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sql_select.cc, item_buff.cc, item.h:

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Fixed bug #11088: a crash for queries with GROUP BY a BLOB column
  + COUNT(DISTINCT...) due to an attempt to allocate a too large
  buffer for the BLOB field.
  Now the size of the buffer is limited by max_sort_length.
group_by.test, group_by.result:
  Added a test case for bug #11088.


mysql-test/r/group_by.result:
  Added a test case for bug #11088.
mysql-test/t/group_by.test:
  Added a test case for bug #11088.
sql/item.h:
  Fixed bug #11088: a crash for queries with GROUP BY a BLOB column
  + COUNT(DISTINCT...) due to an attempt to allocate a too large
  buffer for the BLOB fields.
  Now the size of the buffer is limited by max_sort_length.
sql/item_buff.cc:
  Fixed bug #11088: a crash for queries with GROUP BY a BLOB column
  + COUNT(DISTINCT...) due to an attempt to allocate a too large
  buffer for the BLOB fields.
  Now the size of the buffer is limited by max_sort_length.
sql/sql_select.cc:
  Fixed bug #11088: a crash for queries with GROUP BY a BLOB column
  + COUNT(DISTINCT...) due to an attempt to allocate a too large
  buffer for the BLOB fields.
  Now the size of the buffer is limited by max_sort_length.
This commit is contained in:
unknown
2005-06-07 03:05:57 -07:00
parent 936b9319b8
commit 4da133cabf
5 changed files with 38 additions and 5 deletions
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11
mysql-test/r/group_by.result
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@ -711,3 +711,14 @@ select min(b) from t1;
min(b)
3000000000
drop table t1;
CREATE TABLE t1 (id int PRIMARY KEY, user_id int, hostname longtext);
INSERT INTO t1 VALUES
(1, 7, 'cache-dtc-af05.proxy.aol.com'),
(2, 3, 'what.ever.com'),
(3, 7, 'cache-dtc-af05.proxy.aol.com'),
(4, 7, 'cache-dtc-af05.proxy.aol.com');
SELECT hostname, COUNT(DISTINCT user_id) as no FROM t1
WHERE hostname LIKE '%aol%'
GROUP BY hostname;
hostname no
cache-dtc-af05.proxy.aol.com 1