~drizzle-trunk/drizzle/development

SELECT SIGNAL("");

ERROR HY000: Unknown barrier requested.

SELECT SIGNAL(NULL);

ERROR HY000: Unknown barrier requested.

set @signal_name= "foo";

SELECT CREATE_BARRIER(@signal_name);

CREATE_BARRIER(@signal_name)

1

SELECT SIGNAL("FOO");

ERROR HY000: Unknown barrier requested.

SELECT SIGNAL("FoO");

ERROR HY000: Unknown barrier requested.

SELECT SIGNAL(@signal_name);

SIGNAL(@signal_name)

1

SELECT if ((SESSION_ID = CONNECTION_ID()), "YES", "NO"), GENERATION, WAIT_COUNT from DATA_DICTIONARY.USER_BARRIERS WHERE USER_BARRIER_NAME=@signal_name;

if ((SESSION_ID = CONNECTION_ID()), "YES", "NO")        GENERATION      WAIT_COUNT

YES     1       0

SELECT RELEASE_BARRIER(@signal_name);

RELEASE_BARRIER(@signal_name)

1