Fix for BUG#6808.

The problem was in that add_table_to_list was testing for duplicate tables
in a list of tables that included the created view.

mysql-test/r/view.result

@@ -1146,11 +1146,11 @@ create view v2 as select * from v1;
 alter view v1 as select * from v2;
 ERROR 42S02: Table 'test.v1' doesn't exist
 alter view v1 as select * from v1;
-ERROR 42000: Not unique table/alias: 'v1'
+ERROR 42S02: Table 'test.v1' doesn't exist
 create or replace view v1 as select * from v2;
 ERROR 42S02: Table 'test.v1' doesn't exist
 create or replace view v1 as select * from v1;
-ERROR 42000: Not unique table/alias: 'v1'
+ERROR 42S02: Table 'test.v1' doesn't exist
 drop view v2,v1;
 drop table t1;
 create table t1 (a int);
@@ -2186,3 +2186,7 @@ r_object_id	users_names
 120001a080000542	guser02
 drop view v1, v2;
 drop table t1, t2;
+create table t1 (s1 int);
+create view abc as select * from t1 as abc;
+drop table t1;
+drop view abc;

mysql-test/t/view.test

@@ -1083,11 +1083,11 @@ create view v1 as select * from t1;
 create view v2 as select * from v1;
 -- error 1146
 alter view v1 as select * from v2;
--- error 1066
+-- error 1146
 alter view v1 as select * from v1;
 -- error 1146
 create or replace view v1 as select * from v2;
--- error 1066
+-- error 1146
 create or replace view v1 as select * from v1;
 drop view v2,v1;
 drop table t1;
@@ -2059,3 +2059,12 @@ order by users_names;
 
 drop view v1, v2;
 drop table t1, t2;
+
+#
+# Bug #6808 - Views: CREATE VIEW v ... FROM t AS v fails
+#
+
+create table t1 (s1 int); 
+create view abc as select * from t1 as abc;
+drop table t1;
+drop view abc;

sql/sql_parse.cc

@@ -6059,7 +6059,10 @@ TABLE_LIST *st_select_lex::add_table_to_list(THD *thd,
   /* check that used name is unique */
   if (lock_type != TL_IGNORE)
   {
-    for (TABLE_LIST *tables=(TABLE_LIST*) table_list.first ;
+    TABLE_LIST *first_table= (TABLE_LIST*) table_list.first;
+    if (lex->sql_command == SQLCOM_CREATE_VIEW)
+      first_table= first_table ? first_table->next_local : NULL;
+    for (TABLE_LIST *tables= first_table ;
 	 tables ;
 	 tables=tables->next_local)
     {