for Item_param we have to have value set instead of fave item fixed (BUG#3353)

fixed outer joins
test of different joins included


sql/item.cc:
  for Item_param we have to have value set instead of fave item fixed
sql/sql_base.cc:
  fixed PS with outer joins
tests/client_test.c:
  test of different types of joins

sql/item.cc

@@ -713,7 +713,7 @@ bool Item_param::get_time(TIME *res)
 
 double Item_param::val() 
 {
-  DBUG_ASSERT(fixed == 1);
+  DBUG_ASSERT(value_is_set == 1);
   int err;
   switch (item_result_type) {
   case STRING_RESULT:
@@ -729,7 +729,7 @@ double Item_param::val()
 
 longlong Item_param::val_int() 
 { 
-  DBUG_ASSERT(fixed == 1);
+  DBUG_ASSERT(value_is_set == 1);
   int err;
   switch (item_result_type) {
   case STRING_RESULT:
@@ -746,7 +746,7 @@ longlong Item_param::val_int()
 
 String *Item_param::val_str(String* str) 
 { 
-  DBUG_ASSERT(fixed == 1);
+  DBUG_ASSERT(value_is_set == 1);
   switch (item_result_type) {
   case INT_RESULT:
     str->set(int_value, &my_charset_bin);
@@ -766,7 +766,7 @@ String *Item_param::val_str(String* str)
 
 String *Item_param::query_val_str(String* str) 
 {
-  DBUG_ASSERT(fixed == 1);
+  DBUG_ASSERT(value_is_set == 1);
   switch (item_result_type) {
   case INT_RESULT:
   case REAL_RESULT:

sql/sql_base.cc

@@ -2469,6 +2469,9 @@ int setup_conds(THD *thd,TABLE_LIST *tables,COND **conds)
       }
       thd->lex->current_select->cond_count+= cond_and->list.elements;
 
+      // to prevent natural join processing during PS re-execution
+      table->natural_join= 0;
+
       if (!table->outer_join)			// Not left join
       {
 	*conds= and_conds(*conds, cond_and);

tests/client_test.c

@@ -8495,13 +8495,21 @@ static void test_bug3117()
 }
 
 
-static void test_on()
+static void jest_join()
 {
   MYSQL_STMT *stmt;
-  int rc, i;
-  const char *query= "SELECT * FROM t2 join t1 on (t1.a=t2.a)";
-
-  myheader("test_on");
+  int rc, i, j;
+  const char *query[]={"SELECT * FROM t2 join t1 on (t1.a=t2.a)",
+		       "SELECT * FROM t2 natural join t1",
+		       "SELECT * FROM t2 join t1 using(a)",
+		       "SELECT * FROM t2 left join t1 on(t1.a=t2.a)",
+		       "SELECT * FROM t2 natural left join t1",
+		       "SELECT * FROM t2 left join t1 using(a)",
+		       "SELECT * FROM t2 right join t1 on(t1.a=t2.a)",
+		       "SELECT * FROM t2 natural right join t1",
+		       "SELECT * FROM t2 right join t1 using(a)"};
+
+  myheader("jest_join");
   
   rc = mysql_query(mysql, "DROP TABLE IF EXISTS t1,t2");
   myquery(rc);
@@ -8513,10 +8521,15 @@ static void test_on()
 		  "insert into t1 values (1,1), (2, 2), (3,3), (4,4), (5,5);");
   myquery(rc);
 
-  rc= mysql_query(mysql,"create table t2 select * from t1;");
+  rc= mysql_query(mysql,"CREATE TABLE t2 (a int , c int);");
   myquery(rc);
 
-  stmt= mysql_prepare(mysql, query, strlen(query));
+  rc= mysql_query(mysql,
+		  "insert into t2 values (1,1), (2, 2), (3,3), (4,4), (5,5);");
+
+  for (j= 0; j < 9; j++)
+  {
+    stmt= mysql_prepare(mysql, query[j], strlen(query[j]));
     mystmt_init(stmt);
     for (i= 0; i < 3; i++)
     {
@@ -8525,6 +8538,7 @@ static void test_on()
       assert(5 == my_process_stmt_result(stmt));
     }
     mysql_stmt_close(stmt);
+  }
 
   rc= mysql_query(mysql, "DROP TABLE t1,t2");
   myquery(rc);
@@ -8836,7 +8850,7 @@ int main(int argc, char **argv)
 			       Item_field -> Item_ref */
     test_union();	    /* test union with prepared statements */
     test_bug3117();	    /* BUG#3117: LAST_INSERT_ID() */
-    test_on();		    /* ... join ... on(), BUG#2794 */
+    jest_join();	    /* different kinds of join, BUG#2794 */
     test_selecttmp();	    /* temporary table used in select execution */