Merge 10.3 into 10.4

2025-07-29 05:21:33 +03:00 · 2018-08-16 10:08:30 +03:00
parent b151cc2b0b 8716bb3b72
commit 734db318ac
335 changed files with 7445 additions and 2293 deletions
--- a/.gitignore
+++ b/.gitignore
@ -94,7 +94,6 @@ packaging/rpm-oel/mysql.spec
 packaging/rpm-uln/mysql.10.0.11.spec
 packaging/solaris/postinstall-solaris
 pcre/config.h
-pcre/pcre*test.sh
 pcre/pcre.h
 pcre/pcre_chartables.c
 pcre/pcregrep
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -14,22 +14,10 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA

-CMAKE_MINIMUM_REQUIRED(VERSION 2.8.3)
+CMAKE_MINIMUM_REQUIRED(VERSION 2.8.7)

-# explicitly set the policy to OLD
-# (cannot use NEW, not everyone is on cmake-2.8.12 yet)
 IF(POLICY CMP0022)
-  CMAKE_POLICY(SET CMP0022 OLD)
-ENDIF()
-
-# We use the LOCATION target property (CMP0026)
-# and get_target_property() for non-existent targets (CMP0045)
-# and INSTALL_NAME_DIR (CMP0042)
-IF(CMAKE_VERSION VERSION_EQUAL "3.0.0" OR
-   CMAKE_VERSION VERSION_GREATER "3.0.0")
- CMAKE_POLICY(SET CMP0026 OLD)
- CMAKE_POLICY(SET CMP0045 OLD)
- CMAKE_POLICY(SET CMP0042 OLD)
+  CMAKE_POLICY(SET CMP0022 NEW)
 ENDIF()
 IF(POLICY CMP0054)
  CMAKE_POLICY(SET CMP0054 NEW)
@ -181,6 +169,12 @@ IF(UNIX)
 ENDIF()
 OPTION (WITH_UNIT_TESTS "Compile MySQL with unit tests" ON)

+IF (WITHOUT_SERVER)
+  SET (SKIP_COMPONENTS "Server|IniFiles|SuportFiles|Readme")
+ELSE()
+  SET (SKIP_COMPONENTS "N-O-N-E")
+ENDIF()
+
 OPTION(NOT_FOR_DISTRIBUTION "Allow linking with GPLv2-incompatible system libraries. Only set it you never plan to distribute the resulting binaries" OFF)

 INCLUDE(check_compiler_flag)
@ -445,7 +439,7 @@ CONFIGURE_FILE(${CMAKE_SOURCE_DIR}/include/mysql_version.h.in
 CONFIGURE_FILE(${CMAKE_SOURCE_DIR}/sql/sql_builtin.cc.in
    ${CMAKE_BINARY_DIR}/sql/sql_builtin.cc)

-IF(GIT_EXECUTABLE)
+IF(GIT_EXECUTABLE AND EXISTS ${PROJECT_SOURCE_DIR}/.git)
  EXECUTE_PROCESS(
    COMMAND ${GIT_EXECUTABLE} rev-parse HEAD
      WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
--- a/client/mysqlbinlog.cc
+++ b/client/mysqlbinlog.cc
@ -82,7 +82,7 @@ ulong bytes_sent = 0L, bytes_received = 0L;
 ulong mysqld_net_retry_count = 10L;
 ulong open_files_limit;
 ulong opt_binlog_rows_event_max_size;
-uint test_flags = 0; 
+ulonglong test_flags = 0;
 static uint opt_protocol= 0;
 static FILE *result_file;
 static char *result_file_name= 0;
--- a/cmake/FindZSTD.cmake
+++ b/cmake/FindZSTD.cmake
@ -1,18 +0,0 @@
-find_path(
-    ZSTD_INCLUDE_DIR
-    NAMES "zstd.h"
-)
-
-find_library(
-    ZSTD_LIBRARY
-    NAMES zstd
-)
-
-set(ZSTD_LIBRARIES ${ZSTD_LIBRARY})
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(
-    ZSTD DEFAULT_MSG ZSTD_INCLUDE_DIR ZSTD_LIBRARIES)
-
-mark_as_advanced(ZSTD_INCLUDE_DIR ZSTD_LIBRARIES ZSTD_FOUND)
-
--- a/cmake/Findzstd.cmake
+++ b/cmake/Findzstd.cmake
@ -0,0 +1,25 @@
+# - Find zstd
+# Find the zstd compression library and includes
+#
+# ZSTD_INCLUDE_DIR - where to find zstd.h, etc.
+# ZSTD_LIBRARIES - List of libraries when using zstd.
+# ZSTD_FOUND - True if zstd found.
+
+if (DEFINED ZSTD_LIBRARIES)
+  return()
+endif()
+
+find_path(ZSTD_INCLUDE_DIR
+  NAMES zstd.h
+  HINTS ${ZSTD_ROOT_DIR}/include)
+
+find_library(ZSTD_LIBRARIES
+  NAMES zstd
+  HINTS ${ZSTD_ROOT_DIR}/lib)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(zstd DEFAULT_MSG ZSTD_LIBRARIES ZSTD_INCLUDE_DIR)
+
+mark_as_advanced(
+  ZSTD_LIBRARIES
+  ZSTD_INCLUDE_DIR)
--- a/cmake/create_initial_db.cmake.in
+++ b/cmake/create_initial_db.cmake.in
@ -14,11 +14,6 @@
 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA 

 # This script creates initial database for packaging on Windows
-SET(CMAKE_SOURCE_DIR "@CMAKE_SOURCE_DIR@")
-SET(CMAKE_CURRENT_BINARY_DIR "@CMAKE_CURRENT_BINARY_DIR@")
-SET(MYSQLD_EXECUTABLE "@MYSQLD_EXECUTABLE@")
-SET(CMAKE_CFG_INTDIR "@CMAKE_CFG_INTDIR@")
-SET(WIN32 "@WIN32@")
 # Force Visual Studio to output to stdout
 IF(ENV{VS_UNICODE_OUTPUT})
 SET ($ENV{VS_UNICODE_OUTPUT})
@ -32,30 +27,27 @@ ENDIF()
 # Create bootstrapper SQL script
 FILE(WRITE bootstrap.sql "use mysql;\n" )
 FOREACH(FILENAME mysql_system_tables.sql mysql_system_tables_data.sql mysql_performance_tables.sql)
-   FILE(STRINGS ${CMAKE_SOURCE_DIR}/scripts/${FILENAME} CONTENTS)
+   FILE(STRINGS ${TOP_SRCDIR}/scripts/${FILENAME} CONTENTS)
   FOREACH(STR ${CONTENTS})
    IF(NOT STR MATCHES "@current_hostname")
      FILE(APPEND bootstrap.sql "${STR}\n")
    ENDIF()
  ENDFOREACH()
 ENDFOREACH()
-FILE(READ ${CMAKE_SOURCE_DIR}/scripts/fill_help_tables.sql CONTENTS)
+FILE(READ ${TOP_SRCDIR}/scripts/fill_help_tables.sql CONTENTS)
 FILE(APPEND bootstrap.sql "${CONTENTS}")

 FILE(REMOVE_RECURSE mysql performance_schema)
 FILE(REMOVE ibdata1 ib_logfile0 ib_logfile1)

 MAKE_DIRECTORY(mysql)
-IF(WIN32)
-  SET(CONSOLE --console)
-ENDIF()

 SET(BOOTSTRAP_COMMAND 
  ${MYSQLD_EXECUTABLE} 
  --no-defaults 
-  ${CONSOLE}
+  --console
  --bootstrap 
-  --lc-messages-dir=${CMAKE_CURRENT_BINARY_DIR}/share
+  --lc-messages-dir=${BINDIR}/share
  --basedir=.
  --datadir=.
  --default-storage-engine=MyISAM
@ -65,10 +57,10 @@ SET(BOOTSTRAP_COMMAND

 GET_FILENAME_COMPONENT(CWD . ABSOLUTE)
 EXECUTE_PROCESS(
-  COMMAND "@CMAKE_COMMAND@" -E echo Executing ${BOOTSTRAP_COMMAND}
+  COMMAND "${CMAKE_COMMAND}" -E echo Executing ${BOOTSTRAP_COMMAND}
 )
 EXECUTE_PROCESS (
-  COMMAND "@CMAKE_COMMAND@" -E
+  COMMAND "${CMAKE_COMMAND}" -E
  echo input file bootstrap.sql, current directory ${CWD}
 )
 EXECUTE_PROCESS (  
--- a/cmake/dtrace.cmake
+++ b/cmake/dtrace.cmake
@ -46,6 +46,10 @@ MACRO(CHECK_DTRACE)
     AND NOT CMAKE_SYSTEM_NAME MATCHES "SunOS")
   SET(ENABLE_DTRACE ON CACHE BOOL "Enable dtrace")
 ENDIF()
+ # On GNU/Hurd, dtrace is not supported
+ IF(DTRACE AND CMAKE_SYSTEM_NAME MATCHES "GNU")
+   SET(ENABLE_DTRACE OFF CACHE BOOL "Disable dtrace")
+ ENDIF()
 SET(HAVE_DTRACE ${ENABLE_DTRACE})
 IF(CMAKE_SYSTEM_NAME MATCHES "SunOS")
   IF(CMAKE_SIZEOF_VOID_P EQUAL 4)
--- a/cmake/for_clients.cmake
+++ b/cmake/for_clients.cmake
@ -11,9 +11,6 @@ SET(LIBS "")
 IF(POLICY CMP0011)
  CMAKE_POLICY(SET CMP0011 NEW)
 ENDIF()
-IF(POLICY CMP0007)
-  CMAKE_POLICY(SET CMP0007 OLD)
-ENDIF()

 # Extract dependencies using CMake's internal ${target}_LIB_DEPENDS variable
 # returned string in ${var} is can be passed to linker's command line
--- a/cmake/install_macros.cmake
+++ b/cmake/install_macros.cmake
@ -115,7 +115,12 @@ FUNCTION(INSTALL_SCRIPT)
    SET(COMP)
  ENDIF()

+  IF (COMP MATCHES ${SKIP_COMPONENTS})
+    RETURN()
+  ENDIF()
+
  INSTALL(PROGRAMS ${script} DESTINATION ${ARG_DESTINATION} ${COMP})
+
  INSTALL_MANPAGE(${script})
 ENDFUNCTION()

@ -132,6 +137,10 @@ FUNCTION(INSTALL_DOCUMENTATION)
    SET(destination ${INSTALL_DOCDIR})
  ENDIF()

+  IF (ARG_COMPONENT MATCHES ${SKIP_COMPONENTS})
+    RETURN()
+  ENDIF()
+
  STRING(TOUPPER ${ARG_COMPONENT} COMPUP)
  IF(CPACK_COMPONENT_${COMPUP}_GROUP)
    SET(group ${CPACK_COMPONENT_${COMPUP}_GROUP})
@ -150,21 +159,17 @@ ENDFUNCTION()


 # Install symbolic link to CMake target. 
-# the link is created in the same directory as target
+# the link is created in the current build directory
 # and extension will be the same as for target file.
 MACRO(INSTALL_SYMLINK linkname target destination component)
 IF(UNIX)
-  GET_TARGET_PROPERTY(location ${target} LOCATION)
-  GET_FILENAME_COMPONENT(path ${location} PATH)
-  GET_FILENAME_COMPONENT(name ${location} NAME)
-  SET(output ${path}/${linkname})
+  SET(output ${CMAKE_CURRENT_BINARY_DIR}/${linkname})
  ADD_CUSTOM_COMMAND(
    OUTPUT ${output}
-    COMMAND ${CMAKE_COMMAND} ARGS -E remove -f ${output}
+    COMMAND ${CMAKE_COMMAND} ARGS -E remove -f ${linkname}
    COMMAND ${CMAKE_COMMAND} ARGS -E create_symlink 
-      ${name} 
+      $<TARGET_FILE_NAME:${target}>
      ${linkname}
-    WORKING_DIRECTORY ${path}
    DEPENDS ${target}
    )
  
