/trunk/test/descidx1.test |
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# 2005 December 21 |
# |
# 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 descending indices. |
# |
# $Id: descidx1.test,v 1.10 2008/03/19 00:21:31 drh Exp $ |
# |
|
set testdir [file dirname $argv0] |
source $testdir/tester.tcl |
|
# Do not use a codec for tests in this file, as the database file is |
# manipulated directly using tcl scripts (using the [hexio_write] command). |
# |
do_not_use_codec |
|
db eval {PRAGMA legacy_file_format=OFF} |
|
# This procedure sets the value of the file-format in file 'test.db' |
# to $newval. Also, the schema cookie is incremented. |
# |
proc set_file_format {newval} { |
hexio_write test.db 44 [hexio_render_int32 $newval] |
set schemacookie [hexio_get_int [hexio_read test.db 40 4]] |
incr schemacookie |
hexio_write test.db 40 [hexio_render_int32 $schemacookie] |
return {} |
} |
|
# This procedure returns the value of the file-format in file 'test.db'. |
# |
proc get_file_format {{fname test.db}} { |
return [hexio_get_int [hexio_read $fname 44 4]] |
} |
|
|
# Verify that the file format starts as 4. |
# |
do_test descidx1-1.1 { |
execsql { |
CREATE TABLE t1(a,b); |
CREATE INDEX i1 ON t1(b ASC); |
} |
get_file_format |
} {4} |
do_test descidx1-1.2 { |
execsql { |
CREATE INDEX i2 ON t1(a DESC); |
} |
get_file_format |
} {4} |
|
# Put some information in the table and verify that the descending |
# index actually works. |
# |
do_test descidx1-2.1 { |
execsql { |
INSERT INTO t1 VALUES(1,1); |
INSERT INTO t1 VALUES(2,2); |
INSERT INTO t1 SELECT a+2, a+2 FROM t1; |
INSERT INTO t1 SELECT a+4, a+4 FROM t1; |
SELECT b FROM t1 WHERE a>3 AND a<7; |
} |
} {6 5 4} |
do_test descidx1-2.2 { |
execsql { |
SELECT a FROM t1 WHERE b>3 AND b<7; |
} |
} {4 5 6} |
do_test descidx1-2.3 { |
execsql { |
SELECT b FROM t1 WHERE a>=3 AND a<7; |
} |
} {6 5 4 3} |
do_test descidx1-2.4 { |
execsql { |
SELECT b FROM t1 WHERE a>3 AND a<=7; |
} |
} {7 6 5 4} |
do_test descidx1-2.5 { |
execsql { |
SELECT b FROM t1 WHERE a>=3 AND a<=7; |
} |
} {7 6 5 4 3} |
do_test descidx1-2.6 { |
execsql { |
SELECT a FROM t1 WHERE b>=3 AND b<=7; |
} |
} {3 4 5 6 7} |
|
# 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 ::sqlite_sort_count 0 |
set data [execsql $sql] |
if {$::sqlite_sort_count} {set x sort} {set x nosort} |
lappend data $x |
return $data |
} |
|
# Test sorting using a descending index. |
# |
do_test descidx1-3.1 { |
cksort {SELECT a FROM t1 ORDER BY a} |
} {1 2 3 4 5 6 7 8 nosort} |
do_test descidx1-3.2 { |
cksort {SELECT a FROM t1 ORDER BY a ASC} |
} {1 2 3 4 5 6 7 8 nosort} |
do_test descidx1-3.3 { |
cksort {SELECT a FROM t1 ORDER BY a DESC} |
} {8 7 6 5 4 3 2 1 nosort} |
do_test descidx1-3.4 { |
cksort {SELECT b FROM t1 ORDER BY a} |
} {1 2 3 4 5 6 7 8 nosort} |
do_test descidx1-3.5 { |
cksort {SELECT b FROM t1 ORDER BY a ASC} |
} {1 2 3 4 5 6 7 8 nosort} |
do_test descidx1-3.6 { |
cksort {SELECT b FROM t1 ORDER BY a DESC} |
} {8 7 6 5 4 3 2 1 nosort} |
do_test descidx1-3.7 { |
cksort {SELECT a FROM t1 ORDER BY b} |
} {1 2 3 4 5 6 7 8 nosort} |
do_test descidx1-3.8 { |
