Fix for BUG#4551 "Temporary InnoDB tables not replicated properly with CREATE TABLE .. SELECT"

The problem was that (for any storage engine), the created temporary table was not removed if CREATE SELECT failed (because
of a constraint violation for example). This was not consistent with the manual and with CREATE SELECT (no TEMPORARY).


sql/sql_insert.cc:
  Fix for BUG#4551 "Temporary InnoDB tables not replicated properly with CREATE TABLE .. SELECT"
  The problem was that (for any storage engine), the created temporary table was not removed if CREATE SELECT failed (because
  of a constraint violation for example). This was not consistent with the manual and with CREATE SELECT (no TEMPORARY).
  And it led to the above bug, because the binlogging of CREATE SELECT is done by select_insert::send_eof() (same function
  as INSERT SELECT) and so, if the table is transactional and there is a failure, the statement is considered as rolled
  back and so nothing is written in the binlog. So temp table MUST be deleted.

mysql-test/r/create_select_tmp.result

+drop table if exists t1, t2;
+CREATE TABLE t1 ( a int );
+INSERT INTO t1 VALUES (1),(2),(1);
+CREATE TABLE t2 ( PRIMARY KEY (a) ) TYPE=INNODB SELECT a FROM t1;
+Duplicate entry '1' for key 1
+select * from t2;
+Table 'test.t2' doesn't exist
+CREATE TEMPORARY TABLE t2 ( PRIMARY KEY (a) ) TYPE=INNODB SELECT a FROM t1;
+Duplicate entry '1' for key 1
+select * from t2;
+Table 'test.t2' doesn't exist
+CREATE TABLE t2 ( PRIMARY KEY (a) ) TYPE=MYISAM SELECT a FROM t1;
+Duplicate entry '1' for key 1
+select * from t2;
+Table 'test.t2' doesn't exist
+CREATE TEMPORARY TABLE t2 ( PRIMARY KEY (a) ) TYPE=MYISAM SELECT a FROM t1;
+Duplicate entry '1' for key 1
+select * from t2;
+Table 'test.t2' doesn't exist

mysql-test/t/create_select_tmp.test

+# Testcase for BUG#4551
+# The bug was that when the table was TEMPORARY, it was not deleted if
+# the CREATE SELECT failed (the code intended too, but it actually
+# didn't). And as the CREATE TEMPORARY TABLE was not written to the
+# binlog if it was a transactional table, it resulted in an
+# inconsistency between binlog and the internal list of temp tables.
+
+-- source include/have_innodb.inc
+drop table if exists t1, t2;
+CREATE TABLE t1 ( a int );
+INSERT INTO t1 VALUES (1),(2),(1);
+--error 1062;
+CREATE TABLE t2 ( PRIMARY KEY (a) ) TYPE=INNODB SELECT a FROM t1;
+--error 1146;
+select * from t2;
+--error 1062;
+CREATE TEMPORARY TABLE t2 ( PRIMARY KEY (a) ) TYPE=INNODB SELECT a FROM t1;
+--error 1146;
+select * from t2;
+--error 1062;
+CREATE TABLE t2 ( PRIMARY KEY (a) ) TYPE=MYISAM SELECT a FROM t1;
+--error 1146;
+select * from t2;
+--error 1062;
+CREATE TEMPORARY TABLE t2 ( PRIMARY KEY (a) ) TYPE=MYISAM SELECT a FROM t1;
+--error 1146;
+select * from t2;

sql/sql_insert.cc

@@ -1545,9 +1545,13 @@ void select_create::abort()
     table->file->extra(HA_EXTRA_NO_IGNORE_DUP_KEY);
     enum db_type table_type=table->db_type;
     if (!table->tmp_table)
+    {
       hash_delete(&open_cache,(byte*) table);
       if (!create_info->table_existed)
-      quick_rm_table(table_type,db,name);
+        quick_rm_table(table_type, db, name);
+    }
+    else if (!create_info->table_existed)
+      close_temporary_table(thd, db, name);
     table=0;
   }
   VOID(pthread_mutex_unlock(&LOCK_open));