@ -250,8 +255,7 @@ FUNCTION(MYSQL_INSTALL_TARGETS)
    ENDIF()
    # Install man pages on Unix
    IF(UNIX)
-      GET_TARGET_PROPERTY(target_location ${target} LOCATION)
-      INSTALL_MANPAGE(${target_location})
+      INSTALL_MANPAGE($<TARGET_FILE:${target}>)
    ENDIF()
  ENDFOREACH()

@ -268,6 +272,7 @@ SET(DEBUGBUILDDIR "${BINARY_PARENTDIR}/debug" CACHE INTERNAL "Directory of debug


 FUNCTION(INSTALL_DEBUG_TARGET target)
+  RETURN() # XXX unused?
  CMAKE_PARSE_ARGUMENTS(ARG
  ""
  "DESTINATION;RENAME;PDB_DESTINATION;COMPONENT"
--- a/cmake/libutils.cmake
+++ b/cmake/libutils.cmake
@ -139,17 +139,17 @@ MACRO(MERGE_STATIC_LIBS TARGET OUTPUT_NAME LIBS_TO_MERGE)

  SET(OSLIBS)
  FOREACH(LIB ${LIBS_TO_MERGE})
-    GET_TARGET_PROPERTY(LIB_LOCATION ${LIB} LOCATION)
-    GET_TARGET_PROPERTY(LIB_TYPE ${LIB} TYPE)
-    IF(NOT LIB_LOCATION)
+    IF(NOT TARGET ${LIB})
       # 3rd party library like libz.so. Make sure that everything
       # that links to our library links to this one as well.
       LIST(APPEND OSLIBS ${LIB})
    ELSE()
+      GET_TARGET_PROPERTY(LIB_TYPE ${LIB} TYPE)
      # This is a target in current project
      # (can be a static or shared lib)
      IF(LIB_TYPE STREQUAL "STATIC_LIBRARY")
-        SET(STATIC_LIBS ${STATIC_LIBS} ${LIB_LOCATION})
+        SET(STATIC_TGTS ${STATIC_TGTS} ${LIB})
+        SET(STATIC_LIBS ${STATIC_LIBS} $<TARGET_FILE:${LIB}>)
        ADD_DEPENDENCIES(${TARGET} ${LIB})
        # Extract dependent OS libraries
        GET_DEPENDEND_OS_LIBS(${LIB} LIB_OSLIBS)
@ -171,7 +171,7 @@ MACRO(MERGE_STATIC_LIBS TARGET OUTPUT_NAME LIBS_TO_MERGE)
  ADD_CUSTOM_COMMAND( 
    OUTPUT  ${SOURCE_FILE}
    COMMAND ${CMAKE_COMMAND}  -E touch ${SOURCE_FILE}
-    DEPENDS ${STATIC_LIBS})
+    DEPENDS ${STATIC_TGTS})

  IF(MSVC)
    # To merge libs, just pass them to lib.exe command line.
@ -182,29 +182,27 @@ MACRO(MERGE_STATIC_LIBS TARGET OUTPUT_NAME LIBS_TO_MERGE)
    SET_TARGET_PROPERTIES(${TARGET} PROPERTIES STATIC_LIBRARY_FLAGS 
      "${LINKER_EXTRA_FLAGS}")
  ELSE()
-    GET_TARGET_PROPERTY(TARGET_LOCATION ${TARGET} LOCATION)  
    IF(APPLE)
      # Use OSX's libtool to merge archives (ihandles universal 
      # binaries properly)
      ADD_CUSTOM_COMMAND(TARGET ${TARGET} POST_BUILD
-        COMMAND rm ${TARGET_LOCATION}
-        COMMAND libtool -static -o ${TARGET_LOCATION} 
+        COMMAND rm $<TARGET_FILE:${TARGET}>
+        COMMAND libtool -static -o $<TARGET_FILE:${TARGET}>
        ${STATIC_LIBS}
      )  
    ELSE()
      # Generic Unix, Cygwin or MinGW. In post-build step, call
      # script, that extracts objects from archives with "ar x" 
      # and repacks them with "ar r"
-      SET(TARGET ${TARGET})
-      CONFIGURE_FILE(
-        ${MYSQL_CMAKE_SCRIPT_DIR}/merge_archives_unix.cmake.in
-        ${CMAKE_CURRENT_BINARY_DIR}/merge_archives_${TARGET}.cmake 
-        @ONLY
-      )
      ADD_CUSTOM_COMMAND(TARGET ${TARGET} POST_BUILD
-        COMMAND rm ${TARGET_LOCATION}
-        COMMAND ${CMAKE_COMMAND} -P 
-        ${CMAKE_CURRENT_BINARY_DIR}/merge_archives_${TARGET}.cmake
+        COMMAND ${CMAKE_COMMAND}
+          -DTARGET_LOCATION="$<TARGET_FILE:${TARGET}>"
+          -DTARGET="${TARGET}"
+          -DSTATIC_LIBS="${STATIC_LIBS}"
+          -DCMAKE_CURRENT_BINARY_DIR="${CMAKE_CURRENT_BINARY_DIR}"
+          -DCMAKE_AR="${CMAKE_AR}"
+          -DCMAKE_RANLIB="${CMAKE_RANLIB}"
+          -P "${MYSQL_CMAKE_SCRIPT_DIR}/merge_archives_unix.cmake"
      )
    ENDIF()
  ENDIF()
@ -269,7 +267,7 @@ MACRO(MERGE_LIBRARIES)
    IF (ARG_SOVERSION)
      SET_TARGET_PROPERTIES(${TARGET} PROPERTIES SOVERSION  ${ARG_VERSION})
    ENDIF()
-    TARGET_LINK_LIBRARIES(${TARGET} ${LIBS})
+    TARGET_LINK_LIBRARIES(${TARGET} LINK_PRIVATE ${LIBS})
    IF(ARG_OUTPUT_NAME)
      SET_TARGET_PROPERTIES(${TARGET} PROPERTIES OUTPUT_NAME "${ARG_OUTPUT_NAME}")
    ENDIF()
@ -282,7 +280,6 @@ MACRO(MERGE_LIBRARIES)
    ENDIF()
    MYSQL_INSTALL_TARGETS(${TARGET} DESTINATION "${INSTALL_LIBDIR}" ${COMP})
  ENDIF()
-  SET_TARGET_PROPERTIES(${TARGET} PROPERTIES LINK_INTERFACE_LIBRARIES "")
  IF(ARG_SHARED AND LINK_FLAG_NO_UNDEFINED)
    # Do not allow undefined symbols in shared libraries
    GET_TARGET_PROPERTY(TARGET_LINK_FLAGS ${TARGET} LINK_FLAGS)
@ -295,18 +292,11 @@ MACRO(MERGE_LIBRARIES)
 ENDMACRO()

 FUNCTION(GET_DEPENDEND_OS_LIBS target result)
-  SET(deps ${${target}_LIB_DEPENDS})
-  IF(deps)
-   FOREACH(lib ${deps})
-    # Filter out keywords for used for debug vs optimized builds
-    IF(NOT lib MATCHES "general" AND NOT lib MATCHES "debug" AND NOT lib MATCHES "optimized")
-      GET_TARGET_PROPERTY(lib_location ${lib} LOCATION)
-      IF(NOT lib_location)
-        SET(ret ${ret} ${lib})
-      ENDIF()
+  FOREACH(lib ${${target}_LIB_DEPENDS})
+    IF(NOT TARGET ${lib})
+      SET(ret ${ret} ${lib})
    ENDIF()
-   ENDFOREACH()
-  ENDIF()
+  ENDFOREACH()
  SET(${result} ${ret} PARENT_SCOPE)
 ENDFUNCTION()

--- a/cmake/merge_archives_unix.cmake.in
+++ b/cmake/merge_archives_unix.cmake.in
@ -14,19 +14,12 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA 

-# This script merges many static libraries into
-# one big library on Unix.
-SET(TARGET_LOCATION "@TARGET_LOCATION@")
-SET(TARGET "@TARGET@")
-SET(STATIC_LIBS "@STATIC_LIBS@")
-SET(CMAKE_CURRENT_BINARY_DIR "@CMAKE_CURRENT_BINARY_DIR@")
-SET(CMAKE_AR "@CMAKE_AR@")
-SET(CMAKE_RANLIB "@CMAKE_RANLIB@")
-
+FILE(REMOVE "${TARGET_LOCATION}")

 SET(TEMP_DIR ${CMAKE_CURRENT_BINARY_DIR}/merge_archives_${TARGET})
 MAKE_DIRECTORY(${TEMP_DIR})
 # Extract each archive to its own subdirectory(avoid object filename clashes)
+SEPARATE_ARGUMENTS(STATIC_LIBS UNIX_COMMAND "${STATIC_LIBS}")
 FOREACH(LIB ${STATIC_LIBS})
  GET_FILENAME_COMPONENT(NAME_NO_EXT ${LIB} NAME_WE)
  SET(TEMP_SUBDIR ${TEMP_DIR}/${NAME_NO_EXT})
--- a/cmake/mysql_add_executable.cmake
+++ b/cmake/mysql_add_executable.cmake
@ -75,6 +75,9 @@ FUNCTION (MYSQL_ADD_EXECUTABLE)
    ELSE()
      SET(COMP COMPONENT Client)
    ENDIF()
+    IF (COMP MATCHES ${SKIP_COMPONENTS})
+      RETURN()
+    ENDIF()
    MYSQL_INSTALL_TARGETS(${target} DESTINATION ${ARG_DESTINATION} ${COMP})
  ENDIF()
 ENDFUNCTION()
--- a/cmake/package_name.cmake
+++ b/cmake/package_name.cmake
@ -77,6 +77,9 @@ IF(NOT VERSION)
          SET(DEFAULT_MACHINE "i386")
        ENDIF()
      ENDIF()
+    ELSEIF(CMAKE_SYSTEM_NAME MATCHES "GNU")
+      SET(DEFAULT_PLATFORM "GNU")
+      SET(DEFAULT_MACHINE "i386")
    ELSEIF(CMAKE_SYSTEM_NAME MATCHES "Darwin")
      IF(CMAKE_OSX_DEPLOYMENT_TARGET)
        SET(DEFAULT_PLATFORM "osx${CMAKE_OSX_DEPLOYMENT_TARGET}")
@ -132,7 +135,7 @@ IF(NOT VERSION)

  SET(package_name "mariadb${PRODUCT_TAG}-${VERSION}-${SYSTEM_NAME_AND_PROCESSOR}")

-  MESSAGE(STATUS "Packaging as: ${package_name}")
+  MESSAGE_ONCE(package_name "Packaging as: ${package_name}")

