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    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 1.1.1.1 2012/02/21 17:04:16 misho Exp $
   16: 
   17: set testdir [file dirname $argv0]
   18: source $testdir/tester.tcl
   19: 
   20: do_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}
   30: do_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}
   36: do_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}
   42: do_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: #
   58: do_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: 
   67: finish_test