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A fix (bug #6475: Another server crash in 5.0.2

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bug #6515: count(distinct...) crashes the server)


mysql-test/r/count_distinct.result:
  A test case (bug #6515: count(distinct...) crashes the server)
mysql-test/r/func_gconcat.result:
  A test case (bug #6475: Another server crash in 5.0.2)
mysql-test/t/count_distinct.test:
  A test case (bug #6515: count(distinct...) crashes the server)
mysql-test/t/func_gconcat.test:
  A test case (bug #6475: Another server crash in 5.0.2)
sql/sql_select.cc:
  A fix (bug #6475: Another server crash in 5.0.2
         bug #6515: count(distinct...) crashes the server)
  In order to prevent repeated setup() call in the JOIN::make_sum_func_list(),
  the code was splitted: new setup_sum_funcs() was introduced.
  Note: we don't call setup_sum_funcs() in the opt_range.cc:get_best_group_min_max().
This commit is contained in:
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2004-11-10 14:36:21 +04:00
parent 20c82f5c01
commit 0c9bae6e8e
5 changed files with 64 additions and 11 deletions
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9
mysql-test/t/func_gconcat.test
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@ -277,3 +277,12 @@ select group_concat(b order by b) from t1 group by a;
select group_concat(distinct b order by b) from t1 group by a;
drop table t1;
#
# Bug #6475
#
create table t1 (a char(3), b char(20), primary key (a, b));
insert into t1 values ('ABW', 'Dutch'), ('ABW', 'English');
select group_concat(a) from t1 group by b;
drop table t1;