  # Sometimes package suffix is added (something like "-icc-glibc23")
  IF(PACKAGE_SUFFIX)
--- a/cmake/systemd.cmake
+++ b/cmake/systemd.cmake
@ -20,10 +20,12 @@ MACRO(CHECK_SYSTEMD)
    SET(WITH_SYSTEMD "auto" CACHE STRING "Enable systemd scripts and notification support")
    IF(WITH_SYSTEMD STREQUAL "yes" OR WITH_SYSTEMD STREQUAL "auto")
      IF(PKG_CONFIG_FOUND)
-        IF(WITH_SYSTEMD STREQUAL "yes")
-          pkg_search_module(LIBSYSTEMD REQUIRED libsystemd libsystemd-daemon)
-        ELSE()
-          pkg_search_module(LIBSYSTEMD libsystemd libsystemd-daemon)
+        IF (NOT DEFINED LIBSYSTEMD_FOUND)
+          IF(WITH_SYSTEMD STREQUAL "yes")
+            pkg_search_module(LIBSYSTEMD REQUIRED libsystemd libsystemd-daemon)
+          ELSE()
+            pkg_search_module(LIBSYSTEMD libsystemd libsystemd-daemon)
+          ENDIF()
        ENDIF()
        IF(HAVE_DLOPEN)
          SET(LIBSYSTEMD ${LIBSYSTEMD_LIBRARIES})
--- a/debian/additions/innotop/changelog.innotop
+++ b/debian/additions/innotop/changelog.innotop
@ -77,7 +77,7 @@ Changelog for innotop:
   * remove cxn from $meta->{group_by} if there's only one connection displayed
   * fix for issue 19 - cxn column won't become visible when viewing two 
     connections after having viewed one connection
-   * supress errors resulting from the addition of a 'BACKGROUND THREAD' 
+   * suppress errors resulting from the addition of a 'BACKGROUND THREAD' 
     section in the output of 'show innodb status' 
   * possible fix for issue 22 - Useless use of a constant in void context
   * small change to set_to_tbl() around hiding the cxn column if there 
--- a/debian/additions/innotop/innotop
+++ b/debian/additions/innotop/innotop
@ -17,7 +17,7 @@

 # You should have received a copy of the GNU General Public License along with
 # this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
-# Street, Fifth Floor, Boston, MA  02110-1301  USA
+# Street, Fifth Floor, Boston, MA 02111-1301 USA

 use strict;
 use warnings FATAL => 'all';
@ -1438,8 +1438,8 @@ systems, you can issue `man perlgpl' or `man perlartistic' to read these
 licenses.

 You should have received a copy of the GNU General Public License along with
-this program; if not, write to the Free Software Foundation, Inc., 59 Temple
-Place, Suite 330, Boston, MA  02111-1307  USA.
+this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
+Street, Fifth Floor, Boston, MA 02111-1301 USA.
 LICENSE

 # Configuration information and global setup {{{1
@ -4657,7 +4657,7 @@ my %stmt_maker_for = (
      my $sth;
      eval { # This can fail if the table doesn't exist, INFORMATION_SCHEMA doesn't exist, etc.
         my $cols = $dbh->selectall_arrayref(q{SHOW /*innotop*/ COLUMNS FROM INFORMATION_SCHEMA.PROCESSLIST LIKE 'TIME_MS'});
-         if ( @$cols ) { # The TIME_MS colum exists
+         if ( @$cols ) { # The TIME_MS column exists
            $sth = $dbh->prepare(q{SELECT /*innotop*/ ID, USER, HOST, DB, COMMAND, CASE WHEN TIME_MS/1000 > 365*86400 THEN TIME ELSE TIME_MS/1000 END AS TIME, STATE, INFO FROM INFORMATION_SCHEMA.PROCESSLIST});
         }
      };
@ -11653,7 +11653,7 @@ show you something like this:
 pages_modified     Dirty Pages  Pages modified (dirty  IB_bp_pages_m
 buf_pool_hit_rate  Hit Rate     Buffer pool hit rate   IB_bp_buf_poo
 total_mem_alloc    Memory       Total memory allocate  IB_bp_total_m
- add_pool_alloc     Add'l Pool   Additonal pool alloca  IB_bp_add_poo
+ add_pool_alloc     Add'l Pool   Additional pool alloca  IB_bp_add_poo

 The first line shows which table you're editing, and reminds you again to press
 '?' for a list of key mappings.  The rest is a tabular representation of the
@ -12233,8 +12233,8 @@ systems, you can issue `man perlgpl' or `man perlartistic' to read these
 licenses.

 You should have received a copy of the GNU General Public License along with
-this program; if not, write to the Free Software Foundation, Inc., 59 Temple
-Place, Suite 330, Boston, MA  02111-1307  USA.
+this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
+Street, Fifth Floor, Boston, MA 02111-1301 USA.

 Execute innotop and press '!' to see this information at any time.

--- a/debian/additions/innotop/innotop.1
+++ b/debian/additions/innotop/innotop.1
@ -1678,7 +1678,7 @@ show you something like this:
 \& pages_modified     Dirty Pages  Pages modified (dirty  IB_bp_pages_m
 \& buf_pool_hit_rate  Hit Rate     Buffer pool hit rate   IB_bp_buf_poo
 \& total_mem_alloc    Memory       Total memory allocate  IB_bp_total_m
-\& add_pool_alloc     Add\*(Aql Pool   Additonal pool alloca  IB_bp_add_poo
+\& add_pool_alloc     Add\*(Aql Pool   Additional pool alloca  IB_bp_add_poo
 .Ve
 .PP
 The first line shows which table you're editing, and reminds you again to press
@ -2183,8 +2183,8 @@ systems, you can issue `man perlgpl' or `man perlartistic' to read these
 licenses.
 .PP
 You should have received a copy of the \s-1GNU\s0 General Public License along with
-this program; if not, write to the Free Software Foundation, Inc., 59 Temple
-Place, Suite 330, Boston, \s-1MA  02111\-1307  USA.\s0
+this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
+Street, Fifth Floor, Boston, \s-1MA\s0  02111\-1301  \s-1USA\s0.
 .PP
 Execute innotop and press '!' to see this information at any time.
 .SH "AUTHOR"
--- a/extra/mariabackup/backup_copy.cc
+++ b/extra/mariabackup/backup_copy.cc
@ -471,6 +471,21 @@ struct datafile_cur_t {
 	size_t		buf_size;
 	size_t		buf_read;
 	size_t		buf_offset;
+
+	explicit datafile_cur_t(const char* filename = NULL) :
+		file(), thread_n(0), orig_buf(NULL), buf(NULL), buf_size(0),
+		buf_read(0), buf_offset(0)
+	{
+		memset(rel_path, 0, sizeof rel_path);
+		if (filename) {
+			strncpy(abs_path, filename, sizeof abs_path);
+			abs_path[(sizeof abs_path) - 1] = 0;
+		} else {
+			abs_path[0] = '\0';
+		}
+		rel_path[0] = '\0';
+		memset(&statinfo, 0, sizeof statinfo);
+	}
 };

 static
@ -489,9 +504,7 @@ datafile_open(const char *file, datafile_cur_t *cursor, uint thread_n)
 {
 	bool		success;

-	memset(cursor, 0, sizeof(datafile_cur_t));
-
-	strncpy(cursor->abs_path, file, sizeof(cursor->abs_path));
+	new (cursor) datafile_cur_t(file);

 	/* Get the relative path for the destination tablespace name, i.e. the
 	one that can be appended to the backup root directory. Non-system
@ -630,32 +643,36 @@ static
 int
 mkdirp(const char *pathname, int Flags, myf MyFlags)
 {
-	char parent[PATH_MAX], *p;
+	char *parent, *p;

 	/* make a parent directory path */
-	strncpy(parent, pathname, sizeof(parent));
-	parent[sizeof(parent) - 1] = 0;
+	if (!(parent= strdup(pathname)))
+          return(-1);

 	for (p = parent + strlen(parent);
-	    !is_path_separator(*p) && p != parent; p--);
+	    !is_path_separator(*p) && p != parent; p--) ;

 	*p = 0;

 	/* try to make parent directory */
 	if (p != parent && mkdirp(parent, Flags, MyFlags) != 0) {
+		free(parent);
 		return(-1);
 	}

 	/* make this one if parent has been made */
 	if (my_mkdir(pathname, Flags, MyFlags) == 0) {
+		free(parent);
 		return(0);
 	}

 	/* if it already exists that is fine */
 	if (errno == EEXIST) {
+		free(parent);
 		return(0);
 	}

+	free(parent);
 	return(-1);
 }

@ -665,17 +682,24 @@ bool
 equal_paths(const char *first, const char *second)
 {
 #ifdef HAVE_REALPATH
-	char real_first[PATH_MAX];
-	char real_second[PATH_MAX];
+	char *real_first, *real_second;
+	int result;

-	if (realpath(first, real_first) == NULL) {
-		return false;
-	}
-	if (realpath(second, real_second) == NULL) {
+	real_first = realpath(first, 0);
+	if (real_first == NULL) {
 		return false;
 	}

-	return (strcmp(real_first, real_second) == 0);
+	real_second = realpath(second, 0);
+	if (real_second == NULL) {
+		free(real_first);
+		return false;
+	}
+
+	result = strcmp(real_first, real_second);
+	free(real_first);
+	free(real_second);
+	return result == 0;
 #else
 	return strcmp(first, second) == 0;
 #endif
@ -1360,6 +1384,30 @@ out:
 	return(ret);
 }

+void backup_fix_ddl(void);
+
+#define LSN_PREFIX_IN_SHOW_STATUS  "\nLog sequence number "
+static lsn_t get_current_lsn(MYSQL *connection) {
+	MYSQL_RES *res = xb_mysql_query(connection, "SHOW ENGINE INNODB STATUS", true, false);
+	if (!res)
+		return 0;
+	MYSQL_ROW row = mysql_fetch_row(res);
+	DBUG_ASSERT(row);
+	if (row) {
+		const char *p = strstr(row[2],LSN_PREFIX_IN_SHOW_STATUS);
+		DBUG_ASSERT(p);
+		if (p)
+		{
+			p += sizeof(LSN_PREFIX_IN_SHOW_STATUS) - 1;
+			return (lsn_t)strtoll(p, NULL, 10);
+		}
+	}
+	mysql_free_result(res);
+	return 0;
+}
+
+lsn_t server_lsn_after_lock;
+extern void backup_wait_for_lsn(lsn_t lsn);
 /** Start --backup */
 bool backup_start()
 {
@ -1379,6 +1427,7 @@ bool backup_start()
 		if (!lock_tables(mysql_connection)) {
 			return(false);
 		}
+		server_lsn_after_lock = get_current_lsn(mysql_connection);
 	}

 	if (!backup_files(fil_path_to_mysql_datadir, false)) {
@ -1393,6 +1442,10 @@ bool backup_start()
 		rocksdb_create_checkpoint();
 	}

+	msg_ts("Waiting for log copy thread to read lsn %llu\n", (ulonglong)server_lsn_after_lock);
+	backup_wait_for_lsn(server_lsn_after_lock);
+	backup_fix_ddl();
+
 	// There is no need to stop slave thread before coping non-Innodb data when
 	// --no-lock option is used because --no-lock option requires that no DDL or
 	// DML to non-transaction tables can occur.
@ -2202,6 +2255,7 @@ static void rocksdb_lock_checkpoint()
 		msg_ts("Could not obtain rocksdb checkpont lock\n");
 		exit(EXIT_FAILURE);
 	}
+	mysql_free_result(res);
 }

 static void rocksdb_unlock_checkpoint()
--- a/extra/mariabackup/backup_mysql.cc
+++ b/extra/mariabackup/backup_mysql.cc
@ -1795,7 +1795,12 @@ mdl_lock_table(ulint space_id)
    std::ostringstream lock_query;
    lock_query << "SELECT 1 FROM " << full_table_name  << " LIMIT 0";
    msg_ts("Locking MDL for %s\n", full_table_name.c_str());
-    xb_mysql_query(mdl_con, lock_query.str().c_str(), false, true);
+    if (mysql_query(mdl_con, lock_query.str().c_str())) {
+      msg_ts("Warning : locking MDL failed for space id %zu, name %s\n", space_id, full_table_name.c_str());
+    } else {
+      MYSQL_RES *r = mysql_store_result(mdl_con);
+      mysql_free_result(r);
+    }
  }

  pthread_mutex_unlock(&mdl_lock_con_mutex);
--- a/extra/mariabackup/datasink.c
+++ b/extra/mariabackup/datasink.c
@ -109,6 +109,9 @@ Write to a datasink file.
 int
 ds_write(ds_file_t *file, const void *buf, size_t len)
 {
+	if (len == 0) {
+		return 0;
+	}
 	return file->datasink->write(file, (const uchar *)buf, len);
 }

