Parent'
ORDER BY Items.ItemName;
} {Item1 Item2}
do_execsql_test autoindex4-3.11 {
SELECT Items.ItemName
FROM A
RIGHT JOIN Items ON (A.Name = Items.ItemName and Items.ItemName = 'dummy')
LEFT JOIN B ON (B.Name = Items.ItemName)
WHERE Items.Name = 'Parent'
ORDER BY Items.ItemName;
} {Item1 Item2}
# 2021-11-30 - Enhancement to help the automatic index mechanism to
# create a partial index more often.
#
unset -nocomplain id data1 data2 jointype onclause whereclause answer
foreach {id data1 data2 jointype onclause whereclause answer} {
1
VALUES(1,2),(3,4)
VALUES(1,2),(3,4)
{LEFT JOIN}
a=x
{y=4 OR y IS NULL}
{3 4 3 4}
2
VALUES(1,2),(3,4)
VALUES(1,2),(3,4)
{LEFT JOIN}
{a=x AND y=4}
{coalesce(y,4)==4}
{1 2 {} {} 3 4 3 4}
3
VALUES(1,2),(3,4)
VALUES(1,2),(3,4)
{JOIN}
{a=x}
{y=4 OR y IS NULL}
{3 4 3 4}
4
VALUES(1,2),(3,4)
VALUES(1,2),(3,4)
{JOIN}
{a=x AND y=4}
{coalesce(y,4)==4}
{3 4 3 4}
5.1
VALUES(1,2),(3,4),(NULL,4)
VALUES(1,2),(3,4)
{LEFT JOIN}
a=x
{y=4 OR y IS NULL}
{3 4 3 4 {} 4 {} {}}
5.2
VALUES(1,2),(3,4),(NULL,4)
VALUES(1,2),(3,4)
{LEFT JOIN}
a=x
{y NOT IN ()}
{1 2 1 2 3 4 3 4 {} 4 {} {}}
5.3
VALUES(1,2),(3,4),(NULL,4)
VALUES(1,2),(3,4)
{LEFT JOIN}
a=x
{y NOT IN (SELECT 1 WHERE false)}
{1 2 1 2 3 4 3 4 {} 4 {} {}}
6
VALUES(1,2),(3,4)
VALUES(1,2),(3,4),(NULL,4)
{LEFT JOIN}
{a=x AND y=4}
{coalesce(y,4)==4}
{1 2 {} {} 3 4 3 4}
7
VALUES(1,2),(3,4),(NULL,4)
VALUES(1,2),(3,4),(NULL,4)
{JOIN}
{a=x}
{y=4 OR y IS NULL}
{3 4 3 4}
8
VALUES(1,2),(3,4)
VALUES(1,2),(3,4)
{JOIN}
{a=x AND y=4}
{coalesce(y,4)==4}
{3 4 3 4}
} {
do_test autoindex4-4.$id.0 {
db eval {
DROP TABLE IF EXISTS t1;
CREATE TABLE t1(a INT, b INT);
DROP TABLE IF EXISTS t2;
CREATE TABLE t2(x INT, y INT);
}
db eval "INSERT INTO t1(a,b) $data1;"
db eval "INSERT INTO t2(x,y) $data2;"
} {}
set sql "SELECT * FROM t1 $jointype t2 ON $onclause WHERE $whereclause"
# puts "sql = $sql"
do_test autoindex4-4.$id.1 {
db eval {PRAGMA automatic_index=ON;}
db eval $sql
} $answer
do_test autoindex4-4.$id.2 {
db eval {PRAGMA automatic_index=OFF;}
db eval $sql
} $answer
do_test autoindex4-4.$id.3 {
db eval {PRAGMA automatic_index=ON;}
optimization_control db all 0
db eval $sql
} $answer
optimization_control db all 1
}
finish_test