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Fix for crash in the case of non-string fields

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unknown 2002-03-20 17:33:10 +04:00
parent 474e64081b
commit bbde41e9f7
1 changed files with 15 additions and 8 deletions
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23
sql/filesort.cc
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@ -925,10 +925,13 @@ sortlength(SORT_FIELD *sortorder, uint s_length)
{
sortorder->length=sortorder->field->pack_length();
#ifdef USE_STRCOLL
// BAR TODO: need checking that it is really Field_str based class
CHARSET_INFO *cs=((Field_str*)(sortorder->field))->charset();
if (use_strcoll(cs) && !sortorder->field->binary())
sortorder->length= sortorder->length*cs->strxfrm_multiply;
if (!sortorder->field->binary())
{
// BAR TODO: need checking that it is really Field_str based class
CHARSET_INFO *cs=((Field_str*)(sortorder->field))->charset();
if (use_strcoll(cs))
sortorder->length= sortorder->length*cs->strxfrm_multiply;
}
#endif
}
if (sortorder->field->maybe_null())
@ -937,15 +940,19 @@ sortlength(SORT_FIELD *sortorder, uint s_length)
else
{
#ifdef USE_STRCOLL
// BAR TODO: need checking that it is really Field_str based class
CHARSET_INFO *cs=((Field_str*)(sortorder->field))->charset();
#endif
switch ((sortorder->result_type=sortorder->item->result_type())) {
case STRING_RESULT:
sortorder->length=sortorder->item->max_length;
#ifdef USE_STRCOLL
if (use_strcoll(cs) && !sortorder->item->binary)
sortorder->length= sortorder->length*cs->strxfrm_multiply;
if (!sortorder->item->binary)
{
// BAR TODO: need checking that it is really Field_str based class
CHARSET_INFO *cs=((Field_str*)(sortorder->field))->charset();
if (use_strcoll(cs))
sortorder->length= sortorder->length*cs->strxfrm_multiply;
}
#endif
break;
case INT_RESULT: