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# 2024-05-01
#
# 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.
#
#***********************************************************************
#
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix in7
do_execsql_test 1.0 {
CREATE TABLE t1(a, b, c PRIMARY KEY);
CREATE TABLE t2(x, y, z);
}
foreach {tn nNext idx sql} {
1 1 {
CREATE INDEX i1 ON t1(a, b);
} {
SELECT * FROM t1 WHERE (a, b) IN (SELECT x, y FROM t2)
}
2 0 {
CREATE UNIQUE INDEX i1 ON t1(a, b);
} {
SELECT * FROM t1 WHERE (a, b) IN (SELECT x, y FROM t2)
}
3 0 {
CREATE UNIQUE INDEX i1 ON t1(a, b);
} {
SELECT * FROM t1 WHERE a = ? AND b = ?
}
3 1 {
CREATE UNIQUE INDEX i1 ON t1(a, b);
} {
SELECT * FROM t1 WHERE a = ? AND b IS ?
}
4 0 {
CREATE UNIQUE INDEX i1 ON t1(a, b);
} {
SELECT * FROM t1 WHERE a = ? AND b IN (?, ?, ?);
}
5 1 {
CREATE UNIQUE INDEX i1 ON t1(a, b, c);
} {
SELECT * FROM t1 WHERE a = ? AND b = ?
}
6 0 {
} {
SELECT * FROM t1 WHERE c IN (SELECT z FROM t2)
}
7 0 {
} {
SELECT * FROM t1 WHERE (a, c) IN (SELECT z, x FROM t2)
}
8 1 {
} {
SELECT * FROM t1 WHERE a IN (SELECT z FROM t2)
}
9 1 {
CREATE UNIQUE INDEX i1 ON t1(a, b);
} {
SELECT * FROM t1 WHERE a IN (SELECT z FROM t2) AND b IS ?
}
10 0 {
CREATE UNIQUE INDEX i1 ON t1(a, b);
} {
SELECT * FROM t1 WHERE a IN (SELECT z FROM t2) AND b = ?
}
11 1 {
CREATE UNIQUE INDEX i1 ON t1(a, b);
} {
SELECT * FROM t1 WHERE a IS NULL AND b IN (SELECT z FROM t2)
}
12 0 {
CREATE UNIQUE INDEX i1 ON t1(a, b);
} {
SELECT * FROM t1 WHERE a = ? AND b IN (SELECT z FROM t2)
}
} {
do_test 1.1.$tn {
execsql BEGIN
execsql $idx
catch { array unset root_to_tbl }
catch { array unset csr_to_root }
db eval {SELECT rootpage, tbl_name FROM sqlite_schema} {
set root_to_tbl($rootpage) $tbl_name
}
set nSeen 0
db eval "explain $sql" {
if {$opcode=="OpenRead"} {
set csr_to_root($p1) $p2
}
if {$opcode=="Next"} {
catch {
set root $csr_to_root($p1)
set tbl $root_to_tbl($root)
if {$tbl=="t1"} {incr nSeen}
}
}
}
execsql ROLLBACK
set nSeen
} $nNext
}
#-------------------------------------------------------------------------
reset_db
do_execsql_test 2.0 {
CREATE TABLE t1(a TEXT PRIMARY KEY, b TEXT) WITHOUT ROWID;
INSERT INTO t1 VALUES('1', 'one');
INSERT INTO t1 VALUES('2', NULL);
INSERT INTO t1 VALUES('3', 'three');
}
do_execsql_test 2.1 {
SELECT b FROM t1 WHERE a IN (1,2,3) ORDER BY b ASC NULLS LAST;
} {one three {}}
finish_test
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