merged

innobase/row/row0mysql.c

@@ -3151,6 +3151,7 @@ row_drop_table_for_mysql(
 	foreign = UT_LIST_GET_FIRST(table->referenced_list);
 	
 	while (foreign && foreign->foreign_table == table) {
+	check_next_foreign:
 		foreign = UT_LIST_GET_NEXT(referenced_list, foreign);
 	}
 
@@ -3179,6 +3180,10 @@ row_drop_table_for_mysql(
 		goto funct_exit;
 	}
 
+	if (foreign && trx->check_foreigns) {
+		goto check_next_foreign;
+	}
+
 	if (table->n_mysql_handles_opened > 0) {
 		ibool	added;
 

mysql-test/r/union.result

@@ -1252,6 +1252,20 @@ t2	CREATE TABLE `t2` (
   `a` varchar(12) default NULL
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1 ROW_FORMAT=FIXED
 drop table t1,t2;
+CREATE TABLE t1 (a mediumtext);
+CREATE TABLE t2 (b varchar(20));
+INSERT INTO t1 VALUES ('a'),('b');
+SELECT left(a,100000000) FROM t1 UNION  SELECT b FROM t2;
+left(a,100000000)
+a
+b
+create table t3 SELECT left(a,100000000) FROM t1 UNION  SELECT b FROM t2;
+show create table t3;
+Table	Create Table
+t3	CREATE TABLE `t3` (
+  `left(a,100000000)` longtext
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+drop tables t1,t2,t3;
 create table t1 ( id int not null auto_increment, primary key (id), col1 int);
 insert into t1 (col1) values (2),(3),(4),(5),(6);
 select 99 union all select id from t1 order by 1;

mysql-test/t/union.test

@@ -773,6 +773,16 @@ alter table t2 ROW_FORMAT=fixed;
 show create table t2;
 drop table t1,t2;
 
+#
+# correct conversion long string to TEXT (BUG#10025)
+#
+CREATE TABLE t1 (a mediumtext);
+CREATE TABLE t2 (b varchar(20));
+INSERT INTO t1 VALUES ('a'),('b');
+SELECT left(a,100000000) FROM t1 UNION  SELECT b FROM t2;
+create table t3 SELECT left(a,100000000) FROM t1 UNION  SELECT b FROM t2;
+show create table t3;
+drop tables t1,t2,t3;
 
 #
 # Bug #10032 Bug in parsing UNION with ORDER BY when one node does not use FROM

sql/ha_innodb.cc

@@ -6482,7 +6482,8 @@ ha_innobase::store_lock(
     		if ((lock_type >= TL_WRITE_CONCURRENT_INSERT &&
 	 	    lock_type <= TL_WRITE) && !thd->in_lock_tables
 		    && !thd->tablespace_op
-		    && thd->lex->sql_command != SQLCOM_TRUNCATE) {
+		    && thd->lex->sql_command != SQLCOM_TRUNCATE
+                    && thd->lex->sql_command != SQLCOM_CREATE_TABLE) {
 
       			lock_type = TL_WRITE_ALLOW_WRITE;
       		}