3 # The author disclaims copyright to this source code. In place of
4 # a legal notice, here is a blessing:
6 # May you do good and not evil.
7 # May you find forgiveness for yourself and forgive others.
8 # May you share freely, never taking more than you give.
10 #***********************************************************************
11 # This file implements regression tests for SQLite library. The
12 # focus of this file is testing the SELECT statement.
14 # $Id: select2.test,v 1.24 2005/01/25 04:27:55 danielk1977 Exp $
16 set testdir [file dirname $argv0]
17 source $testdir/tester.tcl
19 # Create a table with some data
21 execsql {CREATE TABLE tbl1(f1 int, f2 int)}
23 for {set i 0} {$i<=30} {incr i} {
24 execsql "INSERT INTO tbl1 VALUES([expr {$i%9}],[expr {$i%10}])"
28 # Do a second query inside a first.
31 set sql {SELECT DISTINCT f1 FROM tbl1 ORDER BY f1}
37 set sql2 "SELECT f2 FROM tbl1 WHERE f1=$f1 ORDER BY f2"
43 } {0: 0 7 8 9 1: 0 1 8 9 2: 0 1 2 9 3: 0 1 2 3 4: 2 3 4 5: 3 4 5 6: 4 5 6 7: 5 6 7 8: 6 7 8}
46 set sql {SELECT DISTINCT f1 FROM tbl1 WHERE f1>3 AND f1<5}
51 set sql2 "SELECT f2 FROM tbl1 WHERE f1=$f1 ORDER BY f2"
59 # Create a largish table. Do this twice, once using the TCL cache and once
60 # without. Compare the performance to make sure things go faster with the
64 do_test select2-2.0.1 {
66 execsql {CREATE TABLE tbl2(f1 int, f2 int, f3 int); BEGIN;}
67 for {set i 1} {$i<=30000} {incr i} {
70 db eval {INSERT INTO tbl2 VALUES($i,$i2,$i3)}
76 puts "time with cache: $::t1"
78 catch {execsql {DROP TABLE tbl2}}
79 do_test select2-2.0.2 {
81 execsql {CREATE TABLE tbl2(f1 int, f2 int, f3 int); BEGIN;}
82 for {set i 1} {$i<=30000} {incr i} {
85 execsql "INSERT INTO tbl2 VALUES($i,$i2,$i3)"
91 puts "time without cache: $t2"
93 do_test select2-2.0.3 {
94 expr {[lindex $t1 0]<[lindex $t2 0]}
99 execsql {SELECT count(*) FROM tbl2}
101 do_test select2-2.2 {
102 execsql {SELECT count(*) FROM tbl2 WHERE f2>1000}
105 do_test select2-3.1 {
106 execsql {SELECT f1 FROM tbl2 WHERE 1000=f2}
109 do_test select2-3.2a {
110 execsql {CREATE INDEX idx1 ON tbl2(f2)}
112 do_test select2-3.2b {
113 execsql {SELECT f1 FROM tbl2 WHERE 1000=f2}
115 do_test select2-3.2c {
116 execsql {SELECT f1 FROM tbl2 WHERE f2=1000}
118 do_test select2-3.2d {
119 set sqlite_search_count 0
120 execsql {SELECT * FROM tbl2 WHERE 1000=f2}
121 set sqlite_search_count
123 do_test select2-3.2e {
124 set sqlite_search_count 0
125 execsql {SELECT * FROM tbl2 WHERE f2=1000}
126 set sqlite_search_count
129 # Make sure queries run faster with an index than without
131 do_test select2-3.3 {
132 execsql {DROP INDEX idx1}
133 set sqlite_search_count 0
134 execsql {SELECT f1 FROM tbl2 WHERE f2==2000}
135 set sqlite_search_count
138 # Make sure we can optimize functions in the WHERE clause that
139 # use fields from two or more different table. (Bug #6)
141 do_test select2-4.1 {
145 INSERT INTO aa VALUES(1);
146 INSERT INTO aa VALUES(3);
147 INSERT INTO bb VALUES(2);
148 INSERT INTO bb VALUES(4);
149 SELECT * FROM aa, bb WHERE max(a,b)>2;
152 do_test select2-4.2 {
154 INSERT INTO bb VALUES(0);
155 SELECT * FROM aa, bb WHERE b;
158 do_test select2-4.3 {
160 SELECT * FROM aa, bb WHERE NOT b;
163 do_test select2-4.4 {
165 SELECT * FROM aa, bb WHERE min(a,b);
168 do_test select2-4.5 {
170 SELECT * FROM aa, bb WHERE NOT min(a,b);
173 do_test select2-4.6 {
175 SELECT * FROM aa, bb WHERE CASE WHEN a=b-1 THEN 1 END;
178 do_test select2-4.7 {
180 SELECT * FROM aa, bb WHERE CASE WHEN a=b-1 THEN 0 ELSE 1 END;