diff options
Diffstat (limited to 'sql/table.cc')
| -rw-r--r-- | sql/table.cc | 59 |
1 files changed, 58 insertions, 1 deletions
diff --git a/sql/table.cc b/sql/table.cc index 67d4ebd713b..982d5e7ddc9 100644 --- a/sql/table.cc +++ b/sql/table.cc @@ -349,7 +349,7 @@ int openfrm(THD *thd, const char *name, const char *alias, uint db_stat, char *buff; if (!(buff= alloc_root(&outparam->mem_root, n_length))) goto err; - if (my_pread(file, buff, n_length, record_offset + share->reclength, + if (my_pread(file, (byte*)buff, n_length, record_offset + share->reclength, MYF(MY_NABP))) goto err; share->connect_string.length= uint2korr(buff); @@ -1691,6 +1691,63 @@ db_type get_table_type(THD *thd, const char *name) DBUG_RETURN(ha_checktype(thd,(enum db_type) (uint) *(head+3),0,0)); } +/* + Create Item_field for each column in the table. + + SYNPOSIS + st_table::fill_item_list() + item_list a pointer to an empty list used to store items + + DESCRIPTION + Create Item_field object for each column in the table and + initialize it with the corresponding Field. New items are + created in the current THD memory root. + + RETURN VALUE + 0 success + 1 out of memory +*/ + +bool st_table::fill_item_list(List<Item> *item_list) const +{ + /* + All Item_field's created using a direct pointer to a field + are fixed in Item_field constructor. + */ + for (Field **ptr= field; *ptr; ptr++) + { + Item_field *item= new Item_field(*ptr); + if (!item || item_list->push_back(item)) + return TRUE; + } + return FALSE; +} + +/* + Reset an existing list of Item_field items to point to the + Fields of this table. + + SYNPOSIS + st_table::fill_item_list() + item_list a non-empty list with Item_fields + + DESCRIPTION + This is a counterpart of fill_item_list used to redirect + Item_fields to the fields of a newly created table. + The caller must ensure that number of items in the item_list + is the same as the number of columns in the table. +*/ + +void st_table::reset_item_list(List<Item> *item_list) const +{ + List_iterator_fast<Item> it(*item_list); + for (Field **ptr= field; *ptr; ptr++) + { + Item_field *item_field= (Item_field*) it++; + DBUG_ASSERT(item_field != 0); + item_field->reset_field(*ptr); + } +} /* calculate md5 of query |