cksort {SELECT a FROM t1 ORDER BY b ASC} |
} {1 2 3 4 5 6 7 8 nosort} |
do_test descidx1-3.9 { |
cksort {SELECT a FROM t1 ORDER BY b DESC} |
} {8 7 6 5 4 3 2 1 nosort} |
do_test descidx1-3.10 { |
cksort {SELECT b FROM t1 ORDER BY b} |
} {1 2 3 4 5 6 7 8 nosort} |
do_test descidx1-3.11 { |
cksort {SELECT b FROM t1 ORDER BY b ASC} |
} {1 2 3 4 5 6 7 8 nosort} |
do_test descidx1-3.12 { |
cksort {SELECT b FROM t1 ORDER BY b DESC} |
} {8 7 6 5 4 3 2 1 nosort} |
|
do_test descidx1-3.21 { |
cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a} |
} {4 5 6 7 nosort} |
do_test descidx1-3.22 { |
cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a ASC} |
} {4 5 6 7 nosort} |
do_test descidx1-3.23 { |
cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a DESC} |
} {7 6 5 4 nosort} |
do_test descidx1-3.24 { |
cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a} |
} {4 5 6 7 nosort} |
do_test descidx1-3.25 { |
cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a ASC} |
} {4 5 6 7 nosort} |
do_test descidx1-3.26 { |
cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a DESC} |
} {7 6 5 4 nosort} |
|
# Create a table with indices that are descending on some terms and |
# ascending on others. |
# |
ifcapable bloblit { |
do_test descidx1-4.1 { |
execsql { |
CREATE TABLE t2(a INT, b TEXT, c BLOB, d REAL); |
CREATE INDEX i3 ON t2(a ASC, b DESC, c ASC); |
CREATE INDEX i4 ON t2(b DESC, a ASC, d DESC); |
INSERT INTO t2 VALUES(1,'one',x'31',1.0); |
INSERT INTO t2 VALUES(2,'two',x'3232',2.0); |
INSERT INTO t2 VALUES(3,'three',x'333333',3.0); |
INSERT INTO t2 VALUES(4,'four',x'34343434',4.0); |
INSERT INTO t2 VALUES(5,'five',x'3535353535',5.0); |
INSERT INTO t2 VALUES(6,'six',x'363636363636',6.0); |
INSERT INTO t2 VALUES(2,'two',x'323232',2.1); |
INSERT INTO t2 VALUES(2,'zwei',x'3232',2.2); |
INSERT INTO t2 VALUES(2,NULL,NULL,2.3); |
SELECT count(*) FROM t2; |
} |
} {9} |
do_test descidx1-4.2 { |
execsql { |
SELECT d FROM t2 ORDER BY a; |
} |
} {1.0 2.2 2.0 2.1 2.3 3.0 4.0 5.0 6.0} |
do_test descidx1-4.3 { |
execsql { |
SELECT d FROM t2 WHERE a>=2; |
} |
} {2.2 2.0 2.1 2.3 3.0 4.0 5.0 6.0} |
do_test descidx1-4.4 { |
execsql { |
SELECT d FROM t2 WHERE a>2; |
} |
} {3.0 4.0 5.0 6.0} |
do_test descidx1-4.5 { |
execsql { |
SELECT d FROM t2 WHERE a=2 AND b>'two'; |
} |
} {2.2} |
do_test descidx1-4.6 { |
execsql { |
SELECT d FROM t2 WHERE a=2 AND b>='two'; |
} |
} {2.2 2.0 2.1} |
do_test descidx1-4.7 { |
execsql { |
SELECT d FROM t2 WHERE a=2 AND b<'two'; |
} |
} {} |
do_test descidx1-4.8 { |
execsql { |
SELECT d FROM t2 WHERE a=2 AND b<='two'; |
} |
} {2.0 2.1} |
} |
|
do_test descidx1-5.1 { |
execsql { |
CREATE TABLE t3(a,b,c,d); |
CREATE INDEX t3i1 ON t3(a DESC, b ASC, c DESC, d ASC); |
INSERT INTO t3 VALUES(0,0,0,0); |
INSERT INTO t3 VALUES(0,0,0,1); |
INSERT INTO t3 VALUES(0,0,1,0); |
INSERT INTO t3 VALUES(0,0,1,1); |
INSERT INTO t3 VALUES(0,1,0,0); |
INSERT INTO t3 VALUES(0,1,0,1); |
INSERT INTO t3 VALUES(0,1,1,0); |
INSERT INTO t3 VALUES(0,1,1,1); |
INSERT INTO t3 VALUES(1,0,0,0); |
INSERT INTO t3 VALUES(1,0,0,1); |
INSERT INTO t3 VALUES(1,0,1,0); |
