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test/tkt3911.test

58 строк1 KB

drh

Make sure nested queries with USING clauses do not leak memory.

12 июн 2009, 07:27

12 июн 2009, 07:27c3a8402

# 2009 June 11
#
# 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.
#
#***********************************************************************
#
# Tests to verify ticket #3911 is fixed.
#
# $Id: tkt3911.test,v 1.1 2009/06/12 03:27:28 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

do_test tkt3911.1 {
  execsql {
    CREATE TABLE t1(a,b);
    INSERT INTO t1 VALUES(1,2);
    INSERT INTO t1 VALUES(11,12);

    CREATE TABLE t2(b,c);
    INSERT INTO t2 VALUES(2,3);
    INSERT INTO t2 VALUES(22,23);

    SELECT * FROM t1 JOIN t2 USING(b);
  }
} {1 2 3}
do_test tkt3911.2 {
  db eval {
    SELECT * FROM t1 JOIN (t2) AS x USING (b);
  }
} {1 2 3}
do_test tkt3911.3 {
  db eval {
    SELECT * FROM t1 JOIN (SELECT * FROM t2) AS x USING (b);
  }
} {1 2 3}

do_test tkt3911.4 {
  db eval {
    CREATE TABLE t3(m,a);
    INSERT INTO t3 VALUES('one',1);
    INSERT INTO t3 VALUES('two',2);

    SELECT * FROM t3 JOIN (SELECT * FROM t1 NATURAL JOIN t2) AS x USING(a);
  }
} {one 1 2 3}
do_test tkt3911.5 {
  db eval {
    SELECT * FROM t3 JOIN (SELECT * FROM t1 JOIN t2 USING (b)) AS x USING(a);
  }
} {one 1 2 3}

finish_test