bump the VERSION to 10.1.6 and related changes

fix two #if MYSQL_VERSION_ID > 100105

VERSION

 MYSQL_VERSION_MAJOR=10
 MYSQL_VERSION_MINOR=1
-MYSQL_VERSION_PATCH=5
+MYSQL_VERSION_PATCH=6
 MYSQL_VERSION_EXTRA=

mysql-test/r/myisam-system.result

@@ -2,18 +2,18 @@ drop table if exists t1,t2;
 create table t1 (a int) engine=myisam;
 drop table if exists t1;
 Warnings:
-Warning	2	Can't find file: './test/t1.MYI' (errno: 2 "No such file or directory")
+Warning	1017	Can't find file: './test/t1.MYI' (errno: 2 "No such file or directory")
 create table t1 (a int) engine=myisam;
 select * from t1;
 ERROR HY000: Can't find file: './test/t1.MYI' (errno: 2 "No such file or directory")
 drop table t1;
 Warnings:
-Warning	2	Can't find file: './test/t1.MYI' (errno: 2 "No such file or directory")
+Warning	1017	Can't find file: './test/t1.MYI' (errno: 2 "No such file or directory")
 create table t1 (a int) engine=myisam;
 select * from t1;
 ERROR HY000: File './test/t1.MYD' not found (Errcode: 2 "No such file or directory")
 drop table t1;
 Warnings:
-Warning	2	Can't find file: './test/t1.MYI' (errno: 2 "No such file or directory")
+Warning	1017	Can't find file: './test/t1.MYI' (errno: 2 "No such file or directory")
 drop table t1;
 ERROR 42S02: Unknown table 'test.t1'

mysql-test/suite/federated/federated_bug_35333.result

@@ -29,7 +29,7 @@ Warnings:
 Warning	1017	Can't find file: './test/t1.MYI' (errno: 2 "No such file or directory")
 DROP TABLE t1;
 Warnings:
-Warning	2	Can't find file: './test/t1.MYI' (errno: 2 "No such file or directory")
+Warning	1017	Can't find file: './test/t1.MYI' (errno: 2 "No such file or directory")
 #
 # Cleanup
 #

mysql-test/suite/innodb/r/innodb.result

@@ -2484,7 +2484,7 @@ INSERT INTO t2 VALUES(1);
 DELETE FROM t1 WHERE id = 1;
 ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `c1` FOREIGN KEY (`v`) REFERENCES `t1` (`id`))
 DROP TABLE t1;
-ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails
+ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `c1` FOREIGN KEY (`v`) REFERENCES `t1` (`id`))
 SET FOREIGN_KEY_CHECKS=0;
 DROP TABLE t1;
 SET FOREIGN_KEY_CHECKS=1;

mysql-test/suite/innodb/r/innodb_mysql.result

@@ -634,7 +634,7 @@ ERROR 42S02: Table 'test.bug29807' doesn't exist in engine
 drop table t1;
 drop table bug29807;
 Warnings:
-Warning	155	Table 'test.bug29807' doesn't exist in engine
+Warning	1932	Table 'test.bug29807' doesn't exist in engine
 CREATE TABLE t1 (a INT) ENGINE=InnoDB;
 CREATE TABLE t2 (a INT) ENGINE=InnoDB;
 switch to connection c1

mysql-test/suite/innodb/t/innodb.test

@@ -1551,7 +1551,7 @@ INSERT INTO t2 VALUES(1);
 --error 1451
 DELETE FROM t1 WHERE id = 1;
 
---error 1217
+--error 1451
 DROP TABLE t1;
 
 SET FOREIGN_KEY_CHECKS=0;

mysql-test/suite/perfschema/r/dml_setup_objects.result

@@ -17,7 +17,7 @@ OBJECT_TYPE	OBJECT_SCHEMA	OBJECT_NAME	ENABLED	TIMED
 insert into performance_schema.setup_objects
 set object_type='ILLEGAL', object_schema='FOO', object_name='BAR',
 enabled='YES', timed='YES';
-ERROR 23000: Cannot add or update a child row: a foreign key constraint fails ()
+ERROR 23000: Cannot add or update a child row: a foreign key constraint fails
 insert into performance_schema.setup_objects
 set object_type='TABLE', object_schema='FOO', object_name='BAR',
 enabled='YES', timed='YES';

