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Manual merge from mysql-5.1 for Bug#11764168 (56976: Severe denial

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of service in prepared statements).

sql/sql_prepare.cc:
  At mysql_stmt_get_longdata(): instead of pushing an internal
  error handler (as done in 5.1-tree) we save, set and restore
  the statement's diagnostics area and warning info.
This commit is contained in:
Dmitry Shulga
2011-03-15 18:57:36 +06:00
parent f94e7288e3 9320dca994
commit feb6d22328
12 changed files with 161 additions and 11 deletions
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3
mysql-test/r/variables.result
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@@ -1540,6 +1540,9 @@ ERROR HY000: Cannot drop default keycache
SET @@global.key_cache_block_size=0;
Warnings:
Warning 1292 Truncated incorrect key_cache_block_size value: '0'
select @@max_long_data_size;
@@max_long_data_size
1048576
SET @@global.max_binlog_cache_size=DEFAULT;
SET @@global.max_join_size=DEFAULT;
SET @@global.key_buffer_size=@kbs;