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Fixed character set bug when replicating user variables

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sql/log_event.cc:
  Fixed character set bug when replicating user variables.
  Simple optimisation of User_var_log_event::write_data
This commit is contained in:
unknown 2003-03-05 16:10:40 +02:00
parent a6c0ea72d6
commit 401f3fb418
1 changed files with 17 additions and 13 deletions
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30
sql/log_event.cc
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@ -2030,6 +2030,7 @@ User_var_log_event::User_var_log_event(const char* buf, bool old_format)
if (is_null)
{
type= STRING_RESULT;
charset_number= my_charset_bin.number;
val_len= 0;
val= 0;
}
@ -2050,15 +2051,22 @@ int User_var_log_event::write_data(IO_CACHE* file)
char buf[UV_NAME_LEN_SIZE];
char buf1[UV_VAL_IS_NULL + UV_VAL_TYPE_SIZE +
UV_CHARSET_NUMBER_SIZE + UV_VAL_LEN_SIZE];
char buf2[8];
char *pos= buf2;
char buf2[8], *pos= buf2;
uint buf1_length;
int4store(buf, name_len);
buf1[0]= is_null;
if (!is_null)
if ((buf1[0]= is_null))
{
buf1_length= 1;
val_len= 0;
}
else
{
buf1[1]= type;
int4store(buf1 + 2, charset_number);
int4store(buf1 + 2 + UV_CHARSET_NUMBER_SIZE, val_len);
buf1_length= 10;
switch (type) {
case REAL_RESULT:
@ -2075,17 +2083,14 @@ int User_var_log_event::write_data(IO_CACHE* file)
DBUG_ASSERT(1);
return 0;
}
return (my_b_safe_write(file, (byte*) buf, sizeof(buf)) ||
my_b_safe_write(file, (byte*) name, name_len) ||
my_b_safe_write(file, (byte*) buf1, sizeof(buf1)) ||
my_b_safe_write(file, (byte*) pos, val_len));
}
return (my_b_safe_write(file, (byte*) buf, sizeof(buf)) ||
my_b_safe_write(file, (byte*) name, name_len) ||
my_b_safe_write(file, (byte*) buf1, 1));
my_b_safe_write(file, (byte*) name, name_len) ||
my_b_safe_write(file, (byte*) buf1, buf1_length) ||
my_b_safe_write(file, (byte*) pos, val_len));
}
/*****************************************************************************
User_var_log_event::print()
@ -2142,7 +2147,7 @@ void User_var_log_event::print(FILE* file, bool short_form, char* last_db)
int User_var_log_event::exec_event(struct st_relay_log_info* rli)
{
Item *it= 0;
CHARSET_INFO *charset= 0;
CHARSET_INFO *charset= get_charset(charset_number, MYF(0));
LEX_STRING user_var_name;
user_var_name.str= name;
user_var_name.length= name_len;
@ -2179,7 +2184,6 @@ int User_var_log_event::exec_event(struct st_relay_log_info* rli)
DBUG_ASSERT(1);
return 0;
}
charset= get_charset(charset_number, MYF(0));
}
Item_func_set_user_var e(user_var_name, it);
e.fix_fields(thd, 0, 0);