2 #pragma ident "%Z%%M% %I% %E% SMI"
6 # The author disclaims copyright to this source code. In place of
7 # a legal notice, here is a blessing:
9 # May you do good and not evil.
10 # May you find forgiveness for yourself and forgive others.
11 # May you share freely, never taking more than you give.
13 #***********************************************************************
14 # This file implements regression tests for SQLite library. The
15 # focus of this file is testing the SELECT statement.
17 # $Id: select2.test,v 1.18 2002/04/02 13:26:11 drh Exp $
19 set testdir [file dirname $argv0]
20 source $testdir/tester.tcl
22 # Create a table with some data
24 execsql {CREATE TABLE tbl1(f1 int, f2 int)}
25 set f [open ./testdata1.txt w]
26 for {set i 0} {$i<=30} {incr i} {
27 puts $f "[expr {$i%9}]\t[expr {$i%10}]"
30 execsql {COPY tbl1 FROM './testdata1.txt'}
31 file delete -force ./testdata1.txt
34 # Do a second query inside a first.
37 set sql {SELECT DISTINCT f1 FROM tbl1 ORDER BY f1}
42 set sql2 "SELECT f2 FROM tbl1 WHERE f1=$f1 ORDER BY f2"
48 } {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}
51 set sql {SELECT DISTINCT f1 FROM tbl1 WHERE f1>3 AND f1<5}
56 set sql2 "SELECT f2 FROM tbl1 WHERE f1=$f1 ORDER BY f2"
64 # Create a largish table
67 execsql {CREATE TABLE tbl2(f1 int, f2 int, f3 int)}
68 set f [open ./testdata1.txt w]
69 for {set i 1} {$i<=30000} {incr i} {
70 puts $f "$i\t[expr {$i*2}]\t[expr {$i*3}]"
73 # execsql {--vdbe-trace-on--}
74 execsql {COPY tbl2 FROM './testdata1.txt'}
75 file delete -force ./testdata1.txt
79 execsql {SELECT count(*) FROM tbl2}
82 execsql {SELECT count(*) FROM tbl2 WHERE f2>1000}
86 execsql {SELECT f1 FROM tbl2 WHERE 1000=f2}
89 do_test select2-3.2a {
90 execsql {CREATE INDEX idx1 ON tbl2(f2)}
93 do_test select2-3.2b {
94 execsql {SELECT f1 FROM tbl2 WHERE 1000=f2}
96 do_test select2-3.2c {
97 execsql {SELECT f1 FROM tbl2 WHERE f2=1000}
99 do_test select2-3.2d {
100 set sqlite_search_count 0
101 execsql {SELECT * FROM tbl2 WHERE 1000=f2}
102 set sqlite_search_count
104 do_test select2-3.2e {
105 set sqlite_search_count 0
106 execsql {SELECT * FROM tbl2 WHERE f2=1000}
107 set sqlite_search_count
110 # Make sure queries run faster with an index than without
112 do_test select2-3.3 {
113 execsql {DROP INDEX idx1}
114 set sqlite_search_count 0
115 execsql {SELECT f1 FROM tbl2 WHERE f2==2000}
116 set sqlite_search_count
119 # Make sure we can optimize functions in the WHERE clause that
120 # use fields from two or more different table. (Bug #6)
122 do_test select2-4.1 {
126 INSERT INTO aa VALUES(1);
127 INSERT INTO aa VALUES(3);
128 INSERT INTO bb VALUES(2);
129 INSERT INTO bb VALUES(4);
130 SELECT * FROM aa, bb WHERE max(a,b)>2;
133 do_test select2-4.2 {
135 INSERT INTO bb VALUES(0);
136 SELECT * FROM aa, bb WHERE b;
139 do_test select2-4.3 {
141 SELECT * FROM aa, bb WHERE NOT b;
144 do_test select2-4.4 {
146 SELECT * FROM aa, bb WHERE min(a,b);
149 do_test select2-4.5 {
151 SELECT * FROM aa, bb WHERE NOT min(a,b);
154 do_test select2-4.6 {
156 SELECT * FROM aa, bb WHERE CASE WHEN a=b-1 THEN 1 END;
159 do_test select2-4.7 {
161 SELECT * FROM aa, bb WHERE CASE WHEN a=b-1 THEN 0 ELSE 1 END;