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Fix for BUG#6808.

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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:
  Test for BUG#6808
mysql-test/t/view.test:
  Test for BUG#6808
sql/sql_parse.cc:
  When testing for table name uniquness, skip the first table the current
  statement is CREATE VIEW. Notice that the first table is skipped differently
  for CREATE TABLE ... SELECT ... statements, so we don't have to handle that
  case here (see production 'create_select', the call 'to save_and_clear').
This commit is contained in:
unknown 2005-09-12 17:01:17 +03:00
parent 0fd4d20c53
commit d2789003b3
3 changed files with 21 additions and 5 deletions
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8
mysql-test/r/view.result
View File

@ -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;

13
mysql-test/t/view.test
View File

@ -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;

5
sql/sql_parse.cc
View File

@ -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)
{