Bug#48800 CREATE TABLE t...SELECT fails if t is a temporary

          table

If a temporary table A exists, and a (permanent) table 
with the same name is attempted created with 
"CREATE TABLE ... AS SELECT", the create would fail with 
an error.
   1050: Table 'A' already exists

The error occured in MySQL 5.1 releases, but is not
present in MySQL 5.5.   This patch adds a regression
test to ensure that the problem does not reoccur.

1 files changed, 15 insertions, 0 deletions

diff --git a/mysql-test/r/create.result b/mysql-test/r/create.result
index eb1437414e7..49597caa027 100644
--- a/mysql-test/r/create.result
+++ b/mysql-test/r/create.result
@@ -1977,3 +1977,18 @@ CREATE TABLE t1 LIKE t2;
 ERROR 42S01: Table 't1' already exists
 DROP TABLE t2;
 DROP TABLE t1;
+#
+# Bug #48800 CREATE TABLE t...SELECT fails if t is a 
+#            temporary table
+#
+CREATE TEMPORARY TABLE t1 (a INT);
+CREATE TABLE t1 (a INT);
+CREATE TEMPORARY TABLE t2 (a INT);
+CREATE VIEW t2 AS SELECT 1;
+CREATE TABLE t3 (a INT);
+CREATE TEMPORARY TABLE t3 SELECT 1;
+CREATE TEMPORARY TABLE t4 (a INT);
+CREATE TABLE t4 AS SELECT 1;
+DROP TEMPORARY TABLE t1, t2, t3, t4;
+DROP TABLE t1, t3, t4;
+DROP VIEW t2;