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Fix for bug #6840: Default value is not checked in ALTER column SET DEFAULT 'x'

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This commit is contained in:
gluh@gluh.mysql.r18.ru
2004-12-07 14:08:56 +03:00
parent 2775350d92
commit 069438d1bb
3 changed files with 48 additions and 25 deletions
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50
sql/sql_table.cc
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@@ -485,43 +485,45 @@ int mysql_prepare_table(THD *thd, HA_CREATE_INFO *create_info,
DBUG_RETURN(-1);
}
if ((sql_field->sql_type == FIELD_TYPE_SET ||
sql_field->sql_type == FIELD_TYPE_ENUM) && !sql_field->interval)
if (sql_field->sql_type == FIELD_TYPE_SET ||
sql_field->sql_type == FIELD_TYPE_ENUM)
{
uint32 dummy;
CHARSET_INFO *cs= sql_field->charset;
TYPELIB *interval;
TYPELIB *interval= sql_field->interval;
/*
Create typelib from interval_list, and if necessary
convert strings from client character set to the
column character set.
*/
interval= sql_field->interval= typelib(sql_field->interval_list);
List_iterator<String> it(sql_field->interval_list);
String conv, *tmp;
for (uint i= 0; (tmp= it++); i++)
if (!interval)
{
if (String::needs_conversion(tmp->length(), tmp->charset(), cs, &dummy))
interval= sql_field->interval= typelib(sql_field->interval_list);
List_iterator<String> it(sql_field->interval_list);
String conv, *tmp;
for (uint i= 0; (tmp= it++); i++)
{
uint cnv_errs;
conv.copy(tmp->ptr(), tmp->length(), tmp->charset(), cs, &cnv_errs);
char *buf= (char*) sql_alloc(conv.length()+1);
memcpy(buf, conv.ptr(), conv.length());
buf[conv.length()]= '\0';
interval->type_names[i]= buf;
interval->type_lengths[i]= conv.length();
if (String::needs_conversion(tmp->length(), tmp->charset(),
cs, &dummy))
{
uint cnv_errs;
conv.copy(tmp->ptr(), tmp->length(), tmp->charset(), cs, &cnv_errs);
char *buf= (char*) sql_alloc(conv.length()+1);
memcpy(buf, conv.ptr(), conv.length());
buf[conv.length()]= '\0';
interval->type_names[i]= buf;
interval->type_lengths[i]= conv.length();
}
// Strip trailing spaces.
uint lengthsp= cs->cset->lengthsp(cs, interval->type_names[i],
interval->type_lengths[i]);
interval->type_lengths[i]= lengthsp;
((uchar *)interval->type_names[i])[lengthsp]= '\0';
}
// Strip trailing spaces.
uint lengthsp= cs->cset->lengthsp(cs, interval->type_names[i],
interval->type_lengths[i]);
interval->type_lengths[i]= lengthsp;
((uchar *)interval->type_names[i])[lengthsp]= '\0';
sql_field->interval_list.empty(); // Don't need interval_list anymore
}
sql_field->interval_list.empty(); // Don't need interval_list anymore
/*
Convert the default value from client character