Bug#23409: Arguments of the ENCODE() and the DECODE() functions were not printed

correctly.

The Item_func::print method was used to print the Item_func_encode and the
Item_func_decode objects. The last argument to ENCODE and DECODE functions
is a plain C string and thus Item_func::print wasn't able to print it.

The print() method is added to the Item_func_encode class. It correctly
prints the Item_func_encode and the Item_func_decode objects.

1 files changed, 13 insertions, 0 deletions

diff --git a/sql/item_strfunc.cc b/sql/item_strfunc.cc
index f7408cb5e9f..7c98f0c6380 100644
--- a/sql/item_strfunc.cc
+++ b/sql/item_strfunc.cc
@@ -1583,6 +1583,19 @@ String *Item_func_encode::val_str(String *str)
   return res;
 }
 
+void Item_func_encode::print(String *str)
+{
+  str->append(func_name());
+  str->append('(');
+  args[0]->print(str);
+  str->append(',');
+  str->append('\'');
+  str->append(seed);
+  str->append('\'');
+  str->append(')');
+}
+
+
 String *Item_func_decode::val_str(String *str)
 {
   DBUG_ASSERT(fixed == 1);