# 2009 February 23 # # 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 the reverse_select_order pragma. # # $Id: whereA.test,v 1.3 2009/06/10 19:33:29 drh Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl do_test whereA-1.1 { db eval { CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE, c); INSERT INTO t1 VALUES(1,2,3); INSERT INTO t1 values(2,'hello','world'); INSERT INTO t1 VALUES(3,4.53,NULL); SELECT * FROM t1 } } {1 2 3 2 hello world 3 4.53 {}} do_test whereA-1.2 { db eval { PRAGMA reverse_unordered_selects=1; SELECT * FROM t1; } } {3 4.53 {} 2 hello world 1 2 3} do_test whereA-1.3 { db close sqlite3 db test.db db eval { PRAGMA reverse_unordered_selects=1; SELECT * FROM t1; } } {3 4.53 {} 2 hello world 1 2 3} do_test whereA-1.4 { db close sqlite3 db test.db db eval { PRAGMA reverse_unordered_selects=1; SELECT * FROM t1 ORDER BY rowid; } } {1 2 3 2 hello world 3 4.53 {}} do_test whereA-1.5 { db eval { VACUUM; SELECT * FROM t1 ORDER BY rowid; } } {1 2 3 2 hello world 3 4.53 {}} do_test whereA-1.6 { db eval { PRAGMA reverse_unordered_selects; } } {1} do_test whereA-1.7 { db close sqlite3 db test.db db eval { PRAGMA reverse_unordered_selects=1; VACUUM; SELECT * FROM t1; } } {3 4.53 {} 2 hello world 1 2 3} do_execsql_test whereA-1.8 { SELECT * FROM t1 WHERE b=2 AND a IS NULL; } {} do_execsql_test whereA-1.9 { SELECT * FROM t1 WHERE b=2 AND a IS NOT NULL; } {1 2 3} do_test whereA-2.1 { db eval { PRAGMA reverse_unordered_selects=0; SELECT * FROM t1 WHERE a>0; } } {1 2 3 2 hello world 3 4.53 {}} do_test whereA-2.2 { db eval { PRAGMA reverse_unordered_selects=1; SELECT * FROM t1 WHERE a>0; } } {3 4.53 {} 2 hello world 1 2 3} do_test whereA-2.3 { db eval { PRAGMA reverse_unordered_selects=1; SELECT * FROM t1 WHERE a>0 ORDER BY rowid; } } {1 2 3 2 hello world 3 4.53 {}} do_test whereA-3.1 { db eval { PRAGMA reverse_unordered_selects=0; SELECT * FROM t1 WHERE b>0; } } {1 2 3 3 4.53 {} 2 hello world} do_test whereA-3.2 { db eval { PRAGMA reverse_unordered_selects=1; SELECT * FROM t1 WHERE b>0; } } {2 hello world 3 4.53 {} 1 2 3} do_test whereA-3.3 { db eval { PRAGMA reverse_unordered_selects=1; SELECT * FROM t1 WHERE b>0 ORDER BY b; } } {1 2 3 3 4.53 {} 2 hello world} do_test whereA-4.1 { db eval { CREATE TABLE t2(x); INSERT INTO t2 VALUES(1); INSERT INTO t2 VALUES(2); SELECT x FROM t2; } } {2 1} # Do an SQL statement. Append the search count to the end of the result. # proc count sql { set ::sqlite_sort_count 0 return [concat [execsql $sql] $::sqlite_sort_count] } do_test whereA-4.2 { ;# Ticket #3904 db eval { CREATE INDEX t2x ON t2(x); } count { SELECT x FROM t2; } } {2 1 0} do_test whereA-4.3 { count { SELECT x FROM t2 ORDER BY x; } } {1 2 0} do_test whereA-4.4 { count { SELECT x FROM t2 ORDER BY x DESC; } } {2 1 0} do_test whereA-4.5 { db eval {DROP INDEX t2x;} count { SELECT x FROM t2 ORDER BY x; } } {1 2 1} do_test whereA-4.6 { count { SELECT x FROM t2 ORDER BY x DESC; } } {2 1 1} finish_test