--- a/extra/mariabackup/fil_cur.cc
+++ b/extra/mariabackup/fil_cur.cc
@ -130,14 +130,15 @@ Open a source file cursor and initialize the associated read filter.
 be skipped and XB_FIL_CUR_ERROR on error. */
 xb_fil_cur_result_t
 xb_fil_cur_open(
-/*============*/
+	/*============*/
 	xb_fil_cur_t*	cursor,		/*!< out: source file cursor */
 	xb_read_filt_t*	read_filter,	/*!< in/out: the read filter */
 	fil_node_t*	node,		/*!< in: source tablespace node */
-	uint		thread_n)	/*!< thread number for diagnostics */
+	uint		thread_n,	/*!< thread number for diagnostics */
+	ulonglong max_file_size)
 {
 	bool	success;
-
+	int err;
 	/* Initialize these first so xb_fil_cur_close() handles them correctly
 	in case of error */
 	cursor->orig_buf = NULL;
@ -172,7 +173,7 @@ xb_fil_cur_open(
 			    "tablespace %s\n",
 			    thread_n, cursor->abs_path);

-			return(XB_FIL_CUR_ERROR);
+			return(XB_FIL_CUR_SKIP);
 		}
 		mutex_enter(&fil_system.mutex);

@ -193,14 +194,31 @@ xb_fil_cur_open(

 	cursor->node = node;
 	cursor->file = node->handle;
-
-	if (stat(cursor->abs_path, &cursor->statinfo)) {
-		msg("[%02u] mariabackup: error: cannot stat %s\n",
+#ifdef _WIN32
+    HANDLE hDup;
+    DuplicateHandle(GetCurrentProcess(),cursor->file.m_file,
+		GetCurrentProcess(), &hDup, 0, FALSE, DUPLICATE_SAME_ACCESS);
+	int filenr = _open_osfhandle((intptr_t)hDup, 0);
+	if (filenr < 0) {
+		err = EINVAL;
+	}
+	else {
+		err = _fstat64(filenr, &cursor->statinfo);
+		close(filenr);
+	}
+#else
+	err = fstat(cursor->file.m_file, &cursor->statinfo);
+#endif
+	if (max_file_size < (ulonglong)cursor->statinfo.st_size) {
+		cursor->statinfo.st_size = (ulonglong)max_file_size;
+	}
+	if (err) {
+		msg("[%02u] mariabackup: error: cannot fstat %s\n",
 		    thread_n, cursor->abs_path);

 		xb_fil_cur_close(cursor);

-		return(XB_FIL_CUR_ERROR);
+		return(XB_FIL_CUR_SKIP);
 	}

 	if (srv_file_flush_method == SRV_O_DIRECT
@ -373,7 +391,9 @@ xb_fil_cur_close(
 /*=============*/
 	xb_fil_cur_t *cursor)	/*!< in/out: source file cursor */
 {
-	cursor->read_filter->deinit(&cursor->read_filter_ctxt);
+	if (cursor->read_filter) {
+		cursor->read_filter->deinit(&cursor->read_filter_ctxt);
+	}

 	free(cursor->orig_buf);

--- a/extra/mariabackup/fil_cur.h
+++ b/extra/mariabackup/fil_cur.h
@ -58,7 +58,7 @@ struct xb_fil_cur_t {
 	ulint		space_size;	/*!< space size in pages */

 	/** TODO: remove this default constructor */
-	xb_fil_cur_t() : page_size(0), read_filter_ctxt() {}
+	xb_fil_cur_t() : page_size(0), read_filter(0), read_filter_ctxt() {}

 	/** @return whether this is not a file-per-table tablespace */
 	bool is_system() const
@ -87,7 +87,8 @@ xb_fil_cur_open(
 	xb_fil_cur_t*	cursor,		/*!< out: source file cursor */
 	xb_read_filt_t*	read_filter,	/*!< in/out: the read filter */
 	fil_node_t*	node,		/*!< in: source tablespace node */
-	uint		thread_n);	/*!< thread number for diagnostics */
+	uint		thread_n,	/*!< thread number for diagnostics */
+	ulonglong max_file_size = ULLONG_MAX);

 /************************************************************************
 Reads and verifies the next block of pages from the source
--- a/extra/mariabackup/wsrep.cc
+++ b/extra/mariabackup/wsrep.cc
@ -75,8 +75,7 @@ xb_write_galera_info(bool incremental_prepare)
 		return;
 	}

-	memset(&xid, 0, sizeof(xid));
-	xid.formatID = -1;
+	xid.null();

 	if (!trx_rseg_read_wsrep_checkpoint(xid)) {

--- a/extra/mariabackup/xtrabackup.cc
+++ b/extra/mariabackup/xtrabackup.cc
@ -344,6 +344,25 @@ const char *opt_history = NULL;
 char mariabackup_exe[FN_REFLEN];
 char orig_argv1[FN_REFLEN];

+pthread_mutex_t backup_mutex;
+pthread_cond_t  scanned_lsn_cond;
+
+typedef std::map<space_id_t,std::string> space_id_to_name_t;
+
+struct ddl_tracker_t {
+	/** Tablspaces with their ID and name, as they were copied to backup.*/
+	space_id_to_name_t tables_in_backup;
+	/** Tablespaces for that optimized DDL without redo log was found.*/
+	std::set<space_id_t> optimized_ddl;
+	/** Drop operations found in redo log. */
+	std::set<space_id_t> drops;
+	/* For DDL operation found in redo log,  */
+	space_id_to_name_t id_to_name;
+};
+const space_id_t REMOVED_SPACE_ID = ULINT_MAX;
+static ddl_tracker_t ddl_tracker;
+
+
 /* Whether xtrabackup_binlog_info should be created on recovery */
 static bool recover_binlog_info;

@ -536,49 +555,79 @@ void mdl_lock_all()
 		mdl_lock_table(node->space->id);
 	}
 	datafiles_iter_free(it);
-
-	DBUG_EXECUTE_IF("check_mdl_lock_works",
-		dbug_alter_thread_done =
-		  dbug_start_query_thread("ALTER TABLE test.t ADD COLUMN mdl_lock_column int",
-			 "Waiting for table metadata lock",1, ER_QUERY_INTERRUPTED););
 }

-/** Check if the space id belongs to the table which name should
-be skipped based on the --tables, --tables-file and --table-exclude
-options.
-@param[in]	space_id	space id to check
-@return true if the space id belongs to skip table/database list. */
-static bool backup_includes(space_id_t space_id)
+
+// Convert non-null terminated filename to space name
+std::string filename_to_spacename(const byte *filename, size_t len)
 {
-	datafiles_iter_t *it = datafiles_iter_new();
-	if (!it)
-		return true;
+	// null- terminate filename
+	char *f = (char *)malloc(len + 1);
+	ut_a(f);
+	memcpy(f, filename, len);
+	f[len] = 0;
+	for (size_t i = 0; i < len; i++)
+		if (f[i] == '\\')
+			f[i] = '/';
+	char *p = strrchr(f, '.');
+	ut_a(p);
+	*p = 0;
+	char *table = strrchr(f, '/');
+	ut_a(table);
+	*table = 0;
+	char *db = strrchr(f, '/');
+	ut_a(db);
+	*table = '/';
+	return std::string(db+1);
+}

-	while (fil_node_t *node = datafiles_iter_next(it)){
-		if (space_id == 0
-		    || (node->space->id == space_id
-			&& !check_if_skip_table(node->space->name))) {
+/** Report an operation to create, delete, or rename a file during backup.
+@param[in]	space_id	tablespace identifier
+@param[in]	flags		tablespace flags (NULL if not create)
+@param[in]	name		file name (not NUL-terminated)
+@param[in]	len		length of name, in bytes
+@param[in]	new_name	new file name (NULL if not rename)
+@param[in]	new_len		length of new_name, in bytes (0 if NULL) */
+void backup_file_op(ulint space_id, const byte* flags,
+	const byte* name, ulint len,
+	const byte* new_name, ulint new_len)
+{

-			msg("mariabackup: Unsupported redo log detected "
-			"and it belongs to %s\n",
-			space_id ? node->name: "the InnoDB system tablespace");
+	ut_ad(!flags || !new_name);
+	ut_ad(name);
+	ut_ad(len);
+	ut_ad(!new_name == !new_len);
+	pthread_mutex_lock(&backup_mutex);

-			msg("mariabackup: ALTER TABLE or OPTIMIZE TABLE "
-			"was being executed during the backup.\n");
-
-			if (!opt_lock_ddl_per_table) {
-				msg("mariabackup: Use --lock-ddl-per-table "
-				"parameter to lock all the table before "
-				"backup operation.\n");
-			}
-
-			datafiles_iter_free(it);
-			return false;
-		}
+	if (flags) {
+		ddl_tracker.id_to_name[space_id] = filename_to_spacename(name, len);
+		msg("DDL tracking :  create %zu \"%.*s\": %x\n",
+			space_id, int(len), name, mach_read_from_4(flags));
 	}
+	else if (new_name) {
+		ddl_tracker.id_to_name[space_id] = filename_to_spacename(new_name, new_len);
+		msg("DDL tracking : rename %zu \"%.*s\",\"%.*s\"\n",
+			space_id, int(len), name, int(new_len), new_name);
+	} else {
+		ddl_tracker.drops.insert(space_id);
+		msg("DDL tracking : delete %zu \"%.*s\"\n", space_id, int(len), name);
+	}
+	pthread_mutex_unlock(&backup_mutex);
+}

-	datafiles_iter_free(it);
-	return true;
+
+/** Callback whenever MLOG_INDEX_LOAD happens.
+@param[in]	space_id	space id to check
+@return false */
+void backup_optimized_ddl_op(ulint space_id)
+{
+	// TODO : handle incremental
+	if (xtrabackup_incremental)
+		return;
+
+	pthread_mutex_lock(&backup_mutex);
+	ddl_tracker.optimized_ddl.insert(space_id);
+	pthread_mutex_unlock(&backup_mutex);
 }

 /* ======== Date copying thread context ======== */
@ -1363,7 +1412,7 @@ static int prepare_export()
  // which is* unfortunately* still necessary to get mysqld up
  if (strncmp(orig_argv1,"--defaults-file=",16) == 0)
  {
-    sprintf(cmdline, 
+    snprintf(cmdline, sizeof cmdline,
     IF_WIN("\"","") "\"%s\" --mysqld \"%s\" "
      " --defaults-extra-file=./backup-my.cnf --defaults-group-suffix=%s --datadir=."
      " --innodb --innodb-fast-shutdown=0"
@ -2326,7 +2375,7 @@ xb_get_copy_action(const char *dflt)

 static
 my_bool
-xtrabackup_copy_datafile(fil_node_t* node, uint thread_n)
+xtrabackup_copy_datafile(fil_node_t* node, uint thread_n, const char *dest_name=0, ulonglong max_size=ULLONG_MAX)
 {
 	char			 dst_name[FN_REFLEN];
 	ds_file_t		*dstfile = NULL;
@ -2356,20 +2405,35 @@ xtrabackup_copy_datafile(fil_node_t* node, uint thread_n)
 		return(FALSE);
 	}

