led to creating corrupted index.
While execution of the CREATE .. SELECT SQL_BUFFER_RESULT statement the
engine->start_bulk_insert function was called twice. On the first call
On the first call MyISAM disabled all non-unique indexes and on the second
call it decides to not re-enable them because all indexes was disabled.
Due to this no indexes was actually created during CREATE TABLE thus
producing crashed table.
Now the select_inset class has is_bulk_insert_mode flag which prevents
calling the start_bulk_insert function twice.
The flag is set in the select_create::prepare, select_insert::prepare2
functions and the select_insert class constructor.
The flag is reset in the select_insert::send_eof function.
mysql-test/t/insert_select.test:
A test case is added for the bug#30384: Having SQL_BUFFER_RESULT option in the
CREATE .. KEY(..) .. SELECT led to creating corrupted index.
mysql-test/r/insert_select.result:
A test case is added for the bug#30384: Having SQL_BUFFER_RESULT option in the
CREATE .. KEY(..) .. SELECT led to creating corrupted index.
sql/sql_class.h:
Bug#30384: Having SQL_BUFFER_RESULT option in the CREATE .. KEY(..) .. SELECT
led to creating corrupted index.
The is_bulk_insert_mode flag is added to the select_insert class.
sql/sql_insert.cc:
Bug#30384: Having SQL_BUFFER_RESULT option in the CREATE .. KEY(..) .. SELECT
led to creating corrupted index.
The is_bulk_insert_mode is set in the select_create::prepare, select_insert::prepare2
functions and the select_insert class constructor.
The flag is reset in the select_insert::send_eof function.
