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Bug #20908: Crash if select @@""

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Zero-length variables caused failures when using the length to look
up the name in a hash.  Instead, signal that no zero-length name can
ever be found and that to encounter one is a syntax error.
This commit is contained in:
cmiller@maint1.mysql.com
2006-08-15 18:41:21 +02:00
parent 951eb48a62
commit 53bb6a47cd
4 changed files with 30 additions and 2 deletions
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11
mysql-test/t/variables.test
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@ -585,6 +585,16 @@ show variables like 'ssl%';
select @@log_queries_not_using_indexes;
show variables like 'log_queries_not_using_indexes';
#
# Bug#20908: Crash if select @@""
#
--error ER_PARSE_ERROR
select @@"";
--error ER_PARSE_ERROR
select @@&;
--error ER_PARSE_ERROR
select @@@;
--echo End of 5.0 tests
# This is at the very after the versioned tests, since it involves doing
@ -620,3 +630,4 @@ set global server_id =@my_server_id;
set global slow_launch_time =@my_slow_launch_time;
set global storage_engine =@my_storage_engine;
set global thread_cache_size =@my_thread_cache_size;