--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/persistentstorage/sqlite3api/TEST/TclScript/select2.test Fri Jan 22 11:06:30 2010 +0200
@@ -0,0 +1,190 @@
+# 2001 September 15
+#
+# Portions Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiaries. All rights reserved.
+#
+# 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 SELECT statement.
+#
+# $Id: select2.test,v 1.27 2008/07/12 14:52:20 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Create a table with some data
+#
+execsql {CREATE TABLE tbl1(f1 int, f2 int)}
+execsql {BEGIN}
+for {set i 0} {$i<=30} {incr i} {
+ execsql "INSERT INTO tbl1 VALUES([expr {$i%9}],[expr {$i%10}])"
+}
+execsql {COMMIT}
+
+# Do a second query inside a first.
+#
+do_test select2-1.1 {
+ set sql {SELECT DISTINCT f1 FROM tbl1 ORDER BY f1}
+ set r {}
+ catch {unset data}
+ db eval $sql data {
+ set f1 $data(f1)
+ lappend r $f1:
+ set sql2 "SELECT f2 FROM tbl1 WHERE f1=$f1 ORDER BY f2"
+ db eval $sql2 d2 {
+ lappend r $d2(f2)
+ }
+ }
+ set r
+} {0: 0 7 8 9 1: 0 1 8 9 2: 0 1 2 9 3: 0 1 2 3 4: 2 3 4 5: 3 4 5 6: 4 5 6 7: 5 6 7 8: 6 7 8}
+
+do_test select2-1.2 {
+ set sql {SELECT DISTINCT f1 FROM tbl1 WHERE f1>3 AND f1<5}
+ set r {}
+ db eval $sql data {
+ set f1 $data(f1)
+ lappend r $f1:
+ set sql2 "SELECT f2 FROM tbl1 WHERE f1=$f1 ORDER BY f2"
+ db eval $sql2 d2 {
+ lappend r $d2(f2)
+ }
+ }
+ set r
+} {4: 2 3 4}
+unset data
+
+# Create a largish table. Do this twice, once using the TCL cache and once
+# without. Compare the performance to make sure things go faster with the
+# cache turned on.
+#
+ifcapable tclvar {
+ do_test select2-2.0.1 {
+ set t1 [time {
+ execsql {CREATE TABLE tbl2(f1 int, f2 int, f3 int); BEGIN;}
+ for {set i 1} {$i<=30000} {incr i} {
+ set i2 [expr {$i*2}]
+ set i3 [expr {$i*3}]
+ db eval {INSERT INTO tbl2 VALUES($i,$i2,$i3)}
+ }
+ execsql {COMMIT}
+ }]
+ list
+ } {}
+ puts "time with cache: $::t1"
+}
+catch {execsql {DROP TABLE tbl2}}
+do_test select2-2.0.2 {
+ set t2 [time {
+ execsql {CREATE TABLE tbl2(f1 int, f2 int, f3 int); BEGIN;}
+ for {set i 1} {$i<=30000} {incr i} {
+ set i2 [expr {$i*2}]
+ set i3 [expr {$i*3}]
+ execsql "INSERT INTO tbl2 VALUES($i,$i2,$i3)"
+ }
+ execsql {COMMIT}
+ }]
+ list
+} {}
+puts "time without cache: $t2"
+#Symbian OS: This is a tclsqlite3.exe test. We do not use the TCL cache.
+if {$::tcl_platform(platform)!="symbian"} {
+ ifcapable tclvar {
+ do_test select2-2.0.3 {
+ expr {[lindex $t1 0]<[lindex $t2 0]}
+ } 1
+ }
+}
+
+do_test select2-2.1 {
+ execsql {SELECT count(*) FROM tbl2}
+} {30000}
+do_test select2-2.2 {
+ execsql {SELECT count(*) FROM tbl2 WHERE f2>1000}
+} {29500}
+
+do_test select2-3.1 {
+ execsql {SELECT f1 FROM tbl2 WHERE 1000=f2}
+} {500}
+
+do_test select2-3.2a {
+ execsql {CREATE INDEX idx1 ON tbl2(f2)}
+} {}
+do_test select2-3.2b {
+ execsql {SELECT f1 FROM tbl2 WHERE 1000=f2}
+} {500}
+do_test select2-3.2c {
+ execsql {SELECT f1 FROM tbl2 WHERE f2=1000}
+} {500}
+do_test select2-3.2d {
+ set sqlite_search_count 0
+ execsql {SELECT * FROM tbl2 WHERE 1000=f2}
+ set sqlite_search_count
+} {3}
+do_test select2-3.2e {
+ set sqlite_search_count 0
+ execsql {SELECT * FROM tbl2 WHERE f2=1000}
+ set sqlite_search_count
+} {3}
+
+# Make sure queries run faster with an index than without
+#
+do_test select2-3.3 {
+ execsql {DROP INDEX idx1}
+ set sqlite_search_count 0
+ execsql {SELECT f1 FROM tbl2 WHERE f2==2000}
+ set sqlite_search_count
+} {29999}
+
+# Make sure we can optimize functions in the WHERE clause that
+# use fields from two or more different table. (Bug #6)
+#
+do_test select2-4.1 {
+ execsql {
+ CREATE TABLE aa(a);
+ CREATE TABLE bb(b);
+ INSERT INTO aa VALUES(1);
+ INSERT INTO aa VALUES(3);
+ INSERT INTO bb VALUES(2);
+ INSERT INTO bb VALUES(4);
+ SELECT * FROM aa, bb WHERE max(a,b)>2;
+ }
+} {1 4 3 2 3 4}
+do_test select2-4.2 {
+ execsql {
+ INSERT INTO bb VALUES(0);
+ SELECT * FROM aa, bb WHERE b;
+ }
+} {1 2 1 4 3 2 3 4}
+do_test select2-4.3 {
+ execsql {
+ SELECT * FROM aa, bb WHERE NOT b;
+ }
+} {1 0 3 0}
+do_test select2-4.4 {
+ execsql {
+ SELECT * FROM aa, bb WHERE min(a,b);
+ }
+} {1 2 1 4 3 2 3 4}
+do_test select2-4.5 {
+ execsql {
+ SELECT * FROM aa, bb WHERE NOT min(a,b);
+ }
+} {1 0 3 0}
+do_test select2-4.6 {
+ execsql {
+ SELECT * FROM aa, bb WHERE CASE WHEN a=b-1 THEN 1 END;
+ }
+} {1 2 3 4}
+do_test select2-4.7 {
+ execsql {
+ SELECT * FROM aa, bb WHERE CASE WHEN a=b-1 THEN 0 ELSE 1 END;
+ }
+} {1 4 1 0 3 2 3 0}
+
+finish_test