diff --git a/mysql-test/r/bug20328.result b/mysql-test/r/bug20328.result
deleted file mode 100644
index 62955775ec4..00000000000
--- a/mysql-test/r/bug20328.result
+++ /dev/null
@@ -1,44 +0,0 @@
-?         (\?) Synonym for `help'.
-clear     (\c) Clear command.
-connect   (\r) Reconnect to the server. Optional arguments are db and host.
-delimiter (\d) Set query delimiter. 
-edit      (\e) Edit command with $EDITOR.
-ego       (\G) Send command to mysql server, display result vertically.
-exit      (\q) Exit mysql. Same as quit.
-go        (\g) Send command to mysql server.
-help      (\h) Display this help.
-nopager   (\n) Disable pager, print to stdout.
-notee     (\t) Don't write into outfile.
-pager     (\P) Set PAGER [to_pager]. Print the query results via PAGER.
-print     (\p) Print current command.
-prompt    (\R) Change your mysql prompt.
-quit      (\q) Quit mysql.
-rehash    (\#) Rebuild completion hash.
-source    (\.) Execute an SQL script file. Takes a file name as an argument.
-status    (\s) Get status information from the server.
-system    (\!) Execute a system shell command.
-tee       (\T) Set outfile [to_outfile]. Append everything into given outfile.
-use       (\u) Use another database. Takes database name as argument.
-charset_name(\C) Switch to another charset. Might be needed for processing binlog.
-?         (\?) Synonym for `help'.
-clear     (\c) Clear command.
-connect   (\r) Reconnect to the server. Optional arguments are db and host.
-delimiter (\d) Set query delimiter. 
-edit      (\e) Edit command with $EDITOR.
-ego       (\G) Send command to mysql server, display result vertically.
-exit      (\q) Exit mysql. Same as quit.
-go        (\g) Send command to mysql server.
-help      (\h) Display this help.
-nopager   (\n) Disable pager, print to stdout.
-notee     (\t) Don't write into outfile.
-pager     (\P) Set PAGER [to_pager]. Print the query results via PAGER.
-print     (\p) Print current command.
-prompt    (\R) Change your mysql prompt.
-quit      (\q) Quit mysql.
-rehash    (\#) Rebuild completion hash.
-source    (\.) Execute an SQL script file. Takes a file name as an argument.
-status    (\s) Get status information from the server.
-system    (\!) Execute a system shell command.
-tee       (\T) Set outfile [to_outfile]. Append everything into given outfile.
-use       (\u) Use another database. Takes database name as argument.
-charset_name(\C) Switch to another charset. Might be needed for processing binlog.
diff --git a/mysql-test/r/grant2.result b/mysql-test/r/grant2.result
index a24879e7bd0..2700426257b 100644
--- a/mysql-test/r/grant2.result
+++ b/mysql-test/r/grant2.result
@@ -121,9 +121,9 @@ mysqltest_5@host5, mysqltest_6@host6, mysqltest_7@host7;
 create database mysqltest_1;
 grant select, insert, update on `mysqltest\_1`.* to mysqltest_1@localhost;
 set sql_log_off = 1;
-ERROR HY000: Access denied; you need the SUPER privilege for this operation
+ERROR 42000: Access denied; you need the SUPER privilege for this operation
 set sql_log_bin = 0;
-ERROR HY000: Access denied; you need the SUPER privilege for this operation
+ERROR 42000: Access denied; you need the SUPER privilege for this operation
 delete from mysql.user where user like 'mysqltest\_1';
 delete from mysql.db where user like 'mysqltest\_1';
 drop database mysqltest_1;
diff --git a/mysql-test/r/heap_btree.result b/mysql-test/r/heap_btree.result
index 81b16dc3dcb..c9d3db5e8e8 100644
--- a/mysql-test/r/heap_btree.result
+++ b/mysql-test/r/heap_btree.result
@@ -248,34 +248,34 @@ a
 DROP TABLE t1;
 create table t1(a int not null, key using btree(a)) engine=heap;
 insert into t1 values (2), (2), (2), (1), (1), (3), (3), (3), (3);
-select a from t1 where a > 2;
+select a from t1 where a > 2 order by a;
 a
 3
 3
 3
 3
 delete from t1 where a < 4;
-select a from t1;
+select a from t1 order by a;
 a
 insert into t1 values (2), (2), (2), (1), (1), (3), (3), (3), (3);
-select a from t1 where a > 4;
+select a from t1 where a > 4 order by a;
 a
 delete from t1 where a > 4;
-select a from t1;
+select a from t1 order by a;
 a
-3
-3
 1
-3
-3
 1
 2
 2
 2
-select a from t1 where a > 3;
+3
+3
+3
+3
+select a from t1 where a > 3 order by a;
 a
 delete from t1 where a >= 2;
-select a from t1;
+select a from t1 order by a;
 a
 1
 1
diff --git a/mysql-test/r/mysql_client.result b/mysql-test/r/mysql_client.result
index c7663c55070..01a8c731bc9 100644
--- a/mysql-test/r/mysql_client.result
+++ b/mysql-test/r/mysql_client.result
@@ -5,7 +5,7 @@ ERROR at line 1: USE must be followed by a database name
 ?         (\?) Synonym for `help'.
