Fix for bug #15225 (ANALYZE temporary has no effect)

mysql-test/r/analyze.result:
  test result fixed
mysql-test/t/analyze.test:
  test case added
sql/sql_table.cc:
  we don't need to remove temporary table from the cache,
  but we need to reload it's info

mysql-test/r/analyze.result

@@ -37,3 +37,12 @@ Field_name	Min_value	Max_value	Min_length	Max_length	Empties_or_zeros	Nulls	Avg_
 execute stmt1;
 Field_name	Min_value	Max_value	Min_length	Max_length	Empties_or_zeros	Nulls	Avg_value_or_avg_length	Std	Optimal_fieldtype
 deallocate prepare stmt1;
+create temporary table t1(a int, index(a));
+insert into t1 values('1'),('2'),('3'),('4'),('5');
+analyze table t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	OK
+show index from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	1	a	1	a	A	5	NULL	NULL	YES	BTREE	
+drop table t1;

mysql-test/t/analyze.test

@@ -48,4 +48,13 @@ execute stmt1;
 execute stmt1;
 deallocate prepare stmt1;
 
+#
+# bug#15225 (ANALYZE temporary has no effect)
+#
+create temporary table t1(a int, index(a));
+insert into t1 values('1'),('2'),('3'),('4'),('5');
+analyze table t1;
+show index from t1;
+drop table t1;
+
 # End of 4.1 tests

sql/sql_table.cc

@@ -2140,10 +2140,15 @@ send_result_message:
       table->table->version=0;			// Force close of table
     else if (open_for_modify)
     {
-      pthread_mutex_lock(&LOCK_open);
-      remove_table_from_cache(thd, table->table->table_cache_key,
-			      table->table->real_name, RTFC_NO_FLAG);
-      pthread_mutex_unlock(&LOCK_open);
+      if (table->table->tmp_table)
+        table->table->file->info(HA_STATUS_CONST);
+      else
+      {
+        pthread_mutex_lock(&LOCK_open);
+        remove_table_from_cache(thd, table->table->table_cache_key,
+                                table->table->real_name, RTFC_NO_FLAG);
+        pthread_mutex_unlock(&LOCK_open);
+      }
       /* May be something modified consequently we have to invalidate cache */
       query_cache_invalidate3(thd, table->table, 0);
     }