1# 2008 September 1 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# 12# This file implements regression tests for SQLite library. The 13# focus of this file is testing the fix for ticket #3346 14# 15# $Id: tkt3346.test,v 1.3 2008/12/09 13:12:57 drh Exp $ 16 17set testdir [file dirname $argv0] 18source $testdir/tester.tcl 19 20do_test tkt3346-1.1 { 21 db eval { 22 CREATE TABLE t1(a,b); 23 INSERT INTO t1 VALUES(2,'bob'); 24 INSERT INTO t1 VALUES(1,'alice'); 25 INSERT INTO t1 VALUES(3,'claire'); 26 SELECT *, ( SELECT y FROM (SELECT x.b='alice' AS y) ) 27 FROM ( SELECT * FROM t1 ) AS x; 28 } 29} {2 bob 0 1 alice 1 3 claire 0} 30do_test tkt3346-1.2 { 31 db eval { 32 SELECT b FROM (SELECT * FROM t1) AS x 33 WHERE (SELECT y FROM (SELECT x.b='alice' AS y))=0 34 } 35} {bob claire} 36do_test tkt3346-1.3 { 37 db eval { 38 SELECT b FROM (SELECT * FROM t1 ORDER BY a) AS x 39 WHERE (SELECT y FROM (SELECT a||b y FROM t1 WHERE t1.b=x.b))=(x.a||x.b) 40 } 41} {alice bob claire} 42do_test tkt3346-1.4 { 43 db eval { 44 SELECT b FROM (SELECT * FROM t1 ORDER BY a) AS x 45 WHERE (SELECT y FROM (SELECT a||b y FROM t1 WHERE t1.b=x.b))=('2'||x.b) 46 } 47} {bob} 48 49# Ticket #3530 50# 51# As shown by ticket #3346 above (see also ticket #3298) it is important 52# that a subquery in the result-set be able to look up through multiple 53# FROM levels in order to view tables in the FROM clause at the top level. 54# 55# But ticket #3530 shows us that a subquery in the FROM clause should not 56# be able to look up to higher levels: 57# 58do_test tkt3346-2.1 { 59 catchsql { 60 CREATE TABLE t2(a); 61 INSERT INTO t2 VALUES(1); 62 63 SELECT * FROM (SELECT * FROM t1 WHERE 1=x.a) AS x; 64 } 65} {1 {no such column: x.a}} 66 67finish_test 68