summaryrefslogtreecommitdiff
path: root/sql/set_var.cc
diff options
context:
space:
mode:
authorunknown <ingo@mysql.com>2005-08-07 20:39:17 +0200
committerunknown <ingo@mysql.com>2005-08-07 20:39:17 +0200
commit9e5c20f31faa1488a0beb1c3f3ad509227d0dcf1 (patch)
tree4ef9625701d08f60d64213e805dad252b10b53ee /sql/set_var.cc
parent9cd28273aa1d65090fda2702d28a2300d62e653d (diff)
downloadmariadb-git-9e5c20f31faa1488a0beb1c3f3ad509227d0dcf1.tar.gz
Bug#10473 - Can't set 'key_buffer_size' system variable to ZERO
Give the user a warning if he tries to destroy the default key cache. mysql-test/r/key_cache.result: Bug#10473 - Can't set 'key_buffer_size' system variable to ZERO The test result. mysql-test/t/key_cache.test: Bug#10473 - Can't set 'key_buffer_size' system variable to ZERO The test case. sql/share/errmsg.txt: Bug#10473 - Can't set 'key_buffer_size' system variable to ZERO The new message string.
Diffstat (limited to 'sql/set_var.cc')
-rw-r--r--sql/set_var.cc5
1 files changed, 5 insertions, 0 deletions
diff --git a/sql/set_var.cc b/sql/set_var.cc
index ff37c46349d..637b33f18d2 100644
--- a/sql/set_var.cc
+++ b/sql/set_var.cc
@@ -2293,7 +2293,12 @@ bool sys_var_key_buffer_size::update(THD *thd, set_var *var)
if (!tmp) // Zero size means delete
{
if (key_cache == dflt_key_cache)
+ {
+ push_warning_printf(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
+ ER_WARN_CANT_DROP_DEFAULT_KEYCACHE,
+ ER(ER_WARN_CANT_DROP_DEFAULT_KEYCACHE));
goto end; // Ignore default key cache
+ }
if (key_cache->key_cache_inited) // If initied
{