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| author | evgen@moonbone.local <> | 2007-09-28 23:24:40 +0000 |
|---|---|---|
| committer | evgen@moonbone.local <> | 2007-09-28 23:24:40 +0000 |
| commit | b9e81c2ae3f838194f181b8fb1b389dd42334211 (patch) | |
| tree | 8eac86ce3439f35209aaa770d4d2cb7e11a96297 /sql/sql_select.cc | |
| parent | fca2a0c4acb8c92b0be667cc7a934d5abb10be4e (diff) | |
| download | mariadb-git-b9e81c2ae3f838194f181b8fb1b389dd42334211.tar.gz | |
Bug#27990: Wrong info in MYSQL_FIELD struct members when a tmp table was used.
The change_to_use_tmp_fields function leaves the orig_table member of an
expression's tmp table field filled for the new Item_field being created.
Later orig_table is used by the Field::make_field function to provide some
info about original table and field name to a user. This is ok for a field
but for an expression it should be empty.
The change_to_use_tmp_fields function now resets orig_table member of
an expression's tmp table field to prevent providing a wrong info to a user.
The Field::make_field function now resets the table_name and the org_col_name
variables when the orig_table is set to 0.
Diffstat (limited to 'sql/sql_select.cc')
| -rw-r--r-- | sql/sql_select.cc | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sql/sql_select.cc b/sql/sql_select.cc index 08780efbedb..cc6184c6206 100644 --- a/sql/sql_select.cc +++ b/sql/sql_select.cc @@ -14119,6 +14119,9 @@ change_to_use_tmp_fields(THD *thd, Item **ref_pointer_array, item_field= (Item*) new Item_field(field); if (!item_field) DBUG_RETURN(TRUE); // Fatal error + + if (item->real_item()->type() != Item::FIELD_ITEM) + field->orig_table= 0; item_field->name= item->name; #ifndef DBUG_OFF if (_db_on_ && !item_field->name) |