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| author | Alexander Nozdrin <alexander.nozdrin@oracle.com> | 2011-05-06 17:39:20 +0400 |
|---|---|---|
| committer | Alexander Nozdrin <alexander.nozdrin@oracle.com> | 2011-05-06 17:39:20 +0400 |
| commit | 32a41e5a25b9683ef79f5787d211c96561637e77 (patch) | |
| tree | de9a20a6c8fddf18d59a1dd66965c327e19b2505 /include/mysql.h.pp | |
| parent | acbe82380eef7bf41966763b4fc82b17e4c7fb44 (diff) | |
| download | mariadb-git-32a41e5a25b9683ef79f5787d211c96561637e77.tar.gz | |
Patch for Bug#12374486 - SEVERE MEMORY LEAK IN PREPARED STATEMENTS
THAT CALL STORED PROCEDURES.
The bug was introduced by WL#4435. The problem was that if a stored
procedure generated a few result sets with different set of columns,
a new memory would be allocated after every EXECUTE for every
result set.
The fix is to introduce a new memory root in scope of MYSQL_STMT,
and to store result-set metadata in that memory root.
Diffstat (limited to 'include/mysql.h.pp')
| -rw-r--r-- | include/mysql.h.pp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/mysql.h.pp b/include/mysql.h.pp index 169a8b30e2b..15ec563dfc2 100644 --- a/include/mysql.h.pp +++ b/include/mysql.h.pp @@ -512,6 +512,7 @@ typedef struct st_mysql_bind my_bool is_null_value; void *extension; } MYSQL_BIND; +struct st_mysql_stmt_extension; typedef struct st_mysql_stmt { MEM_ROOT mem_root; @@ -541,7 +542,7 @@ typedef struct st_mysql_stmt unsigned char bind_result_done; my_bool unbuffered_fetch_cancelled; my_bool update_max_length; - void *extension; + struct st_mysql_stmt_extension *extension; } MYSQL_STMT; enum enum_stmt_attr_type { |