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-rw-r--r--sql/item.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/sql/item.cc b/sql/item.cc
index bc1ae683e93..c9edb7b8f6c 100644
--- a/sql/item.cc
+++ b/sql/item.cc
@@ -3010,7 +3010,7 @@ bool Item_param::convert_str_value(THD *thd)
str_value.set_charset(value.cs_info.final_character_set_of_str_value);
/* Here str_value is guaranteed to be in final_character_set_of_str_value */
- max_length= str_value.length();
+ max_length= str_value.numchars() * str_value.charset()->mbmaxlen;
decimals= 0;
/*
str_value_ptr is returned from val_str(). It must be not alloced