diff options
Diffstat (limited to 'sql/sql_select.cc')
| -rw-r--r-- | sql/sql_select.cc | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/sql/sql_select.cc b/sql/sql_select.cc index 5154bff78dd..02ec7ae08ed 100644 --- a/sql/sql_select.cc +++ b/sql/sql_select.cc @@ -9103,6 +9103,8 @@ setup_copy_fields(THD *thd, TMP_TABLE_PARAM *param, param->copy_funcs.empty(); for (i= 0; (pos= li++); i++) { + Field *field; + char *tmp; if (pos->type() == Item::FIELD_ITEM) { Item_field *item; @@ -9131,14 +9133,22 @@ setup_copy_fields(THD *thd, TMP_TABLE_PARAM *param, set up save buffer and change result_field to point at saved value */ - Field *field= item->field; + field= item->field; item->result_field=field->new_field(thd->mem_root,field->table); - char *tmp=(char*) sql_alloc(field->pack_length()+1); + /* + We need to allocate one extra byte for null handling and + another extra byte to not get warnings from purify in + Field_string::val_int + */ + tmp= (char*) sql_alloc(field->pack_length()+2); if (!tmp) goto err; copy->set(tmp, item->result_field); item->result_field->move_field(copy->to_ptr,copy->to_null_ptr,1); - copy++; +#ifdef HAVE_purify + copy->to_ptr[copy->from_length]= 0; +#endif + copy++; } } else if ((pos->type() == Item::FUNC_ITEM || |