77 lines
2.1 KiB
Plaintext
77 lines
2.1 KiB
Plaintext
# 2012 April 19
|
|
#
|
|
# 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.
|
|
#
|
|
#***********************************************************************
|
|
# The tests in this file were used while developing the SQLite 4 code.
|
|
#
|
|
|
|
set testdir [file dirname $argv0]
|
|
source $testdir/tester.tcl
|
|
set testprefix tkt-2a5629202f
|
|
|
|
# This procedure executes the SQL. Then it checks to see if the OP_Sort
|
|
# opcode was executed. If an OP_Sort did occur, then "sort" is appended
|
|
# to the result. If no OP_Sort happened, then "nosort" is appended.
|
|
#
|
|
# This procedure is used to check to make sure sorting is or is not
|
|
# occurring as expected.
|
|
#
|
|
proc cksort {sql} {
|
|
set data [execsql $sql]
|
|
if {[db status sort]} {set x sort} {set x nosort}
|
|
lappend data $x
|
|
return $data
|
|
}
|
|
|
|
do_execsql_test 1.1 {
|
|
CREATE TABLE t8(b TEXT, c TEXT);
|
|
INSERT INTO t8 VALUES('a', 'one');
|
|
INSERT INTO t8 VALUES('b', 'two');
|
|
INSERT INTO t8 VALUES(NULL, 'three');
|
|
INSERT INTO t8 VALUES(NULL, 'four');
|
|
}
|
|
|
|
do_execsql_test 1.2 {
|
|
SELECT coalesce(b, 'null') || '/' || c FROM t8 x ORDER BY x.b, x.c
|
|
} {null/four null/three a/one b/two}
|
|
|
|
do_execsql_test 1.3 {
|
|
CREATE UNIQUE INDEX i1 ON t8(b);
|
|
SELECT coalesce(b, 'null') || '/' || c FROM t8 x ORDER BY x.b, x.c
|
|
} {null/four null/three a/one b/two}
|
|
|
|
do_execsql_test 1.4 {
|
|
DROP INDEX i1;
|
|
CREATE UNIQUE INDEX i1 ON t8(b, c);
|
|
SELECT coalesce(b, 'null') || '/' || c FROM t8 x ORDER BY x.b, x.c
|
|
} {null/four null/three a/one b/two}
|
|
|
|
#-------------------------------------------------------------------------
|
|
#
|
|
|
|
do_execsql_test 2.1 {
|
|
CREATE TABLE t2(a, b NOT NULL, c);
|
|
CREATE UNIQUE INDEX t2ab ON t2(a, b);
|
|
CREATE UNIQUE INDEX t2ba ON t2(b, a);
|
|
}
|
|
|
|
do_test 2.2 {
|
|
cksort { SELECT * FROM t2 WHERE a = 10 ORDER BY a, b, c }
|
|
} {nosort}
|
|
|
|
do_test 2.3 {
|
|
cksort { SELECT * FROM t2 WHERE b = 10 ORDER BY a, b, c }
|
|
} {sort}
|
|
|
|
do_test 2.4 {
|
|
cksort { SELECT * FROM t2 WHERE a IS NULL ORDER BY a, b, c }
|
|
} {sort}
|
|
|
|
finish_test
|