bzr commit into mysql-5.1 branch (Martin.Skold:2660) Bug#37921

[Martin Skold]

#At file:///home/marty/MySQL/mysql-5.1-telco-6.2/

 2660 Martin Skold	2008-09-07
      Bug #37921  sql node not aware that table does not exist on data nodes: Adding check
for stale frm files in mysql_create_table
modified:
  sql/sql_table.cc

=== modified file 'sql/sql_table.cc'
--- a/sql/sql_table.cc	2008-09-02 09:51:07 +0000
+++ b/sql/sql_table.cc	2008-09-07 19:57:38 +0000
@@ -3606,6 +3606,9 @@ bool mysql_create_table(THD *thd, const 
                         bool internal_tmp_table,
                         uint select_field_count)
 {
+  const char	*alias;
+  char path[FN_REFLEN];
+  List<LEX_STRING> files;
   TABLE *name_lock= 0;
   bool result;
   DBUG_ENTER("mysql_create_table");
@@ -3625,6 +3628,21 @@ bool mysql_create_table(THD *thd, const 
     DBUG_RETURN(TRUE);
   }
   creating_table++;
+
+/*
+  Check if any frm file already exists and
+  double check with storage engines to remove
+  them if they are stale.
+ */   
+  alias= table_case_name(create_info, table_name);
+  build_table_filename(path, sizeof(path), db, alias, reg_ext,
+                       internal_tmp_table ? FN_IS_TMP : 0);
+  if (!access(path,F_OK))
+  {
+    build_table_filename(path, sizeof(path), db, "", "", 0);
+    VOID(find_files(thd, &files, db, path, NullS, 0));
+  }
+
   pthread_mutex_unlock(&LOCK_lock_db);
 
   if (!(create_info->options & HA_LEX_CREATE_TMP_TABLE))