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A fix and a test case for Bug#11172 "mysql_stmt_attr_set

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CURSOR_TYPE_READ_ONLY date/datetime filter server crash".
The fix adds support for Item_change_list in cursors (proper rollback
of the modified item tree). 


sql/sql_class.cc:
  No need to call fatal_error() twice.
sql/sql_prepare.cc:
  - implement proper cleanup of the prepared statement in mysql_stmt_reset
    if there is a cursor.
  - take into account thd->change_list when fetching data through a
    cursor.
sql/sql_select.cc:
  - take into account thd->change_list when fetching data from a cursor:
    grab it when we open a cursor, and rollback the changes to the parsed
    tree when we close it.
sql/sql_select.h:
  - Cursor::change_list added
tests/mysql_client_test.c:
  - a test case for Bug#11172 "mysql_stmt_attr_set CURSOR_TYPE_READ_ONLY date/datetime
   filter server crash"
This commit is contained in:
unknown
2005-07-01 15:47:45 +04:00
parent 77532a6f57
commit d36c14f748
5 changed files with 113 additions and 21 deletions
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4
sql/sql_select.h
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@ -390,6 +390,7 @@ class Cursor: public Sql_alloc, public Query_arena
/* List of items created during execution */
query_id_t query_id;
public:
Item_change_list change_list;
select_send result;
/* Temporary implementation as now we replace THD state by value */
@ -402,7 +403,8 @@ public:
void fetch(ulong num_rows);
void reset() { join= 0; }
bool is_open() const { return join != 0; }
void close();
void close(bool is_active);
void set_unit(SELECT_LEX_UNIT *unit_arg) { unit= unit_arg; }
Cursor(THD *thd);