diff -r 000000000000 -r bde4ae8d615e os/persistentdata/persistentstorage/sqlite3api/TEST/TclScript/join3.test --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/os/persistentdata/persistentstorage/sqlite3api/TEST/TclScript/join3.test Fri Jun 15 03:10:57 2012 +0200 @@ -0,0 +1,62 @@ +# 2002 May 24 +# +# The author disclaims copyright to this source code. In place of +# a legal notice, here is a blessing: +# +# May you do good and not evil. +# May you find forgiveness for yourself and forgive others. +# May you share freely, never taking more than you give. +# +#*********************************************************************** +# This file implements regression tests for SQLite library. +# +# This file implements tests for joins, including outer joins, where +# there are a large number of tables involved in the join. +# +# $Id: join3.test,v 1.4 2005/01/19 23:24:51 drh Exp $ + +set testdir [file dirname $argv0] +source $testdir/tester.tcl + +# An unrestricted join +# +catch {unset ::result} +set result {} +for {set N 1} {$N<=$bitmask_size} {incr N} { + lappend result $N + do_test join3-1.$N { + execsql "CREATE TABLE t${N}(x);" + execsql "INSERT INTO t$N VALUES($N)" + set sql "SELECT * FROM t1" + for {set i 2} {$i<=$N} {incr i} {append sql ", t$i"} + execsql $sql + } $result +} + +# Joins with a comparison +# +set result {} +for {set N 1} {$N<=$bitmask_size} {incr N} { + lappend result $N + do_test join3-2.$N { + set sql "SELECT * FROM t1" + for {set i 2} {$i<=$N} {incr i} {append sql ", t$i"} + set sep WHERE + for {set i 1} {$i<$N} {incr i} { + append sql " $sep t[expr {$i+1}].x==t$i.x+1" + set sep AND + } + execsql $sql + } $result +} + +# Error of too many tables in the join +# +do_test join3-3.1 { + set sql "SELECT * FROM t1 AS t0, t1" + for {set i 2} {$i<=$bitmask_size} {incr i} {append sql ", t$i"} + catchsql $sql +} [list 1 "at most $bitmask_size tables in a join"] + + +finish_test