# 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