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A fix and a test case for Bug#6513 "Test Suite: Values inserted by using

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cursor is interpreted latin1 character and Bug#9819 "Cursors: Mysql Server
Crash while fetching from table with 5 million records."
A fix for a possible memory leak when fetching into an SP cursor
in a long loop.
The patch uses a common implementation of cursors in the binary protocol and 
in stored procedures and implements materialized cursors.
For implementation details, see comments in sql_cursor.cc
This commit is contained in:
konstantin@mysql.com
2005-09-22 02:11:21 +04:00
parent e89c5220b5
commit 6f8d3c4844
30 changed files with 1567 additions and 857 deletions
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24
sql/protocol.h
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@ -150,30 +150,6 @@ public:
virtual bool store(Field *field);
};
class Protocol_cursor :public Protocol_simple
{
public:
MEM_ROOT *alloc;
MYSQL_FIELD *fields;
MYSQL_ROWS *data;
MYSQL_ROWS **prev_record;
ulong row_count;
Protocol_cursor() :data(NULL) {}
Protocol_cursor(THD *thd_arg, MEM_ROOT *ini_alloc) :Protocol_simple(thd_arg), alloc(ini_alloc), data(NULL) {}
bool prepare_for_send(List<Item> *item_list)
{
row_count= 0;
fields= NULL;
data= NULL;
prev_record= &data;
return Protocol_simple::prepare_for_send(item_list);
}
bool send_fields(List<Item> *list, uint flags);
bool write();
uint get_field_count() { return field_count; }
};
void send_warning(THD *thd, uint sql_errno, const char *err=0);
void net_printf_error(THD *thd, uint sql_errno, ...);
void net_send_error(THD *thd, uint sql_errno=0, const char *err=0);