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authorunknown <gshchepa/uchum@gshchepa.localdomain>2007-04-12 23:21:37 +0500
committerunknown <gshchepa/uchum@gshchepa.localdomain>2007-04-12 23:21:37 +0500
commit0b54001b21e56ceb04d80eeeadbb62a04b04d34f (patch)
treec4380735508587e667ca632bab9ebc072c84a367 /sql/sql_delete.cc
parent2eaf8ac837c2c4002fe359c12ddc2df8f2a79899 (diff)
downloadmariadb-git-0b54001b21e56ceb04d80eeeadbb62a04b04d34f.tar.gz
Bug#5507: TRUNCATE does not work with views.
Support of views wasn't implemented for the TRUNCATE statement. Now TRUNCATE on views has the same semantics as DELETE FROM view: mysql_truncate() checks whether the table is a view and falls back to delete if so. In order to initialize properly the LEX::updatable for a view st_lex::can_use_merged() now allows usage of merged views for the TRUNCATE statement. mysql-test/r/truncate.result: Added a test case for the Bug#5507: TRUNCATE does not work with views. mysql-test/t/truncate.test: Added a test case for the Bug#5507: TRUNCATE does not work with views. sql/sql_lex.cc: Bug#5507: TRUNCATE does not work with views. can_use_merged() was denying of usage of merged views for a TRUNCATE statement. This results in improper initialization of view LEX::updatable. Fixed. sql/sql_delete.cc: Bug#5507: TRUNCATE does not work with views. 1.mysql_truncate() was lacking of check whether the table is view. Added. 2.mysql_truncate() calls mysql_delete(), but mysql_delete() always reports errors as "DELETE" errors. Fixed. mysql-test/t/view.test: Updated test case for Bug#14540: OPTIMIZE, ANALYZE, REPAIR applied to not a view. mysql-test/r/view.result: Updated test case for Bug#14540: OPTIMIZE, ANALYZE, REPAIR applied to not a view.
Diffstat (limited to 'sql/sql_delete.cc')
-rw-r--r--sql/sql_delete.cc9
1 files changed, 6 insertions, 3 deletions
diff --git a/sql/sql_delete.cc b/sql/sql_delete.cc
index 19f3135c594..6956e5cfe91 100644
--- a/sql/sql_delete.cc
+++ b/sql/sql_delete.cc
@@ -369,6 +369,8 @@ bool mysql_prepare_delete(THD *thd, TABLE_LIST *table_list, Item **conds)
{
Item *fake_conds= 0;
SELECT_LEX *select_lex= &thd->lex->select_lex;
+ const char *operation = thd->lex->sql_command == SQLCOM_TRUNCATE ?
+ "TRUNCATE" : "DELETE";
DBUG_ENTER("mysql_prepare_delete");
List<Item> all_fields;
@@ -383,14 +385,14 @@ bool mysql_prepare_delete(THD *thd, TABLE_LIST *table_list, Item **conds)
DBUG_RETURN(TRUE);
if (!table_list->updatable || check_key_in_view(thd, table_list))
{
- my_error(ER_NON_UPDATABLE_TABLE, MYF(0), table_list->alias, "DELETE");
+ my_error(ER_NON_UPDATABLE_TABLE, MYF(0), table_list->alias, operation);
DBUG_RETURN(TRUE);
}
{
TABLE_LIST *duplicate;
if ((duplicate= unique_table(thd, table_list, table_list->next_global, 0)))
{
- update_non_unique_table_error(table_list, "DELETE", duplicate);
+ update_non_unique_table_error(table_list, operation, duplicate);
DBUG_RETURN(TRUE);
}
}
@@ -895,7 +897,8 @@ bool mysql_truncate(THD *thd, TABLE_LIST *table_list, bool dont_send_ok)
if (!dont_send_ok)
{
db_type table_type;
- mysql_frm_type(thd, path, &table_type);
+ if (mysql_frm_type(thd, path, &table_type) == FRMTYPE_VIEW)
+ goto trunc_by_del;
if (table_type == DB_TYPE_UNKNOWN)
{
my_error(ER_NO_SUCH_TABLE, MYF(0),