5.0-bugteam->5.1-bugteam merge

mysql-test/r/innodb_mysql.result

@@ -1677,3 +1677,9 @@ select @@session.sql_log_bin, @@session.binlog_format, @@session.tx_isolation;
 CREATE TABLE t1 ( a INT ) ENGINE=InnoDB;
 INSERT INTO t1 VALUES(1);
 DROP TABLE t1;
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (a char(50)) ENGINE=InnoDB;
+CREATE INDEX i1 on t1 (a(3));
+SELECT * FROM t1 WHERE a = 'abcde';
+a
+DROP TABLE t1;

mysql-test/t/innodb_mysql.test

@@ -43,3 +43,13 @@ CREATE TABLE t1 ( a INT ) ENGINE=InnoDB;
 INSERT INTO t1 VALUES(1);
 DROP TABLE t1;
 
+#
+# Bug#37284 Crash in Field_string::type()
+#
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+--enable_warnings
+CREATE TABLE t1 (a char(50)) ENGINE=InnoDB;
+CREATE INDEX i1 on t1 (a(3));
+SELECT * FROM t1 WHERE a = 'abcde';
+DROP TABLE t1;

sql/sql_base.cc

@@ -3095,7 +3095,10 @@ bool reopen_table(TABLE *table)
   for (key=0 ; key < table->s->keys ; key++)
   {
     for (part=0 ; part < table->key_info[key].usable_key_parts ; part++)
+    {
       table->key_info[key].key_part[part].field->table= table;
+      table->key_info[key].key_part[part].field->orig_table= table;
+    }
   }
   if (table->triggers)
     table->triggers->set_table(table);