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# 2014-04-25
#
# 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 ORDER BY optimizations on joins
# that involve virtual tables.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set ::testprefix orderby7
ifcapable !fts3 {
finish_test
return
}
do_execsql_test 1.0 {
CREATE VIRTUAL TABLE fts USING fts3(content TEXT);
INSERT INTO fts(rowid,content)
VALUES(1,'this is a test of the fts3 virtual'),
(2,'table used as part of a join together'),
(3,'with the DISTINCT keyword. There was'),
(4,'a bug at one time (2013-06 through 2014-04)'),
(5,'that prevented this from working correctly.'),
(11,'a row that occurs twice'),
(12,'a row that occurs twice');
CREATE TABLE t1(x TEXT PRIMARY KEY, y);
INSERT OR IGNORE INTO t1 SELECT content, rowid+100 FROM fts;
} {}
do_execsql_test 1.1 {
SELECT DISTINCT fts.rowid, t1.y
FROM fts, t1
WHERE fts MATCH 'that twice'
AND content=x
ORDER BY y;
} {11 111 12 111}
do_execsql_test 1.2 {
SELECT DISTINCT fts.rowid, t1.x
FROM fts, t1
WHERE fts MATCH 'that twice'
AND content=x
ORDER BY 1;
} {11 {a row that occurs twice} 12 {a row that occurs twice}}
do_execsql_test 1.3 {
SELECT DISTINCT t1.x
FROM fts, t1
WHERE fts MATCH 'that twice'
AND content=x
ORDER BY 1;
} {{a row that occurs twice}}
do_execsql_test 1.4 {
SELECT t1.x
FROM fts, t1
WHERE fts MATCH 'that twice'
AND content=x
ORDER BY 1;
} {{a row that occurs twice} {a row that occurs twice}}
do_execsql_test 1.5 {
SELECT DISTINCT t1.x
FROM fts, t1
WHERE fts MATCH 'that twice'
AND content=x;
} {{a row that occurs twice}}
do_execsql_test 1.6 {
SELECT t1.x
FROM fts, t1
WHERE fts MATCH 'that twice'
AND content=x;
} {{a row that occurs twice} {a row that occurs twice}}
do_execsql_test 2.1 {
SELECT DISTINCT t1.x
FROM fts, t1
WHERE fts.rowid=11
AND content=x
ORDER BY fts.rowid;
} {{a row that occurs twice}}
do_execsql_test 2.2 {
SELECT DISTINCT t1.*
FROM fts, t1
WHERE fts.rowid=11
AND content=x
ORDER BY fts.rowid;
} {{a row that occurs twice} 111}
do_execsql_test 2.3 {
SELECT DISTINCT t1.*
FROM fts, t1
WHERE fts.rowid=11
AND content=x
ORDER BY t1.y
} {{a row that occurs twice} 111}
finish_test
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