Merge branch '10.0' into 10.1

mysql-test/suite/handler/handler.inc

@@ -377,7 +377,9 @@ send optimize table t1;
 # client 1
 --echo proceed with the normal connection
 connection default;
+--disable_ps_protocol
 handler t1 read next;
+--enable_ps_protocol
 handler t1 close;
 # client 2
 --echo read the result from the other connection

mysql-test/suite/handler/interface.result

@@ -269,7 +269,7 @@ handler t1 open;
 lock table t1 write;
 alter table t1 engine=csv;
 handler t1 read a next;
-ERROR HY000: Storage engine CSV of the table `test`.`t1` doesn't have this option
+Got one of the listed errors
 handler t1 close;
 unlock tables;
 drop table t1;

mysql-test/suite/handler/interface.test

@@ -326,7 +326,7 @@ let $wait_condition=
         info = "alter table t1 engine=csv";
 --source include/wait_condition.inc
 connection default;
---error ER_ILLEGAL_HA
+--error ER_ILLEGAL_HA,ER_KEY_DOES_NOT_EXITS
 handler t1 read a next;
 handler t1 close;
 connection con1;

mysql-test/suite/handler/ps.result

@@ -0,0 +1,9 @@
+create table t1 (i int);
+handler test.t1 open handler_a;
+flush status;
+handler handler_a read first;
+i
+show status like 'Com_stmt_prepare%';
+Variable_name	Value
+Com_stmt_prepare	OK
+drop table t1;

mysql-test/suite/handler/ps.test

@@ -0,0 +1,11 @@
+#
+# MDEV-15729 Server crashes in Field::make_field upon HANDLER READ executed with PS protocol
+#
+create table t1 (i int);
+handler test.t1 open handler_a;
+flush status;
+handler handler_a read first;
+# handler...read must be prepared in --ps-protocol mode
+--replace_result $PS_PROTOCOL OK
+show status like 'Com_stmt_prepare%';
+drop table t1;