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-rw-r--r--sql/sql_cache.cc2
1 files changed, 2 insertions, 0 deletions
diff --git a/sql/sql_cache.cc b/sql/sql_cache.cc
index c6c5418e0cf..cf68ba36997 100644
--- a/sql/sql_cache.cc
+++ b/sql/sql_cache.cc
@@ -2306,6 +2306,8 @@ void Query_cache::invalidate(THD *thd, char *db)
if (is_disabled())
DBUG_VOID_RETURN;
+ DBUG_ASSERT(ok_for_lower_case_names(db));
+
bool restart= FALSE;
/*
Lock the query cache and queue all invalidation attempts to avoid