mysql-test/suite/perfschema/r/setup_objects.result

@@ -27,25 +27,25 @@ insert into performance_schema.setup_objects
 values ('TABLE', 'db4', '%', 'YES', 'NO');
 insert into performance_schema.setup_objects
 values ('SOMETHING', 'bad1', 'bad1', 'YES', 'NO');
-ERROR 23000: Cannot add or update a child row: a foreign key constraint fails ()
+ERROR 23000: Cannot add or update a child row: a foreign key constraint fails
 show warnings;
 Level	Code	Message
 Warning	1265	Data truncated for column 'OBJECT_TYPE' at row 1
-Error	1452	Cannot add or update a child row: a foreign key constraint fails ()
+Error	1452	Cannot add or update a child row: a foreign key constraint fails
 insert into performance_schema.setup_objects
 values ('TABLE', 'bad2', 'bad2', 'MAYBE', 'NO');
-ERROR 23000: Cannot add or update a child row: a foreign key constraint fails ()
+ERROR 23000: Cannot add or update a child row: a foreign key constraint fails
 show warnings;
 Level	Code	Message
 Warning	1265	Data truncated for column 'ENABLED' at row 1
-Error	1452	Cannot add or update a child row: a foreign key constraint fails ()
+Error	1452	Cannot add or update a child row: a foreign key constraint fails
 insert into performance_schema.setup_objects
 values ('TABLE', 'bad3', 'bad3', 'YES', 'MAYBE NOT');
-ERROR 23000: Cannot add or update a child row: a foreign key constraint fails ()
+ERROR 23000: Cannot add or update a child row: a foreign key constraint fails
 show warnings;
 Level	Code	Message
 Warning	1265	Data truncated for column 'TIMED' at row 1
-Error	1452	Cannot add or update a child row: a foreign key constraint fails ()
+Error	1452	Cannot add or update a child row: a foreign key constraint fails
 select * from performance_schema.setup_objects
 order by OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME;
 OBJECT_TYPE	OBJECT_SCHEMA	OBJECT_NAME	ENABLED	TIMED
@@ -64,10 +64,10 @@ set OBJECT_TYPE='SOMETHING' where OBJECT_SCHEMA='db1' and OBJECT_NAME='t1';
 ERROR HY000: Invalid performance_schema usage.
 update performance_schema.setup_objects
 set ENABLED='MAYBE' where OBJECT_SCHEMA='db1' and OBJECT_NAME='t1';
-ERROR 23000: Cannot add or update a child row: a foreign key constraint fails ()
+ERROR 23000: Cannot add or update a child row: a foreign key constraint fails
 update performance_schema.setup_objects
 set TIMED='MAYBE NOT' where OBJECT_SCHEMA='db1' and OBJECT_NAME='t1';
-ERROR 23000: Cannot add or update a child row: a foreign key constraint fails ()
+ERROR 23000: Cannot add or update a child row: a foreign key constraint fails
 select * from performance_schema.setup_objects
 order by OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME;
 OBJECT_TYPE	OBJECT_SCHEMA	OBJECT_NAME	ENABLED	TIMED

mysql-test/suite/rpl/r/rpl_EE_err.result

@@ -4,5 +4,5 @@ create table t1 (a int) engine=myisam;
 flush tables;
 drop table if exists t1;
 Warnings:
-Warning	2	Can't find file: './test/t1.MYI' (errno: 2 "No such file or directory")
+Warning	1017	Can't find file: './test/t1.MYI' (errno: 2 "No such file or directory")
 include/rpl_end.inc

sql/handler.cc

@@ -2296,41 +2296,6 @@ const char *get_canonical_filename(handler *file, const char *path,
 }
 
 
-/**
-  An interceptor to hijack the text of the error message without
-  setting an error in the thread. We need the text to present it
-  in the form of a warning to the user.
-*/
-
-struct Ha_delete_table_error_handler: public Internal_error_handler
-{
-public:
-  virtual bool handle_condition(THD *thd,
-                                uint sql_errno,
-                                const char* sqlstate,
-                                Sql_condition::enum_warning_level level,
-                                const char* msg,
-                                Sql_condition ** cond_hdl);
-  char buff[MYSQL_ERRMSG_SIZE];
-};
-
-
-bool
-Ha_delete_table_error_handler::
-handle_condition(THD *,
-                 uint,
-                 const char*,
-                 Sql_condition::enum_warning_level,
-                 const char* msg,
-                 Sql_condition ** cond_hdl)
-{
-  *cond_hdl= NULL;
-  /* Grab the error message */
-  strmake_buf(buff, msg);
-  return TRUE;
-}
-
-
 /** delete a table in the engine
 