+	bool was_dropped;
+	pthread_mutex_lock(&backup_mutex);
+	was_dropped = (ddl_tracker.drops.find(node->space->id) != ddl_tracker.drops.end());
+	pthread_mutex_unlock(&backup_mutex);
+	if (was_dropped) {
+		if (node->is_open()) {
+			mutex_enter(&fil_system.mutex);
+			node->close();
+			mutex_exit(&fil_system.mutex);
+		}
+		goto skip;
+	}
+
 	if (!changed_page_bitmap) {
 		read_filter = &rf_pass_through;
 	}
 	else {
 		read_filter = &rf_bitmap;
 	}
-	res = xb_fil_cur_open(&cursor, read_filter, node, thread_n);
+
+	res = xb_fil_cur_open(&cursor, read_filter, node, thread_n,max_size);
 	if (res == XB_FIL_CUR_SKIP) {
 		goto skip;
 	} else if (res == XB_FIL_CUR_ERROR) {
 		goto error;
 	}

-	strncpy(dst_name, cursor.rel_path, sizeof(dst_name));
+	strncpy(dst_name, (dest_name)?dest_name : cursor.rel_path, sizeof(dst_name));
+

 	/* Setup the page write filter */
 	if (xtrabackup_incremental) {
@ -2421,6 +2485,10 @@ xtrabackup_copy_datafile(fil_node_t* node, uint thread_n)
 		goto error;
 	}

+	pthread_mutex_lock(&backup_mutex);
+	ddl_tracker.tables_in_backup[node->space->id] = node_name;
+	pthread_mutex_unlock(&backup_mutex);
+
 	/* close */
 	msg_ts("[%02u]        ...done\n", thread_n);
 	xb_fil_cur_close(&cursor);
@ -2583,7 +2651,7 @@ static bool xtrabackup_copy_logfile(bool last = false)
 		if (!start_lsn) {
 			msg("mariabackup: Error: xtrabackup_copy_logfile()"
 			    " failed.\n");
-			return(true);
+			exit(EXIT_FAILURE);
 		}
 	} while (start_lsn == end_lsn);

@ -2592,12 +2660,30 @@ static bool xtrabackup_copy_logfile(bool last = false)
 	msg_ts(">> log scanned up to (" LSN_PF ")\n", start_lsn);

 	/* update global variable*/
+	pthread_mutex_lock(&backup_mutex);
 	log_copy_scanned_lsn = start_lsn;
+	pthread_cond_broadcast(&scanned_lsn_cond);
+	pthread_mutex_unlock(&backup_mutex);

 	debug_sync_point("xtrabackup_copy_logfile_pause");
 	return(false);
 }

+/**
+Wait until redo log copying thread processes given lsn
+*/
+void backup_wait_for_lsn(lsn_t lsn) {
+	bool completed = false;
+	pthread_mutex_lock(&backup_mutex);
+	do {
+		pthread_cond_wait(&scanned_lsn_cond, &backup_mutex);
+		completed = log_copy_scanned_lsn >= lsn;
+	} while (!completed);
+	pthread_mutex_unlock(&backup_mutex);
+}
+
+extern lsn_t server_lsn_after_lock;
+
 static os_thread_ret_t DECLARE_THREAD(log_copying_thread)(void*)
 {
 	/*
@ -2654,6 +2740,42 @@ static os_thread_ret_t DECLARE_THREAD(io_watching_thread)(void*)
 	return(0);
 }

+#ifndef DBUG_OFF
+/*
+In debug mode,  execute SQL statement that was passed via environment.
+To use this facility, you need to
+
+1. Add code DBUG_EXECUTE_MARIABACKUP_EVENT("my_event_name", key););
+  to the code. key is usually a table name
+2. Set environment variable my_event_name_$key SQL statement you want to execute
+   when event occurs, in DBUG_EXECUTE_IF from above.
+   In mtr , you can set environment via 'let' statement (do not use $ as the first char
+   for the variable)
+3. start mariabackup with --dbug=+d,debug_mariabackup_events
+*/
+static void dbug_mariabackup_event(const char *event,const char *key)
+{
+	char envvar[FN_REFLEN];
+	if (key) {
+		snprintf(envvar, sizeof(envvar), "%s_%s", event, key);
+		char *slash = strchr(envvar, '/');
+		if (slash)
+			*slash = '_';
+	} else {
+		strncpy(envvar, event, sizeof(envvar));
+	}
+	char *sql = getenv(envvar);
+	if (sql) {
+		msg("dbug_mariabackup_event : executing '%s'\n", sql);
+		xb_mysql_query(mysql_connection, sql, false, true);
+	}
+
+}
+#define DBUG_MARIABACKUP_EVENT(A, B) DBUG_EXECUTE_IF("mariabackup_events", dbug_mariabackup_event(A,B););
+#else
+#define DBUG_MARIABACKUP_EVENT(A,B)
+#endif
+
 /**************************************************************************
 Datafiles copying thread.*/
 static
@ -2676,12 +2798,18 @@ DECLARE_THREAD(data_copy_thread_func)(

 	while ((node = datafiles_iter_next(ctxt->it)) != NULL) {

+		DBUG_MARIABACKUP_EVENT("before_copy", node->space->name);
+
+
 		/* copy the datafile */
 		if(xtrabackup_copy_datafile(node, num)) {
 			msg("[%02u] mariabackup: Error: "
 			    "failed to copy datafile.\n", num);
 			exit(EXIT_FAILURE);
 		}
+
+		DBUG_MARIABACKUP_EVENT("after_copy", node->space->name);
+
 	}

 	pthread_mutex_lock(&ctxt->count_mutex);
@ -2853,6 +2981,7 @@ xb_load_single_table_tablespace(
 	Datafile *file = xb_new_datafile(name, is_remote);

 	if (file->open_read_only(true) != DB_SUCCESS) {
+		msg("Can't open datafile %s\n", name);
 		ut_free(name);
 		exit(EXIT_FAILURE);
 	}
@ -3170,7 +3299,7 @@ xb_load_tablespaces()
 	}

 	debug_sync_point("xtrabackup_load_tablespaces_pause");
-
+	DBUG_MARIABACKUP_EVENT("after_load_tablespaces", 0);
 	return(DB_SUCCESS);
 }

@ -3765,6 +3894,8 @@ xtrabackup_backup_func()
 	uint			 count;
 	pthread_mutex_t		 count_mutex;
 	data_thread_ctxt_t 	*data_threads;
+	pthread_mutex_init(&backup_mutex, NULL);
+	pthread_cond_init(&scanned_lsn_cond, NULL);

 #ifdef USE_POSIX_FADVISE
 	msg("mariabackup: uses posix_fadvise().\n");
@ -3778,7 +3909,7 @@ xtrabackup_backup_func()
 		return(false);
 	}
 	msg("mariabackup: cd to %s\n", mysql_real_data_home);
-
+	encryption_plugin_backup_init(mysql_connection);
 	msg("mariabackup: open files limit requested %u, set to %u\n",
 	    (uint) xb_open_files_limit,
 	    xb_set_max_open_files(xb_open_files_limit));
@ -3791,6 +3922,7 @@ xtrabackup_backup_func()
 	srv_read_only_mode = TRUE;

 	srv_operation = SRV_OPERATION_BACKUP;
+	log_file_op = backup_file_op;
 	metadata_to_lsn = 0;

 	if (xb_close_files)
@ -3804,6 +3936,7 @@ xtrabackup_backup_func()
 fail:
 		metadata_to_lsn = log_copying_running;
 		stop_backup_threads();
+		log_file_op = NULL;
 		if (dst_log_file) {
 			ds_close(dst_log_file);
 			dst_log_file = NULL;
@ -4053,6 +4186,7 @@ fail_before_log_copying_thread_start:
 		goto fail_before_log_copying_thread_start;

 	log_copying_stop = os_event_create(0);
+	log_optimized_ddl_op = backup_optimized_ddl_op;
 	os_thread_create(log_copying_thread, NULL, &log_copying_thread_id);

 	/* FLUSH CHANGED_PAGE_BITMAPS call */
@ -4084,6 +4218,11 @@ fail_before_log_copying_thread_start:

 	if (opt_lock_ddl_per_table) {
 		mdl_lock_all();
+
+		DBUG_EXECUTE_IF("check_mdl_lock_works",
+			dbug_alter_thread_done =
+			dbug_start_query_thread("ALTER TABLE test.t ADD COLUMN mdl_lock_column int",
+				"Waiting for table metadata lock", 1, ER_QUERY_INTERRUPTED););
 	}

 	it = datafiles_iter_new();
@ -4121,10 +4260,6 @@ fail_before_log_copying_thread_start:
 	pthread_mutex_destroy(&count_mutex);
 	free(data_threads);
 	datafiles_iter_free(it);
-
-	if (changed_page_bitmap) {
-		xb_page_bitmap_deinit(changed_page_bitmap);
-	}
 	}

 	bool ok = backup_start();
@ -4148,6 +4283,9 @@ fail_before_log_copying_thread_start:
 		goto fail;
 	}

+	if (changed_page_bitmap) {
+		xb_page_bitmap_deinit(changed_page_bitmap);
+	}
 	xtrabackup_destroy_datasinks();

 	msg("mariabackup: Redo log (from LSN " LSN_PF " to " LSN_PF
@ -4165,9 +4303,182 @@ fail_before_log_copying_thread_start:
 	}

 	innodb_shutdown();
+	log_file_op = NULL;
+	pthread_mutex_destroy(&backup_mutex);
+	pthread_cond_destroy(&scanned_lsn_cond);
 	return(true);
 }

