mirror of
https://github.com/MariaDB/server.git
synced 2025-01-16 03:52:35 +01:00
b25ad1bc47
The problem happened because Item_ident_for_show did not implement val_native(). Solution: - Removing class Item_ident_for_show - Implementing a new method Protocol::send_list_fields() instead, which accepts a List<Field> instead of List<Item> as input. Now no any Item creation is done during mysqld_list_fields(). Adding helper methods, to reuse the code easier: - Moved a part of Protocol::send_result_set_metadata(), responsible for sending an individual field metadata, into a new method Protocol_text::store_field_metadata(). Reusing it in both send_list_fields() and send_result_set_metadata(). - Adding Protocol_text::store_field_metadata() - Adding Protocol_text::store_field_metadata_for_list_fields() Note, this patch also automatically fixed another bug: MDEV-18685 mysql_list_fields() returns DEFAULT 0 instead of DEFAULT NULL for view columns The reason for this bug was that Item_ident_for_show::val_xxx() and get_date() did not check field->is_null() before calling field->val_xxx()/get_date(). Now the default value is correctly sent by Protocol_text::store(Field*). |
||
|---|---|---|
| .. | ||
| examples | ||
| client_settings.h | ||
| CMakeLists.txt | ||
| emb_qcache.cc | ||
| emb_qcache.h | ||
| embedded_priv.h | ||
| lib_sql.cc | ||
| libmysql.c | ||
| libmysqld.c | ||
| libmysqld.def | ||
| libmysqld.rc | ||
| resource.h | ||