   @note
@@ -2367,14 +2332,6 @@ int ha_delete_table(THD *thd, handlerton *table_type, const char *path,
 
     if (!intercept || generate_warning)
     {
-      /*
-        Because file->print_error() use my_error() to generate the error message
-        we use an internal error handler to intercept it and store the text
-        in a temporary buffer. Later the message will be presented to user
-        as a warning.
-      */
-      Ha_delete_table_error_handler ha_delete_table_error_handler;
-
       /* Fill up strucutures that print_error may need */
       dummy_share.path.str= (char*) path;
       dummy_share.path.length= strlen(path);
@@ -2385,28 +2342,8 @@ int ha_delete_table(THD *thd, handlerton *table_type, const char *path,
       dummy_share.table_name.length= strlen(alias);
       dummy_table.alias.set(alias, dummy_share.table_name.length,
                             table_alias_charset);
-
       file->change_table_ptr(&dummy_table, &dummy_share);
-
-#if MYSQL_VERSION_ID > 100105
-      // XXX as an ugly 10.0-only hack we intercept HA_ERR_ROW_IS_REFERENCED,
-      // to report it under the old historical error number.
-#error remove HA_ERR_ROW_IS_REFERENCED, use ME_JUST_WARNING instead of a handler
-#endif
-      if (intercept || error == HA_ERR_ROW_IS_REFERENCED)
-        thd->push_internal_handler(&ha_delete_table_error_handler);
-
-      file->print_error(error, 0);
-
-      if (intercept || error == HA_ERR_ROW_IS_REFERENCED)
-      {
-        thd->pop_internal_handler();
-        if (error == HA_ERR_ROW_IS_REFERENCED)
-          my_message(ER_ROW_IS_REFERENCED, ER(ER_ROW_IS_REFERENCED), MYF(0));
-        else
-          push_warning(thd, Sql_condition::WARN_LEVEL_WARN, error,
-                       ha_delete_table_error_handler.buff);
-      }
+      file->print_error(error, MYF(intercept ? ME_JUST_WARNING : 0));
     }
     if (intercept)
       error= 0;
@@ -3528,14 +3465,18 @@ void handler::print_error(int error, myf errflag)
   {
     String str;
     get_error_message(error, &str);
-    my_error(ER_ROW_IS_REFERENCED_2, errflag, str.c_ptr_safe());
+    my_printf_error(ER_ROW_IS_REFERENCED_2,
+                    ER(str.length() ? ER_ROW_IS_REFERENCED_2 : ER_ROW_IS_REFERENCED),
+                    errflag, str.c_ptr_safe());
     DBUG_VOID_RETURN;
   }
   case HA_ERR_NO_REFERENCED_ROW:
   {
     String str;
     get_error_message(error, &str);
-    my_error(ER_NO_REFERENCED_ROW_2, errflag, str.c_ptr_safe());
+    my_printf_error(ER_NO_REFERENCED_ROW_2,
+                    ER(str.length() ? ER_NO_REFERENCED_ROW_2 : ER_NO_REFERENCED_ROW),
+                    errflag, str.c_ptr_safe());
     DBUG_VOID_RETURN;
   }
   case HA_ERR_TABLE_DEF_CHANGED:

sql/sql_show.cc

@@ -7913,13 +7913,21 @@ bool get_schema_tables_result(JOIN *join,
     TABLE_LIST *table_list= tab->table->pos_in_table_list;
     if (table_list->schema_table && thd->fill_information_schema_tables())
     {
-#if MYSQL_VERSION_ID > 100105
-#error I_S tables only need to be re-populated if make_cond_for_info_schema() will preserve outer fields
-      bool is_subselect= (&lex->unit != lex->current_select->master_unit() &&
-                          lex->current_select->master_unit()->item);
-#else
-#define is_subselect false
-#endif
+      /*
+        Note, currently I_S tables are filled once per query.
+        This needs to be changed if if make_cond_for_info_schema()
+        will preserve outer fields (and thus I_S content will depend on
+        the outer subquery) - in this new case I_S tables will need to
+        be re-populated here.
+
+        And in that case, get_all_tables() might be called O(N^2) times
+        (in self-join of TABLES, for example) and it will allocate
+        table names on THD::mem_root O(N^2) times. To fix it, get_all_tables
+        needs to be fixed to use a local memroot, that is reset or destroyed
+        between get_all_tables invocations. Or fixed not to allocate
+        table names on THD::memroot if these names don't satisfy lookup_field
+      */
+      const bool is_subselect= false;
 
       /* A value of 0 indicates a dummy implementation */
       if (table_list->schema_table->fill_table == 0)
@@ -7959,7 +7967,6 @@ bool get_schema_tables_result(JOIN *join,
       }
       else
         table_list->table->file->stats.records= 0;
-
   
       Item *cond= tab->select_cond;
       if (tab->cache_select && tab->cache_select->cond)