diff --git a/mysql-test/r/trigger.result b/mysql-test/r/trigger.result
index 320f4e5c3d9..c9a91758336 100644
--- a/mysql-test/r/trigger.result
+++ b/mysql-test/r/trigger.result
@@ -787,46 +787,52 @@ drop trigger t1_bi;
 ERROR 3D000: No database selected
 create table t1 (id int);
 create trigger t1_bi before insert on t1 for each row set @a:=new.id;
+create trigger t1_ai after insert on test.t1 for each row set @b:=new.id;
 insert into t1 values (101);
-select @a;
-@a
-101
+select @a, @b;
+@a	@b
+101	101
 select trigger_schema, trigger_name, event_object_schema,
 event_object_table, action_statement from information_schema.triggers
 where event_object_schema = 'test';
 trigger_schema	trigger_name	event_object_schema	event_object_table	action_statement
 test	t1_bi	test	t1	set @a:=new.id
+test	t1_ai	test	t1	set @b:=new.id
 rename table t1 to t2;
 insert into t2 values (102);
-select @a;
-@a
-102
+select @a, @b;
+@a	@b
+102	102
 select trigger_schema, trigger_name, event_object_schema,
 event_object_table, action_statement from information_schema.triggers
 where event_object_schema = 'test';
 trigger_schema	trigger_name	event_object_schema	event_object_table	action_statement
 test	t1_bi	test	t2	set @a:=new.id
+test	t1_ai	test	t2	set @b:=new.id
 alter table t2 rename to t3;
 insert into t3 values (103);
-select @a;
-@a
-103
+select @a, @b;
+@a	@b
+103	103
 select trigger_schema, trigger_name, event_object_schema,
 event_object_table, action_statement from information_schema.triggers
 where event_object_schema = 'test';
 trigger_schema	trigger_name	event_object_schema	event_object_table	action_statement
 test	t1_bi	test	t3	set @a:=new.id
+test	t1_ai	test	t3	set @b:=new.id
 alter table t3 rename to t4, add column val int default 0;
 insert into t4 values (104, 1);
-select @a;
-@a
-104
+select @a, @b;
+@a	@b
+104	104
 select trigger_schema, trigger_name, event_object_schema,
 event_object_table, action_statement from information_schema.triggers
 where event_object_schema = 'test';
 trigger_schema	trigger_name	event_object_schema	event_object_table	action_statement
 test	t1_bi	test	t4	set @a:=new.id
+test	t1_ai	test	t4	set @b:=new.id
 drop trigger t1_bi;
+drop trigger t1_ai;
 drop table t4;
 create database mysqltest;
 use mysqltest;
diff --git a/mysql-test/t/trigger.test b/mysql-test/t/trigger.test
index 0ac57394c2f..1d68b519f1d 100644
--- a/mysql-test/t/trigger.test
+++ b/mysql-test/t/trigger.test
@@ -960,38 +960,42 @@ drop trigger t1_bi;
 connection default;
 
 #
-# Test for bug #13525 "Rename table does not keep info of triggers"
+# Tests for bug #13525 "Rename table does not keep info of triggers"
+# and bug #17866 "Problem with renaming table with triggers with fully
+# qualified subject table".
 #
 create table t1 (id int);
 create trigger t1_bi before insert on t1 for each row set @a:=new.id;
+create trigger t1_ai after insert on test.t1 for each row set @b:=new.id;
 insert into t1 values (101);
-select @a;
+select @a, @b;
 select trigger_schema, trigger_name, event_object_schema,
        event_object_table, action_statement from information_schema.triggers
        where event_object_schema = 'test';
 rename table t1 to t2;
 # Trigger should work after rename
 insert into t2 values (102);
-select @a;
+select @a, @b;
 select trigger_schema, trigger_name, event_object_schema,
        event_object_table, action_statement from information_schema.triggers
        where event_object_schema = 'test';
 # Let us check that the same works for simple ALTER TABLE ... RENAME
 alter table t2 rename to t3;
 insert into t3 values (103);
-select @a;
+select @a, @b;
 select trigger_schema, trigger_name, event_object_schema,
        event_object_table, action_statement from information_schema.triggers
        where event_object_schema = 'test';
 # And for more complex ALTER TABLE
 alter table t3 rename to t4, add column val int default 0;
 insert into t4 values (104, 1);
-select @a;
+select @a, @b;
 select trigger_schema, trigger_name, event_object_schema,
        event_object_table, action_statement from information_schema.triggers
        where event_object_schema = 'test';
 # .TRN file should be updated with new table name
 drop trigger t1_bi;
+drop trigger t1_ai;
 drop table t4;
 # Rename between different databases if triggers exist should fail
 create database mysqltest;
diff --git a/sql/sql_trigger.cc b/sql/sql_trigger.cc
index 4c3ae5c032d..cef8c4dd1dc 100644
--- a/sql/sql_trigger.cc
+++ b/sql/sql_trigger.cc
@@ -1217,6 +1217,7 @@ Table_triggers_list::change_table_name_in_triggers(THD *thd,
     buff.append(def->str, before_on_len);
     buff.append(STRING_WITH_LEN("ON "));
     append_identifier(thd, &buff, new_table_name->str, new_table_name->length);
+    buff.append(STRING_WITH_LEN(" "));
     on_q_table_name_len= buff.length() - before_on_len;
     buff.append(on_table_name->str + on_table_name->length,
                 def->length - (before_on_len + on_table_name->length));
diff --git a/sql/sql_yacc.yy b/sql/sql_yacc.yy
index 468ade1bbbd..86d50bcd707 100644
--- a/sql/sql_yacc.yy
+++ b/sql/sql_yacc.yy
@@ -9127,7 +9127,7 @@ view_check_option:
 
 trigger_tail:
 	TRIGGER_SYM remember_name sp_name trg_action_time trg_event
-	ON remember_name table_ident remember_end FOR_SYM EACH_SYM ROW_SYM
+	ON remember_name table_ident FOR_SYM remember_name EACH_SYM ROW_SYM
 	{
 	  LEX *lex= Lex;
 	  sp_head *sp;
@@ -9145,7 +9145,7 @@ trigger_tail:
 	
 	  lex->trigger_definition_begin= $2;
           lex->ident.str= $7;
-          lex->ident.length= $9 - $7;
+          lex->ident.length= $10 - $7;
 
 	  sp->m_type= TYPE_ENUM_TRIGGER;
 	  lex->sphead= sp;