wasCSharpSQLite – Blame information for rev 4

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1 office 1 # 2002 May 24
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.
12 #
13 # This file implements tests for joins, including outer joins, where
14 # there are a large number of tables involved in the join.
15 #
16 # $Id: join3.test,v 1.4 2005/01/19 23:24:51 drh Exp $
17  
18 set testdir [file dirname $argv0]
19 source $testdir/tester.tcl
20  
21 # An unrestricted join
22 #
23 catch {unset ::result}
24 set result {}
25 for {set N 1} {$N<=$bitmask_size} {incr N} {
26 lappend result $N
27 do_test join3-1.$N {
28 execsql "CREATE TABLE t${N}(x);"
29 execsql "INSERT INTO t$N VALUES($N)"
30 set sql "SELECT * FROM t1"
31 for {set i 2} {$i<=$N} {incr i} {append sql ", t$i"}
32 execsql $sql
33 } $result
34 }
35  
36 # Joins with a comparison
37 #
38 set result {}
39 for {set N 1} {$N<=$bitmask_size} {incr N} {
40 lappend result $N
41 do_test join3-2.$N {
42 set sql "SELECT * FROM t1"
43 for {set i 2} {$i<=$N} {incr i} {append sql ", t$i"}
44 set sep WHERE
45 for {set i 1} {$i<$N} {incr i} {
46 append sql " $sep t[expr {$i+1}].x==t$i.x+1"
47 set sep AND
48 }
49 execsql $sql
50 } $result
51 }
52  
53 # Error of too many tables in the join
54 #
55 do_test join3-3.1 {
56 set sql "SELECT * FROM t1 AS t0, t1"
57 for {set i 2} {$i<=$bitmask_size} {incr i} {append sql ", t$i"}
58 catchsql $sql
59 } [list 1 "at most $bitmask_size tables in a join"]
60  
61  
62 finish_test