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# 2008 September 1
#
# 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. The
# focus of this file is testing the fix for ticket #3346
#
# $Id: tkt3346.test,v 1.3 2008/12/09 13:12:57 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
do_test tkt3346-1.1 {
db eval {
CREATE TABLE t1(a,b);
INSERT INTO t1 VALUES(2,'bob');
INSERT INTO t1 VALUES(1,'alice');
INSERT INTO t1 VALUES(3,'claire');
SELECT *, ( SELECT y FROM (SELECT x.b='alice' AS y) )
FROM ( SELECT * FROM t1 ) AS x;
}
} {2 bob 0 1 alice 1 3 claire 0}
do_test tkt3346-1.2 {
db eval {
SELECT b FROM (SELECT * FROM t1) AS x
WHERE (SELECT y FROM (SELECT x.b='alice' AS y))=0
}
} {bob claire}
do_test tkt3346-1.3 {
db eval {
SELECT b FROM (SELECT * FROM t1 ORDER BY a) AS x
WHERE (SELECT y FROM (SELECT a||b y FROM t1 WHERE t1.b=x.b))=(x.a||x.b)
}
} {alice bob claire}
do_test tkt3346-1.4 {
db eval {
SELECT b FROM (SELECT * FROM t1 ORDER BY a) AS x
WHERE (SELECT y FROM (SELECT a||b y FROM t1 WHERE t1.b=x.b))=('2'||x.b)
}
} {bob}
# Ticket #3530
#
# As shown by ticket #3346 above (see also ticket #3298) it is important
# that a subquery in the result-set be able to look up through multiple
# FROM levels in order to view tables in the FROM clause at the top level.
#
# But ticket #3530 shows us that a subquery in the FROM clause should not
# be able to look up to higher levels:
#
do_test tkt3346-2.1 {
catchsql {
CREATE TABLE t2(a);
INSERT INTO t2 VALUES(1);
SELECT * FROM (SELECT * FROM t1 WHERE 1=x.a) AS x;
}
} {1 {no such column: x.a}}
finish_test
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