Events: crash with procedure which alters events with function
Post-review CS
This fix also changes the handling of KILL command combined with
subquery. It changes the error message given back to "not supported",
from parse error. The error for CREATE|ALTER EVENT has also been changed
to generate "not supported yet" instead of parse error.
In case of a SP call, the error is "not supported yet". This change
cleans the parser from code which should not belong to there. Still
LEX::expr_allows_subselect is existant because it simplifies the handling
of SQLCOM_HA_READ which forbids subselects.
mysql-test/r/events_bugs.result:
update resut
mysql-test/r/events_grant.result:
update result
mysql-test/r/kill.result:
the error message has been changed for KILL
mysql-test/t/events_bugs.test:
Update old tests with the new emitted error
Add a test case for
BUG#22830 Events: crash with procedure which alters events with function
mysql-test/t/events_grant.test:
add ORDER BY clause to keep the result deterministic.
mysql-test/t/kill.test:
use name of the error, and change the error
from parse error, to not supported
sql/sql_lex.cc:
Add an auxiliary function that checks whether SP and/or
tables are used in the statement. This function is helpful for
statements that cannot handle subqueries ans SP calls. Adding out
of the parser cleans the latter of handling of special cases and
letting it do its job of parsing.
sql/sql_lex.h:
helper function to check whether a table or SP was used
sql/sql_parse.cc:
Use LEX::table_or_sp_used() for SQLCOM_CREATE_EVENT, SQLCOM_ALTER_EVENT
and SQLCOM_KILL. SQLCOM_DROP event does not use `expr` rule and thus a check is
not needed.
sql/sql_yacc.yy:
Remove usage of LEX::expr_allows_subselect for CREATE|ALTER EVENT
and KILL. There is only one left occurence - SQLCOM_HAREAD, but it
adds one table to the list of tables
Introduced EVENTS.EVENT_DEFINITION, like ROUTINES.ROUTINE_DEFINITION
Hence, the contents of the current EVENTS.EVENT_BODY become the contents
of EVENT_DEFINITION. EVENT_BODY will contain always, for now, "SQL" (wo
quotes).
mysql-test/r/events.result:
update result
event_body -> event_definition
event_body -> SQL
mysql-test/r/events_grant.result:
update result
event_body -> event_definition
event_body -> SQL
mysql-test/r/information_schema.result:
update result
event_body -> event_definition
mysql-test/t/events.test:
update result
event_body -> event_definition
event_body -> SQL
mysql-test/t/events_grant.test:
update result
event_body -> event_definition
event_body -> SQL
sql/sql_show.cc:
Introduce enum_i_s_events_fields, because I hate recounting
all the time a field is changed.
Rename EVENT_BODY to EVENT_DEFINITION
Introduce EVENT_BODY after that to be "SQL"
(final fix for bug#16992 Events: Information schema troubles ) ?