+
+/**
+This function handles DDL changes at the end of backup, under protection of
+FTWRL.  This ensures consistent backup in presence of DDL.
+
+- New tables, that were created during backup, are now copied into backup.
+  Also, tablespaces with optimized (no redo loggin DDL) are re-copied into 
+  backup. This tablespaces will get the extension ".new" in the backup
+
+- Tables that were renamed during backup, are marked as renamed
+  For these, file <old_name>.ren will be created.
+  The content of the file is the new tablespace name.
+
+- Tables that were deleted during backup, are marked as deleted
+  For these , an empty file <name>.del will be created
+
+  It is the responsibility of the prepare phase to deal with .new, .ren, and .del
+  files.
+*/
+void backup_fix_ddl(void)
+{
+	std::set<std::string> new_tables;
+	std::set<std::string> dropped_tables;
+	std::map<std::string, std::string> renamed_tables;
+
+	for (space_id_to_name_t::iterator iter = ddl_tracker.tables_in_backup.begin();
+		iter != ddl_tracker.tables_in_backup.end();
+		iter++) {
+
+		const std::string name = iter->second;
+		ulint id = iter->first;
+
+		if (ddl_tracker.drops.find(id) != ddl_tracker.drops.end()) {
+			dropped_tables.insert(name);
+			continue;
+		}
+
+		bool has_optimized_ddl =
+			ddl_tracker.optimized_ddl.find(id) != ddl_tracker.optimized_ddl.end();
+
+		if (ddl_tracker.id_to_name.find(id) == ddl_tracker.id_to_name.end()) {
+			if (has_optimized_ddl) {
+				new_tables.insert(name);
+			}
+			continue;
+		}
+
+		/* tablespace was affected by DDL. */
+		const std::string new_name = ddl_tracker.id_to_name[id];
+		if (new_name != name) {
+			if (has_optimized_ddl) {
+				/* table was renamed, but we need a full copy
+				of it because of optimized DDL. We emulate a drop/create.*/
+				dropped_tables.insert(name);
+				new_tables.insert(new_name);
+			} else {
+				/* Renamed, and no optimized DDL*/
+				renamed_tables[name] = new_name;
+			}
+		} else if (has_optimized_ddl) {
+			/* Table was recreated, or optimized DDL ran.
+			In both cases we need a full copy in the backup.*/
+			new_tables.insert(name);
+		}
+	}
+
+	/* Find tables that were created during backup (and not removed).*/
+	for(space_id_to_name_t::iterator iter = ddl_tracker.id_to_name.begin();
+		iter != ddl_tracker.id_to_name.end();
+		iter++) {
+
+		ulint id = iter->first;
+		std::string name = iter->second;
+
+		if (ddl_tracker.tables_in_backup.find(id) != ddl_tracker.tables_in_backup.end()) {
+			/* already processed above */
+			continue;
+		}
+
+		if (ddl_tracker.drops.find(id) == ddl_tracker.drops.end()) {
+			dropped_tables.erase(name);
+			new_tables.insert(name);
+		}
+	}
+
+	// Mark tablespaces for rename
+	for (std::map<std::string, std::string>::iterator iter = renamed_tables.begin();
+		iter != renamed_tables.end(); ++iter) {
+		const std::string old_name = iter->first;
+		std::string new_name = iter->second;
+		backup_file_printf((old_name + ".ren").c_str(), "%s", new_name.c_str());
+	}
+
+	// Mark tablespaces for drop
+	for (std::set<std::string>::iterator iter = dropped_tables.begin();
+		iter != dropped_tables.end();
+		iter++) {
+		const std::string name(*iter);
+		backup_file_printf((name + ".del").c_str(), "%s", "");
+	}
+
+	//  Load and copy new tables.
+	//  Close all datanodes first, reload only new tables.
+	std::vector<fil_node_t *> all_nodes;
+	datafiles_iter_t *it = datafiles_iter_new();
+	if (!it)
+		return;
+	while (fil_node_t *node = datafiles_iter_next(it)) {
+		all_nodes.push_back(node);
+	}
+	for (size_t i = 0; i < all_nodes.size(); i++) {
+		fil_node_t *n = all_nodes[i];
+		if (n->space->id == 0)
+			continue;
+		if (n->is_open()) {
+			mutex_enter(&fil_system.mutex);
+			n->close();
+			mutex_exit(&fil_system.mutex);
+		}
+		fil_space_free(n->space->id, false);
+	}
+
+
+	for (std::set<std::string>::iterator iter = new_tables.begin();
+		iter != new_tables.end(); iter++) {
+		const char *space_name = iter->c_str();
+		if (check_if_skip_table(space_name))
+			continue;
+		std::string name(*iter);
+		bool is_remote = access((name + ".ibd").c_str(), R_OK) != 0;
+		const char *extension = is_remote ? ".isl" : ".ibd";
+		name.append(extension);
+		char buf[FN_REFLEN];
+		strncpy(buf, name.c_str(), sizeof(buf));
+		const char *dbname = buf;
+		char *p = strchr(buf, '/');
+		if (p == 0) {
+			msg("Unexpected tablespace %s filename %s\n", space_name, name.c_str());
+			ut_a(0);
+		}
+		ut_a(p);
+		*p = 0;
+		const char *tablename = p + 1;
+		xb_load_single_table_tablespace(dbname, tablename, is_remote);
+	}
+
+	it = datafiles_iter_new();
+	if (!it)
+		return;
+
+	while (fil_node_t *node = datafiles_iter_next(it)) {
+		fil_space_t * space = node->space;
+		if (!fil_is_user_tablespace_id(space->id))
+			continue;
+		std::string dest_name(node->space->name);
+		dest_name.append(".new");
+#if 0
+		bool do_full_copy = ddl_tracker.optimized_ddl.find(n->space->id) != ddl_tracker.optimized_ddl.end();
+		if (do_full_copy) {
+			msg(
+				"Performing a full copy of the tablespace %s, because optimized (without redo logging) DDL operation"
+				"ran during backup. You can use set innodb_log_optimize_ddl=OFF to improve backup performance"
+				"in the future.\n",
+				n->space->name);
+		}
+#endif
+		xtrabackup_copy_datafile(node, 0, dest_name.c_str()/*, do_full_copy ? ULONGLONG_MAX:UNIV_PAGE_SIZE */);
+	}
+}
+
 /* ================= prepare ================= */

 /***********************************************************************
@ -4680,6 +4991,27 @@ error:
 	return FALSE;
 }

+
+std::string change_extension(std::string filename, std::string new_ext) {
+	DBUG_ASSERT(new_ext.size() == 3);
+	std::string new_name(filename);
+	new_name.resize(new_name.size() - new_ext.size());
+	new_name.append(new_ext);
+	return new_name;
+}
+
+
+static void rename_file(const char *from,const char *to) {
+	msg("Renaming %s to %s\n", from, to);
+	if (my_rename(from, to, MY_WME)) {
+		msg("Cannot rename %s to %s errno %d", from, to, errno);
+		exit(EXIT_FAILURE);
+	}
+}
+
+static void rename_file(const std::string& from, const std::string &to) {
+	rename_file(from.c_str(), to.c_str());
+}
 /************************************************************************
 Callback to handle datadir entry. Function of this type will be called
 for each entry which matches the mask by xb_process_datadir.
@ -4691,6 +5023,37 @@ typedef ibool (*handle_datadir_entry_func_t)(
 	const char*	file_name,		/*!<in: file name with suffix */
 	void*		arg);			/*!<in: caller-provided data */

+/** Rename, and replace destination file, if exists */
+static void rename_force(const char *from, const char *to) {
+	if (access(to, R_OK) == 0) {
+		msg("Removing %s\n", to);
+		if (my_delete(to, MYF(MY_WME))) {
+			msg("Can't remove %s, errno %d", to, errno);
+			exit(EXIT_FAILURE);
+		}
+	}
+	rename_file(from,to);
+}
+
+/* During prepare phase, rename ".new" files , that were created in backup_fix_ddl(),
+  to ".ibd".*/
+static ibool prepare_handle_new_files(
+	const char*	data_home_dir,		/*!<in: path to datadir */
+	const char*	db_name,		/*!<in: database name */
+	const char*	file_name,		/*!<in: file name with suffix */
+	void *)
+{
+
+	std::string src_path = std::string(data_home_dir) + '/' + std::string(db_name) + '/' + file_name;
+	std::string dest_path = src_path;
+
+	size_t index = dest_path.find(".new");
+	DBUG_ASSERT(index != std::string::npos);
+	dest_path.replace(index, 4, ".ibd");
+	rename_force(src_path.c_str(),dest_path.c_str());
+	return TRUE;
+}
+
 /************************************************************************
 Callback to handle datadir entry. Deletes entry if it has no matching
 fil_space in fil_system directory.
@ -4896,6 +5259,103 @@ store_binlog_info(const char* filename, const char* name, ulonglong pos)
 	return(true);
 }

+/** Check if file exists*/
+static bool file_exists(std::string name)
+{
+	return access(name.c_str(), R_OK) == 0 ;
+}
+
+/** Read file content into STL string */
+static std::string read_file_as_string(const std::string file) {
+	char content[FN_REFLEN];
+	FILE *f = fopen(file.c_str(), "r");
+	if (!f) {
+		msg("Can not open %s\n", file.c_str());
+	}
+	size_t len = fread(content, 1, FN_REFLEN, f);
+	fclose(f);
+	return std::string(content, len);
+}
+
+/** Delete file- Provide verbose diagnostics and exit, if operation fails. */
+static void delete_file(const std::string& file, bool if_exists = false) {
+	if (if_exists && !file_exists(file))
+		return;
+	if (my_delete(file.c_str(), MYF(MY_WME))) {
+		msg("Can't remove %s, errno %d", file.c_str(), errno);
+		exit(EXIT_FAILURE);
+	}
+}
+
+/**
+Rename tablespace during prepare.
+Backup in its end phase may generate some .ren files, recording
+tablespaces that should be renamed in --prepare.
+*/
+static void rename_table_in_prepare(const std::string &datadir, const std::string& from , const std::string& to,
+	const char *extension=0) {
+	if (!extension) {
+		static const char *extensions_nonincremental[] = { ".ibd", 0 };
+		static const char *extensions_incremental[] = { ".ibd.delta", ".ibd.meta", 0 };
+		const char **extensions = xtrabackup_incremental_dir ?
+			extensions_incremental : extensions_nonincremental;
+		for (size_t i = 0; extensions[i]; i++) {
+			rename_table_in_prepare(datadir, from, to, extensions[i]);
+		}
+		return;
+	}
+	std::string src = std::string(datadir) + "/" + from + extension;
+	std::string dest = std::string(datadir) + "/" + to + extension;
+	std::string ren2, tmp;
+	if (file_exists(dest)) {
+		ren2= std::string(datadir) + "/" + to + ".ren";
+		if (!file_exists(ren2)) {
+			msg("ERROR : File %s was not found, but expected during rename processing\n", ren2.c_str());
+			ut_a(0);
+		}
+		tmp = to + "#";
+		rename_table_in_prepare(datadir, to, tmp);
+	}
+	rename_file(src, dest);
+	if (ren2.size()) {
+		// Make sure the temp. renamed file is processed.
+		std::string to2 = read_file_as_string(ren2);
+		rename_table_in_prepare(datadir, tmp, to2);
+		delete_file(ren2);
+	}
+}
+
+static ibool prepare_handle_ren_files(const char *datadir, const char *db, const char *filename, void *) {
+
+	std::string ren_file = std::string(datadir) + "/" + db + "/" + filename;
+	if (!file_exists(ren_file))
+		return TRUE;
+
+	std::string to = read_file_as_string(ren_file);
+	std::string source_space_name = std::string(db) + "/" + filename;
+	source_space_name.resize(source_space_name.size() - 4); // remove extension
+
+	rename_table_in_prepare(datadir, source_space_name.c_str(), to.c_str());
+	delete_file(ren_file);
+	return TRUE;
+}
+
+/* Remove tablespaces during backup, based on */
+static ibool prepare_handle_del_files(const char *datadir, const char *db, const char *filename, void *) {
+	std::string del_file = std::string(datadir) + "/" + db + "/" + filename;
+	std::string path(del_file);
+	path.resize(path.size() - 4); // remove extension;
+	if (xtrabackup_incremental) {
+		delete_file(path + ".ibd.delta", true);
+		delete_file(path + ".ibd.meta", true);
+	}
+	else {
+		delete_file(path + ".ibd", true);
+	}
+	delete_file(del_file);
+	return TRUE;
+}
+
 /** Implement --prepare
@return	whether the operation succeeded */
 static bool
@ -4913,6 +5373,21 @@ xtrabackup_prepare_func(char** argv)
 	}
 	msg("mariabackup: cd to %s\n", xtrabackup_real_target_dir);

+	fil_path_to_mysql_datadir = ".";
+
+	if (xtrabackup_incremental_dir) {
+		xb_process_datadir(xtrabackup_incremental_dir, ".new.meta", prepare_handle_new_files);
+		xb_process_datadir(xtrabackup_incremental_dir, ".new.delta", prepare_handle_new_files);
+	}
+	else {
+		xb_process_datadir(".", ".new", prepare_handle_new_files);
+	}
+	xb_process_datadir(xtrabackup_incremental_dir? xtrabackup_incremental_dir:".",
+		".ren", prepare_handle_ren_files);
+	xb_process_datadir(xtrabackup_incremental_dir ? xtrabackup_incremental_dir : ".",
+		".del", prepare_handle_del_files);
+
+
 	int argc; for (argc = 0; argv[argc]; argc++) {}
 	encryption_plugin_prepare_init(argc, argv);

@ -5203,7 +5678,6 @@ xb_init()
 			return(false);
 		}

-		encryption_plugin_backup_init(mysql_connection);
 		history_start_time = time(NULL);

