| # 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: descidx2.test,v 1.5 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 descidx2-1.1 { |
| execsql { |
| CREATE TABLE t1(a,b); |
| CREATE INDEX i1 ON t1(b ASC); |
| } |
| get_file_format |
| } {4} |
| do_test descidx2-1.2 { |
| execsql { |
| CREATE INDEX i2 ON t1(a DESC); |
| } |
| get_file_format |
| } {4} |
| |
| # Before adding any information to the database, set the file format |
| # back to three. Then close and reopen the database. With the file |
| # format set to three, SQLite should ignore the DESC argument on the |
| # index. |
| # |
| do_test descidx2-2.0 { |
| set_file_format 3 |
| db close |
| sqlite3 db test.db |
| get_file_format |
| } {3} |
| |
| # Put some information in the table and verify that the DESC |
| # on the index is ignored. |
| # |
| do_test descidx2-2.1 { |
| 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; |
| } |
| } {4 5 6} |
| do_test descidx2-2.2 { |
| execsql { |
| SELECT a FROM t1 WHERE b>3 AND b<7; |
| } |
| } {4 5 6} |
| do_test descidx2-2.3 { |
| execsql { |
| SELECT b FROM t1 WHERE a>=3 AND a<7; |
| } |
| } {3 4 5 6} |
| do_test descidx2-2.4 { |
| execsql { |
| SELECT b FROM t1 WHERE a>3 AND a<=7; |
| } |
| } {4 5 6 7} |
| do_test descidx2-2.5 { |
| execsql { |
| SELECT b FROM t1 WHERE a>=3 AND a<=7; |
| } |
| } {3 4 5 6 7} |
| do_test descidx2-2.6 { |
| 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 descidx2-3.1 { |
| cksort {SELECT a FROM t1 ORDER BY a} |
| } {1 2 3 4 5 6 7 8 nosort} |
| do_test descidx2-3.2 { |
| cksort {SELECT a FROM t1 ORDER BY a ASC} |
| } {1 2 3 4 5 6 7 8 nosort} |
| do_test descidx2-3.3 { |
| cksort {SELECT a FROM t1 ORDER BY a DESC} |
| } {8 7 6 5 4 3 2 1 nosort} |
| do_test descidx2-3.4 { |
| cksort {SELECT b FROM t1 ORDER BY a} |
| } {1 2 3 4 5 6 7 8 nosort} |
| do_test descidx2-3.5 { |
| cksort {SELECT b FROM t1 ORDER BY a ASC} |
| } {1 2 3 4 5 6 7 8 nosort} |
| do_test descidx2-3.6 { |
| cksort {SELECT b FROM t1 ORDER BY a DESC} |
| } {8 7 6 5 4 3 2 1 nosort} |
| do_test descidx2-3.7 { |
| cksort {SELECT a FROM t1 ORDER BY b} |
| } {1 2 3 4 5 6 7 8 nosort} |
| do_test descidx2-3.8 { |
| cksort {SELECT a FROM t1 ORDER BY b ASC} |
| } {1 2 3 4 5 6 7 8 nosort} |
| do_test descidx2-3.9 { |
| cksort {SELECT a FROM t1 ORDER BY b DESC} |
| } {8 7 6 5 4 3 2 1 nosort} |
| do_test descidx2-3.10 { |
| cksort {SELECT b FROM t1 ORDER BY b} |
| } {1 2 3 4 5 6 7 8 nosort} |
| do_test descidx2-3.11 { |
| cksort {SELECT b FROM t1 ORDER BY b ASC} |
| } {1 2 3 4 5 6 7 8 nosort} |
| do_test descidx2-3.12 { |
| cksort {SELECT b FROM t1 ORDER BY b DESC} |
| } {8 7 6 5 4 3 2 1 nosort} |
| |
| do_test descidx2-3.21 { |
| cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a} |
| } {4 5 6 7 nosort} |
| do_test descidx2-3.22 { |
| cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a ASC} |
| } {4 5 6 7 nosort} |
| do_test descidx2-3.23 { |
| cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a DESC} |
| } {7 6 5 4 nosort} |
| do_test descidx2-3.24 { |
| cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a} |
| } {4 5 6 7 nosort} |
| do_test descidx2-3.25 { |
| cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a ASC} |
| } {4 5 6 7 nosort} |
| do_test descidx2-3.26 { |
| cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a DESC} |
| } {7 6 5 4 nosort} |
| |
| finish_test |