support upsert x=x+values(x) expressions

mysql-test/suite/tokudb/r/fast_upsert_values.result

+set default_storage_engine='tokudb';
+drop table if exists t;
+set tokudb_disable_slow_upsert=1;
+create table t (id int primary key, x int not null);
+insert noar into t values (1,1);
+insert noar into t values (1,1) on duplicate key update x=x+1;
+select * from t;
+id	x
+1	2
+insert noar into t values (1,10) on duplicate key update x=values(x)+1;
+ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
+select * from t;
+id	x
+1	2
+insert noar into t values (1,10) on duplicate key update x=x+values(x);
+select * from t;
+id	x
+1	12
+insert noar into t values (1,100) on duplicate key update x=x+values(x);
+select * from t;
+id	x
+1	112
+drop table t;

mysql-test/suite/tokudb/t/fast_upsert_values.test

+# verify that values(x) works in update expression
+
+source include/have_tokudb.inc;
+
+set default_storage_engine='tokudb';
+
+disable_warnings;
+drop table if exists t;
+enable_warnings;
+
+set tokudb_disable_slow_upsert=1;
+
+create table t (id int primary key, x int not null);
+
+insert noar into t values (1,1);
+insert noar into t values (1,1) on duplicate key update x=x+1;
+select * from t;
+
+replace_regex /MariaDB/XYZ/ /MySQL/XYZ/;
+error ER_UNSUPPORTED_EXTENSION;
+insert noar into t values (1,10) on duplicate key update x=values(x)+1;
+select * from t;
+
+insert noar into t values (1,10) on duplicate key update x=x+values(x);
+select * from t;
+
+insert noar into t values (1,100) on duplicate key update x=x+values(x);
+select * from t;
+
+drop table t;
+
+