INSERT INTO t3 VALUES(1,0,1,1); |
INSERT INTO t3 VALUES(1,1,0,0); |
INSERT INTO t3 VALUES(1,1,0,1); |
INSERT INTO t3 VALUES(1,1,1,0); |
INSERT INTO t3 VALUES(1,1,1,1); |
SELECT count(*) FROM t3; |
} |
} {16} |
do_test descidx1-5.2 { |
cksort { |
SELECT a||b||c||d FROM t3 ORDER BY a,b,c,d; |
} |
} {0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 sort} |
do_test descidx1-5.3 { |
cksort { |
SELECT a||b||c||d FROM t3 ORDER BY a DESC, b ASC, c DESC, d ASC; |
} |
} {1010 1011 1000 1001 1110 1111 1100 1101 0010 0011 0000 0001 0110 0111 0100 0101 nosort} |
do_test descidx1-5.4 { |
cksort { |
SELECT a||b||c||d FROM t3 ORDER BY a ASC, b DESC, c ASC, d DESC; |
} |
} {0101 0100 0111 0110 0001 0000 0011 0010 1101 1100 1111 1110 1001 1000 1011 1010 nosort} |
do_test descidx1-5.5 { |
cksort { |
SELECT a||b||c FROM t3 WHERE d=0 ORDER BY a DESC, b ASC, c DESC |
} |
} {101 100 111 110 001 000 011 010 nosort} |
do_test descidx1-5.6 { |
cksort { |
SELECT a||b||c FROM t3 WHERE d=0 ORDER BY a ASC, b DESC, c ASC |
} |
} {010 011 000 001 110 111 100 101 nosort} |
do_test descidx1-5.7 { |
cksort { |
SELECT a||b||c FROM t3 WHERE d=0 ORDER BY a ASC, b DESC, c DESC |
} |
} {011 010 001 000 111 110 101 100 sort} |
do_test descidx1-5.8 { |
cksort { |
SELECT a||b||c FROM t3 WHERE d=0 ORDER BY a ASC, b ASC, c ASC |
} |
} {000 001 010 011 100 101 110 111 sort} |
do_test descidx1-5.9 { |
cksort { |
SELECT a||b||c FROM t3 WHERE d=0 ORDER BY a DESC, b DESC, c ASC |
} |
} {110 111 100 101 010 011 000 001 sort} |
|
# Test the legacy_file_format pragma here because we have access to |
# the get_file_format command. |
# |
ifcapable legacyformat { |
do_test descidx1-6.1 { |
db close |
file delete -force test.db test.db-journal |
sqlite3 db test.db |
execsql {PRAGMA legacy_file_format} |
} {1} |
} else { |
do_test descidx1-6.1 { |
db close |
file delete -force test.db test.db-journal |
sqlite3 db test.db |
execsql {PRAGMA legacy_file_format} |
} {0} |
} |
do_test descidx1-6.2 { |
execsql {PRAGMA legacy_file_format=YES} |
execsql {PRAGMA legacy_file_format} |
} {1} |
do_test descidx1-6.3 { |
execsql { |
CREATE TABLE t1(a,b,c); |
} |
get_file_format |
} {1} |
ifcapable vacuum { |
# Verify that the file format is preserved across a vacuum. |
do_test descidx1-6.3.1 { |
execsql {VACUUM} |
get_file_format |
} {1} |
} |
do_test descidx1-6.4 { |
db close |
file delete -force test.db test.db-journal |
sqlite3 db test.db |
execsql {PRAGMA legacy_file_format=NO} |
execsql {PRAGMA legacy_file_format} |
} {0} |
do_test descidx1-6.5 { |
execsql { |
CREATE TABLE t1(a,b,c); |
CREATE INDEX i1 ON t1(a ASC, b DESC, c ASC); |
INSERT INTO t1 VALUES(1,2,3); |
INSERT INTO t1 VALUES(1,1,0); |
INSERT INTO t1 VALUES(1,2,1); |
INSERT INTO t1 VALUES(1,3,4); |
} |
get_file_format |
} {4} |
ifcapable vacuum { |
# Verify that the file format is preserved across a vacuum. |
do_test descidx1-6.6 { |
execsql {VACUUM} |
get_file_format |
} {4} |
do_test descidx1-6.7 { |
execsql { |
PRAGMA legacy_file_format=ON; |
VACUUM; |
} |
get_file_format |
} {4} |
} |
|
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finish_test |