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Bug #55580 : segfault in read_view_sees_trx_id

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The server was not checking for errors generated during
the execution of Item::val_xxx() methods when copying
data to the group, order, or distinct temp table's row.
Fixed by extending the copy_funcs() to return an error
code and by checking for that error code on the places
copy_funcs() is called. 
Test case added.
This commit is contained in:
Georgi Kodinov
2010-08-13 11:07:39 +03:00
parent b6e3adf10f
commit 12f7d57d42
5 changed files with 99 additions and 10 deletions
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2
sql/sql_select.h
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@@ -601,7 +601,7 @@ bool setup_copy_fields(THD *thd, TMP_TABLE_PARAM *param,
List<Item> &new_list1, List<Item> &new_list2,
uint elements, List<Item> &fields);
void copy_fields(TMP_TABLE_PARAM *param);
void copy_funcs(Item **func_ptr);
bool copy_funcs(Item **func_ptr, const THD *thd);
bool create_myisam_from_heap(THD *thd, TABLE *table, TMP_TABLE_PARAM *param,
int error, bool ignore_last_dupp_error);
uint find_shortest_key(TABLE *table, const key_map *usable_keys);