 	}
@ -5261,7 +5735,7 @@ handle_options(int argc, char **argv, char ***argv_client, char ***argv_server)
 	srv_operation = SRV_OPERATION_RESTORE;

 	files_charset_info = &my_charset_utf8_general_ci;
-	check_if_backup_includes = backup_includes;
+

 	setup_error_messages();
 	sys_var_init();
--- a/extra/perror.c
+++ b/extra/perror.c
@ -105,11 +105,13 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
    break;
  case 'V':
    print_version();
+    my_end(0);
    exit(0);
    break;
  case 'I':
  case '?':
    usage();
+    my_end(0);
    exit(0);
    break;
  }
@ -122,7 +124,10 @@ static int get_options(int *argc,char ***argv)
  int ho_error;

  if ((ho_error=handle_options(argc, argv, my_long_options, get_one_option)))
+  {
+    my_end(0);
    exit(ho_error);
+  }

  if (!*argc && !print_all_codes)
  {
@ -260,7 +265,10 @@ int main(int argc,char *argv[])
  MY_INIT(argv[0]);

  if (get_options(&argc,&argv))
+  {
+    my_end(0);
    exit(1);
+  }

  my_handler_error_register();

--- a/extra/resolveip.c
+++ b/extra/resolveip.c
@ -79,6 +79,7 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
  case 'I':
  case '?':
    usage();
+    my_end(0);
    exit(0);
  }
  return 0;
@ -91,7 +92,10 @@ static int get_options(int *argc,char ***argv)
  int ho_error;

  if ((ho_error=handle_options(argc, argv, my_long_options, get_one_option)))
+  {
+    my_end(0);
    exit(ho_error);
+  }

  if (*argc == 0)
  {
@ -113,10 +117,14 @@ int main(int argc, char **argv)
  MY_INIT(argv[0]);

  if (get_options(&argc,&argv))
+  {
+    my_end(0);
    exit(1);
+  }

  while (argc--)
  {
+    my_bool do_more;
 #ifndef WIN32
    struct in_addr addr;
 #endif
@ -125,13 +133,13 @@ int main(int argc, char **argv)
    /* Not compatible with IPv6!  Probably should use getnameinfo(). */
 #ifdef WIN32
    taddr = inet_addr(ip);
-    if(taddr != INADDR_NONE)
-    {
+    do_more= (taddr != INADDR_NONE);
 #else
-    if (inet_aton(ip, &addr) != 0)
-    {
+    if ((do_more= (inet_aton(ip, &addr) != 0)))
      taddr= addr.s_addr;
 #endif
+    if (do_more)
+    {
      if (taddr == htonl(INADDR_BROADCAST))
      {	
 	puts("Broadcast");
@ -205,5 +213,6 @@ int main(int argc, char **argv)
      }
    }
  }
+  my_end(0);
  exit(error);
 }
--- a/extra/yassl/CMakeLists.txt
+++ b/extra/yassl/CMakeLists.txt
@ -20,9 +20,6 @@ INCLUDE_DIRECTORIES(
 ${CMAKE_SOURCE_DIR}/extra/yassl/taocrypt/mySTL)

 ADD_DEFINITIONS(${SSL_DEFINES})
-#Remove -fno-implicit-templates
-#(yassl sources cannot  be compiled with  it)
-STRING(REPLACE "-fno-implicit-templates" "" CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
 SET(YASSL_SOURCES  src/buffer.cpp src/cert_wrapper.cpp src/crypto_wrapper.cpp src/handshake.cpp src/lock.cpp 
 				src/log.cpp src/socket_wrapper.cpp src/ssl.cpp src/timer.cpp src/yassl_error.cpp 
 				src/yassl_imp.cpp src/yassl_int.cpp)
--- a/include/m_ctype.h
+++ b/include/m_ctype.h
@ -370,7 +370,7 @@ typedef int (*my_charset_conv_mb_wc)(CHARSET_INFO *, my_wc_t *,
 typedef int (*my_charset_conv_wc_mb)(CHARSET_INFO *, my_wc_t,
                                     uchar *, uchar *);
 typedef size_t (*my_charset_conv_case)(CHARSET_INFO *,
-                                       char *, size_t, char *, size_t);
+                                       const char *, size_t, char *, size_t);

 /*
  A structure to return the statistics of a native string copying,
@ -725,9 +725,11 @@ size_t my_copy_fix_mb(CHARSET_INFO *cs,
 /* Functions for 8bit */
 extern size_t my_caseup_str_8bit(CHARSET_INFO *, char *);
 extern size_t my_casedn_str_8bit(CHARSET_INFO *, char *);
-extern size_t my_caseup_8bit(CHARSET_INFO *, char *src, size_t srclen,
+extern size_t my_caseup_8bit(CHARSET_INFO *,
+                             const char *src, size_t srclen,
                             char *dst, size_t dstlen);
-extern size_t my_casedn_8bit(CHARSET_INFO *, char *src, size_t srclen,
+extern size_t my_casedn_8bit(CHARSET_INFO *,
+                             const char *src, size_t srclen,
                             char *dst, size_t dstlen);

 extern int my_strcasecmp_8bit(CHARSET_INFO * cs, const char *, const char *);
@ -821,17 +823,17 @@ int my_charlen_8bit(CHARSET_INFO *, const uchar *str, const uchar *end);
 /* Functions for multibyte charsets */
 extern size_t my_caseup_str_mb(CHARSET_INFO *, char *);
 extern size_t my_casedn_str_mb(CHARSET_INFO *, char *);
-extern size_t my_caseup_mb(CHARSET_INFO *, char *src, size_t srclen,
-                                         char *dst, size_t dstlen);
-extern size_t my_casedn_mb(CHARSET_INFO *, char *src, size_t srclen,
-                                         char *dst, size_t dstlen);
-extern size_t my_caseup_mb_varlen(CHARSET_INFO *, char *src, size_t srclen,
-                                  char *dst, size_t dstlen);
-extern size_t my_casedn_mb_varlen(CHARSET_INFO *, char *src, size_t srclen,
-                                  char *dst, size_t dstlen);
-extern size_t my_caseup_ujis(CHARSET_INFO *, char *src, size_t srclen,
+extern size_t my_caseup_mb(CHARSET_INFO *,
+                           const char *src, size_t srclen,
+                           char *dst, size_t dstlen);
+extern size_t my_casedn_mb(CHARSET_INFO *,
+                           const char *src, size_t srclen,
+                           char *dst, size_t dstlen);
+extern size_t my_caseup_ujis(CHARSET_INFO *,
+                             const char *src, size_t srclen,
                             char *dst, size_t dstlen);
-extern size_t my_casedn_ujis(CHARSET_INFO *, char *src, size_t srclen,
+extern size_t my_casedn_ujis(CHARSET_INFO *,
+                             const char *src, size_t srclen,
                             char *dst, size_t dstlen);
 extern int my_strcasecmp_mb(CHARSET_INFO * cs,const char *, const char *);

--- a/include/sql_common.h
+++ b/include/sql_common.h
@ -1,7 +1,7 @@
 #ifndef SQL_COMMON_INCLUDED
 #define SQL_COMMON_INCLUDED
-/* Copyright (c) 2003, 2012, Oracle and/or its affiliates.
-   Copyright (c) 2010, 2012, Monty Program Ab
+/* Copyright (c) 2003, 2018, Oracle and/or its affiliates.
+   Copyright (c) 2010, 2018, MariaDB

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
--- a/2
+++ b/2
--- a/libmysqld/CMakeLists.txt
+++ b/libmysqld/CMakeLists.txt
@ -155,8 +155,7 @@ SET(LIBS
 # (with corresponding target ${engine}_embedded)
 SET(EMBEDDED_LIBS)
 FOREACH(LIB ${LIBS})
-  GET_TARGET_PROPERTY(EMBEDDED_LOCATION ${LIB}_embedded LOCATION)
-  IF(EMBEDDED_LOCATION)
+  IF(TARGET ${LIB}_embedded)
    LIST(APPEND EMBEDDED_LIBS ${LIB}_embedded)
  ELSE()
    LIST(APPEND EMBEDDED_LIBS ${LIB})
--- a/mysql-test/include/ctype_mdev13118.inc
+++ b/mysql-test/include/ctype_mdev13118.inc
@ -0,0 +1,15 @@
+--echo #
+--echo # MDEV-13118 Wrong results with LOWER and UPPER and subquery
+--echo #
+
+SET @save_optimizer_switch=@@optimizer_switch;
+SET optimizer_switch=_latin1'derived_merge=on';
+CREATE TABLE t1 AS SELECT REPEAT('a', 10) AS t LIMIT 0;
+SHOW CREATE TABLE t1;
+INSERT INTO t1 VALUES ('abcdefghi'),('ABCDEFGHI');
+--sorted_result
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT LOWER(t) t2 FROM t1) sub;
+--sorted_result
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT UPPER(t) t2 FROM t1) sub;
+DROP TABLE t1;
+SET optimizer_switch=@save_optimizer_switch;
--- a/mysql-test/lib/My/Platform.pm
+++ b/mysql-test/lib/My/Platform.pm
@ -112,6 +112,8 @@ sub check_socket_path_length {
  return 0 if ($^O eq 'aix');
  # See Debian bug #670722 - failing on kFreeBSD even after setting short path
  return 0 if $^O eq 'gnukfreebsd' and length $path < 40;
+  # GNU/Hurd doesn't have hostpath(), but no limitation either
+  return 0 if $^O eq 'gnu';

  require IO::Socket::UNIX;

--- a/mysql-test/main/bootstrap.test
+++ b/mysql-test/main/bootstrap.test
@ -114,4 +114,14 @@ EOF
 --source include/kill_mysqld.inc
 --exec $MYSQLD_BOOTSTRAP_CMD --ignore-db-dirs='some_dir' --ignore-db-dirs='some_dir' < $MYSQLTEST_VARDIR/tmp/bootstrap_9969.sql >> $MYSQLTEST_VARDIR/tmp/bootstrap.log 2>&1
 --remove_file $MYSQLTEST_VARDIR/tmp/bootstrap_9969.sql
+
+#
+# MDEV-13397 MariaDB upgrade fail when using default_time_zone
+#
+--write_file $MYSQLTEST_VARDIR/tmp/bootstrap_9969.sql
+use test;
+EOF
+--exec $MYSQLD_BOOTSTRAP_CMD --default-time-zone=Europe/Moscow < $MYSQLTEST_VARDIR/tmp/bootstrap_9969.sql >> $MYSQLTEST_VARDIR/tmp/bootstrap.log 2>&1
+--remove_file $MYSQLTEST_VARDIR/tmp/bootstrap_9969.sql
+
 --source include/start_mysqld.inc
--- a/mysql-test/main/ctype_binary.result
+++ b/mysql-test/main/ctype_binary.result
@ -3048,6 +3048,29 @@ DROP TABLE t1;
 SELECT _binary 0x7E, _binary X'7E', _binary B'01111110';
 _binary 0x7E	_binary X'7E'	_binary B'01111110'
 ~	~	~
+SET NAMES utf8, character_set_connection=binary;
+#
+# MDEV-13118 Wrong results with LOWER and UPPER and subquery
+#
+SET @save_optimizer_switch=@@optimizer_switch;
+SET optimizer_switch=_latin1'derived_merge=on';
+CREATE TABLE t1 AS SELECT REPEAT('a', 10) AS t LIMIT 0;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `t` varbinary(10) DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+INSERT INTO t1 VALUES ('abcdefghi'),('ABCDEFGHI');
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT LOWER(t) t2 FROM t1) sub;
+c2
+ABCDEFGHI-ABCDEFGHI
+abcdefghi-abcdefghi
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT UPPER(t) t2 FROM t1) sub;
+c2
+ABCDEFGHI-ABCDEFGHI
+abcdefghi-abcdefghi
+DROP TABLE t1;
+SET optimizer_switch=@save_optimizer_switch;
 #
 # End of 10.0 tests
 #
--- a/mysql-test/main/ctype_binary.test
+++ b/mysql-test/main/ctype_binary.test
@ -24,6 +24,9 @@ SET NAMES binary;
 --echo #
 SELECT _binary 0x7E, _binary X'7E', _binary B'01111110';

