xref: /sqlite-3.40.0/test/index2.test (revision edb04ed9) 
1# 2005-01-11
2#
3# The author disclaims copyright to this source code.  In place of
4# a legal notice, here is a blessing:
5#
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.
9#
10#***********************************************************************
11# This file implements regression tests for SQLite library.  The
12# focus of this file is testing the CREATE INDEX statement.
13#
14
15set testdir [file dirname $argv0]
16source $testdir/tester.tcl
17
18# Create a table with a large number of columns
19#
20do_test index2-1.1 {
21  set sql {CREATE TABLE t1(}
22  for {set i 1} {$i<1000} {incr i} {
23    append sql "c$i,"
24  }
25  append sql "c1000);"
26  execsql $sql
27} {}
28do_test index2-1.2 {
29  set sql {INSERT INTO t1 VALUES(}
30  for {set i 1} {$i<1000} {incr i} {
31    append sql $i,
32  }
33  append sql {1000);}
34  execsql $sql
35} {}
36do_test index2-1.3 {
37  execsql {SELECT c123 FROM t1}
38} 123
39do_test index2-1.4 {
40  execsql BEGIN
41  for {set j 1} {$j<=100} {incr j} {
42    set sql {INSERT INTO t1 VALUES(}
43    for {set i 1} {$i<1000} {incr i} {
44      append sql [expr {$j*10000+$i}],
45    }
46    append sql "[expr {$j*10000+1000}]);"
47    execsql $sql
48  }
49  execsql COMMIT
50  execsql {SELECT count(*) FROM t1}
51} 101
52do_test index2-1.5 {
53  execsql {SELECT round(sum(c1000)) FROM t1}
54} {50601000.0}
55
56# Create indices with many columns
57#
58do_test index2-2.1 {
59  set sql "CREATE INDEX t1i1 ON t1("
60  for {set i 1} {$i<1000} {incr i} {
61    append sql c$i,
62  }
63  append sql c1000)
64  execsql $sql
65} {}
66do_test index2-2.2 {
67  ifcapable explain {
68    execsql {EXPLAIN SELECT c9 FROM t1 ORDER BY c1, c2, c3, c4, c5}
69  }
70  execsql {SELECT c9 FROM t1 ORDER BY c1, c2, c3, c4, c5, c6 LIMIT 5}
71} {9 10009 20009 30009 40009}
72
73finish_test
74