Description:
This fails only recently in 5.1. Figuratively,
select udf(builtin());
Tagged showstopper because it's a regression in functionality.
How to repeat:
===== mysql-test/r/udf.result 1.9 vs edited =====
--- 1.9/mysql-test/r/udf.result 2006-12-01 09:43:22 -05:00
+++ edited/mysql-test/r/udf.result 2006-12-01 09:43:14 -05:00
@@ -106,6 +106,15 @@ id select_type table type possible_keys
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort
drop table t1;
End of 5.0 tests.
+select myfunc_double(acos(0));
+myfunc_double(acos(0))
+52.87
+select myfunc_double(myfunc_double(acos(0)));
+myfunc_double(myfunc_double(acos(0)))
+52.00
+select myfunc_double(myfunc_double(myfunc_double(acos(0))));
+myfunc_double(myfunc_double(myfunc_double(acos(0))))
+49.00
DROP FUNCTION metaphon;
DROP FUNCTION myfunc_double;
DROP FUNCTION myfunc_nonexist;
===== mysql-test/t/udf.test 1.10 vs edited =====
--- 1.10/mysql-test/t/udf.test 2006-12-01 09:43:23 -05:00
+++ edited/mysql-test/t/udf.test 2006-12-01 09:43:01 -05:00
@@ -129,6 +129,15 @@ explain select myfunc_int(f1) from t1 or
drop table t1;
--echo End of 5.0 tests.
+
+#
+# Bug#nnnn: UDFs can't use builtin functions as parameters
+#
+select myfunc_double(acos(0));
+select myfunc_double(myfunc_double(acos(0)));
+select myfunc_double(myfunc_double(myfunc_double(acos(0))));
+
+
#
# Drop the example functions from udf_example
#
Suggested fix:
According to Marc Alff,
"""In 5.1, the udf_list.push() and pop() are not balanced. The push is always done, the pop is done only if the function is not a built-in. So it's a merge issue from 5.0 -> 5.1.
I think udf_list has other issues."""