 clear     (\c) Clear command.
 connect   (\r) Reconnect to the server. Optional arguments are db and host.
-delimiter (\d) Set query delimiter. 
+delimiter (\d) Set statement delimiter. NOTE: Takes the rest of the line as new delimiter.
 edit      (\e) Edit command with $EDITOR.
 ego       (\G) Send command to mysql server, display result vertically.
 exit      (\q) Exit mysql. Same as quit.
@@ -23,11 +23,13 @@ status    (\s) Get status information from the server.
 system    (\!) Execute a system shell command.
 tee       (\T) Set outfile [to_outfile]. Append everything into given outfile.
 use       (\u) Use another database. Takes database name as argument.
-charset_name(\C) Switch to another charset. Might be needed for processing binlog.
+charset   (\C) Switch to another charset. Might be needed for processing binlog with multi-byte charsets.
+warnings  (\W) Show warnings after every statement.
+nowarning (\w) Don't show warnings after every statement.
 ?         (\?) Synonym for `help'.
 clear     (\c) Clear command.
 connect   (\r) Reconnect to the server. Optional arguments are db and host.
-delimiter (\d) Set query delimiter. 
+delimiter (\d) Set statement delimiter. NOTE: Takes the rest of the line as new delimiter.
 edit      (\e) Edit command with $EDITOR.
 ego       (\G) Send command to mysql server, display result vertically.
 exit      (\q) Exit mysql. Same as quit.
@@ -45,7 +47,9 @@ status    (\s) Get status information from the server.
 system    (\!) Execute a system shell command.
 tee       (\T) Set outfile [to_outfile]. Append everything into given outfile.
 use       (\u) Use another database. Takes database name as argument.
-charset_name(\C) Switch to another charset. Might be needed for processing binlog.
+charset   (\C) Switch to another charset. Might be needed for processing binlog with multi-byte charsets.
+warnings  (\W) Show warnings after every statement.
+nowarning (\w) Don't show warnings after every statement.
 \
 \\
 ';
diff --git a/mysql-test/t/bug20328.test b/mysql-test/t/bug20328.test
deleted file mode 100644
index 6ae4717de9c..00000000000
--- a/mysql-test/t/bug20328.test
+++ /dev/null
@@ -1,9 +0,0 @@
-# This test should work in embedded server after we fix mysqltest
--- source include/not_embedded.inc
-
-#
-# Bug #20328: mysql client interprets commands in comments
-#
---exec echo 'help' | $MYSQL
---exec echo 'help ' | $MYSQL
-
diff --git a/mysql-test/t/heap_btree.test b/mysql-test/t/heap_btree.test
index 71743d0d850..e74e9723ca6 100644
--- a/mysql-test/t/heap_btree.test
+++ b/mysql-test/t/heap_btree.test
@@ -170,16 +170,16 @@ DROP TABLE t1;
 
 create table t1(a int not null, key using btree(a)) engine=heap;
 insert into t1 values (2), (2), (2), (1), (1), (3), (3), (3), (3);
-select a from t1 where a > 2;
+select a from t1 where a > 2 order by a;
 delete from t1 where a < 4;
-select a from t1;
+select a from t1 order by a;
 insert into t1 values (2), (2), (2), (1), (1), (3), (3), (3), (3);
-select a from t1 where a > 4;
+select a from t1 where a > 4 order by a;
 delete from t1 where a > 4;
-select a from t1;
-select a from t1 where a > 3;
+select a from t1 order by a;
+select a from t1 where a > 3 order by a;
 delete from t1 where a >= 2;
-select a from t1;
+select a from t1 order by a;
 drop table t1;
 
 --echo End of 4.1 tests