diff options
Diffstat (limited to 'sql/item.h')
| -rw-r--r-- | sql/item.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/sql/item.h b/sql/item.h index 1db4e62051c..e662eed4a71 100644 --- a/sql/item.h +++ b/sql/item.h @@ -2224,7 +2224,12 @@ public: ~Item_result_field() {} /* Required with gcc 2.95 */ Field *get_tmp_table_field() { return result_field; } Field *tmp_table_field(TABLE *t_arg) { return result_field; } - table_map used_tables() const { return true; } + /* + This implementation of used_tables() used by Item_avg_field and + Item_variance_field which work when only temporary table left, so theu + return table map of the temporary table. + */ + table_map used_tables() const { return 1; } void set_result_field(Field *field) { result_field= field; } bool is_result_field() { return true; } void save_in_result_field(bool no_conversions) |