Return to join3.test CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / sqlite3 / test

Annotation of embedaddon/sqlite3/test/join3.test, revision 1.1.1.1

1.1       misho       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