+SET NAMES utf8, character_set_connection=binary;
+--source include/ctype_mdev13118.inc
+
 --echo #
 --echo # End of 10.0 tests
 --echo #
--- a/mysql-test/main/ctype_eucjpms.result
+++ b/mysql-test/main/ctype_eucjpms.result
@ -33844,6 +33844,29 @@ HEX(a)	CHAR_LENGTH(a)
 DROP TABLE t1;
 SELECT _eucjpms 0x8EA0;
 ERROR HY000: Invalid eucjpms character string: '8EA0'
+SET NAMES eucjpms;
+#
+# MDEV-13118 Wrong results with LOWER and UPPER and subquery
+#
+SET @save_optimizer_switch=@@optimizer_switch;
+SET optimizer_switch=_latin1'derived_merge=on';
+CREATE TABLE t1 AS SELECT REPEAT('a', 10) AS t LIMIT 0;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `t` varchar(10) CHARACTER SET eucjpms DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+INSERT INTO t1 VALUES ('abcdefghi'),('ABCDEFGHI');
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT LOWER(t) t2 FROM t1) sub;
+c2
+abcdefghi-abcdefghi
+abcdefghi-abcdefghi
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT UPPER(t) t2 FROM t1) sub;
+c2
+ABCDEFGHI-ABCDEFGHI
+ABCDEFGHI-ABCDEFGHI
+DROP TABLE t1;
+SET optimizer_switch=@save_optimizer_switch;
 #
 # End of 10.0 tests
 #
--- a/mysql-test/main/ctype_eucjpms.test
+++ b/mysql-test/main/ctype_eucjpms.test
@ -537,6 +537,8 @@ DROP TABLE t1;
 --error ER_INVALID_CHARACTER_STRING
 SELECT _eucjpms 0x8EA0;

+SET NAMES eucjpms;
+--source include/ctype_mdev13118.inc

 --echo #
 --echo # End of 10.0 tests
--- a/mysql-test/main/ctype_euckr.result
+++ b/mysql-test/main/ctype_euckr.result
@ -25405,6 +25405,35 @@ A1A1A1A1A1A120202020202020202020202020202020202020
 # End of 5.6 tests
 #
 #
+# Start of 10.0 tests
+#
+SET NAMES utf8, character_set_connection=euckr;
+#
+# MDEV-13118 Wrong results with LOWER and UPPER and subquery
+#
+SET @save_optimizer_switch=@@optimizer_switch;
+SET optimizer_switch=_latin1'derived_merge=on';
+CREATE TABLE t1 AS SELECT REPEAT('a', 10) AS t LIMIT 0;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `t` varchar(10) CHARACTER SET euckr DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+INSERT INTO t1 VALUES ('abcdefghi'),('ABCDEFGHI');
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT LOWER(t) t2 FROM t1) sub;
+c2
+abcdefghi-abcdefghi
+abcdefghi-abcdefghi
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT UPPER(t) t2 FROM t1) sub;
+c2
+ABCDEFGHI-ABCDEFGHI
+ABCDEFGHI-ABCDEFGHI
+DROP TABLE t1;
+SET optimizer_switch=@save_optimizer_switch;
+#
+# End of 10.0 tests
+#
+#
 # Start of 10.2 tests
 #
 #
--- a/mysql-test/main/ctype_euckr.test
+++ b/mysql-test/main/ctype_euckr.test
@ -197,6 +197,16 @@ set collation_connection=euckr_bin;
 --echo # End of 5.6 tests
 --echo #

+--echo #
+--echo # Start of 10.0 tests
+--echo #
+
+SET NAMES utf8, character_set_connection=euckr;
+--source include/ctype_mdev13118.inc
+
+--echo #
+--echo # End of 10.0 tests
+--echo #

 --echo #
 --echo # Start of 10.2 tests
--- a/mysql-test/main/ctype_gbk.result
+++ b/mysql-test/main/ctype_gbk.result
@ -5081,6 +5081,29 @@ E05C5B
 E05B
 DROP TABLE t1;
 # Start of ctype_E05C.inc
+SET NAMES utf8, character_set_connection=gbk;
+#
+# MDEV-13118 Wrong results with LOWER and UPPER and subquery
+#
+SET @save_optimizer_switch=@@optimizer_switch;
+SET optimizer_switch=_latin1'derived_merge=on';
+CREATE TABLE t1 AS SELECT REPEAT('a', 10) AS t LIMIT 0;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `t` varchar(10) CHARACTER SET gbk DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+INSERT INTO t1 VALUES ('abcdefghi'),('ABCDEFGHI');
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT LOWER(t) t2 FROM t1) sub;
+c2
+abcdefghi-abcdefghi
+abcdefghi-abcdefghi
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT UPPER(t) t2 FROM t1) sub;
+c2
+ABCDEFGHI-ABCDEFGHI
+ABCDEFGHI-ABCDEFGHI
+DROP TABLE t1;
+SET optimizer_switch=@save_optimizer_switch;
 #
 # MDEV-9886 Illegal mix of collations with a view comparing a field to a binary constant
 #
--- a/mysql-test/main/ctype_gbk.test
+++ b/mysql-test/main/ctype_gbk.test
@ -199,6 +199,9 @@ let $ctype_unescape_combinations=selected;
 SET NAMES gbk;
 --source include/ctype_E05C.inc

+SET NAMES utf8, character_set_connection=gbk;
+--source include/ctype_mdev13118.inc
+
 --echo #
 --echo # MDEV-9886 Illegal mix of collations with a view comparing a field to a binary constant
 --echo #
--- a/mysql-test/main/ctype_latin1.result
+++ b/mysql-test/main/ctype_latin1.result
@ -8022,6 +8022,29 @@ a
 0
 DROP VIEW v1;
 DROP TABLE t1;
+SET NAMES latin1;
+#
+# MDEV-13118 Wrong results with LOWER and UPPER and subquery
+#
+SET @save_optimizer_switch=@@optimizer_switch;
+SET optimizer_switch=_latin1'derived_merge=on';
+CREATE TABLE t1 AS SELECT REPEAT('a', 10) AS t LIMIT 0;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `t` varchar(10) DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+INSERT INTO t1 VALUES ('abcdefghi'),('ABCDEFGHI');
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT LOWER(t) t2 FROM t1) sub;
+c2
+abcdefghi-abcdefghi
+abcdefghi-abcdefghi
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT UPPER(t) t2 FROM t1) sub;
+c2
+ABCDEFGHI-ABCDEFGHI
+ABCDEFGHI-ABCDEFGHI
+DROP TABLE t1;
+SET optimizer_switch=@save_optimizer_switch;
 #
 # End of 10.0 tests
 #
--- a/mysql-test/main/ctype_latin1.test
+++ b/mysql-test/main/ctype_latin1.test
@ -262,6 +262,9 @@ SELECT * FROM v1;
 DROP VIEW v1;
 DROP TABLE t1;

+SET NAMES latin1;
+--source include/ctype_mdev13118.inc
+

 --echo #
 --echo # End of 10.0 tests
--- a/mysql-test/main/ctype_ucs.result
+++ b/mysql-test/main/ctype_ucs.result
@ -5690,6 +5690,29 @@ c2
 YWJjZGVmZ2hp-YWJjZGVmZ2hp
 DROP TABLE t1;
 SET optimizer_switch=@save_optimizer_switch;
+SET NAMES utf8, character_set_connection=ucs2;
+#
+# MDEV-13118 Wrong results with LOWER and UPPER and subquery
+#
+SET @save_optimizer_switch=@@optimizer_switch;
+SET optimizer_switch=_latin1'derived_merge=on';
+CREATE TABLE t1 AS SELECT REPEAT('a', 10) AS t LIMIT 0;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `t` varchar(10) CHARACTER SET ucs2 DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+INSERT INTO t1 VALUES ('abcdefghi'),('ABCDEFGHI');
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT LOWER(t) t2 FROM t1) sub;
+c2
+abcdefghi-abcdefghi
+abcdefghi-abcdefghi
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT UPPER(t) t2 FROM t1) sub;
+c2
+ABCDEFGHI-ABCDEFGHI
+ABCDEFGHI-ABCDEFGHI
+DROP TABLE t1;
+SET optimizer_switch=@save_optimizer_switch;
 #
 # End of 10.0 tests
 #
--- a/mysql-test/main/ctype_ucs.test
+++ b/mysql-test/main/ctype_ucs.test
@ -992,6 +992,10 @@ DROP TABLE t1;
 SET optimizer_switch=@save_optimizer_switch;


+SET NAMES utf8, character_set_connection=ucs2;
+--source include/ctype_mdev13118.inc
+
+
 --echo #
 --echo # End of 10.0 tests
 --echo #
--- a/mysql-test/main/ctype_ujis.result
+++ b/mysql-test/main/ctype_ujis.result
@ -26149,6 +26149,29 @@ HEX(a)	CHAR_LENGTH(a)
 DROP TABLE t1;
 SELECT _ujis 0x8EA0;
 ERROR HY000: Invalid ujis character string: '8EA0'
+SET NAMES ujis;
+#
+# MDEV-13118 Wrong results with LOWER and UPPER and subquery
+#
+SET @save_optimizer_switch=@@optimizer_switch;
+SET optimizer_switch=_latin1'derived_merge=on';
+CREATE TABLE t1 AS SELECT REPEAT('a', 10) AS t LIMIT 0;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `t` varchar(10) CHARACTER SET ujis DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+INSERT INTO t1 VALUES ('abcdefghi'),('ABCDEFGHI');
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT LOWER(t) t2 FROM t1) sub;
+c2
+abcdefghi-abcdefghi
+abcdefghi-abcdefghi
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT UPPER(t) t2 FROM t1) sub;
+c2
+ABCDEFGHI-ABCDEFGHI
+ABCDEFGHI-ABCDEFGHI
+DROP TABLE t1;
+SET optimizer_switch=@save_optimizer_switch;
 #
 # End of 10.0 tests
 #
--- a/mysql-test/main/ctype_ujis.test
+++ b/mysql-test/main/ctype_ujis.test
@ -1368,6 +1368,10 @@ DROP TABLE t1;
 SELECT _ujis 0x8EA0;


+SET NAMES ujis;
+--source include/ctype_mdev13118.inc
+
+
 --echo #
 --echo # End of 10.0 tests
 --echo #
--- a/mysql-test/main/ctype_utf16.result
+++ b/mysql-test/main/ctype_utf16.result
@ -2142,6 +2142,29 @@ EXECUTE stmt USING @arg00;
 CONCAT(_utf16'a' COLLATE utf16_unicode_ci, ?)
 aÿ
 DEALLOCATE PREPARE stmt;
+SET NAMES utf8, character_set_connection=utf16;
+#
+# MDEV-13118 Wrong results with LOWER and UPPER and subquery
+#
+SET @save_optimizer_switch=@@optimizer_switch;
+SET optimizer_switch=_latin1'derived_merge=on';
+CREATE TABLE t1 AS SELECT REPEAT('a', 10) AS t LIMIT 0;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `t` varchar(10) CHARACTER SET utf16 DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+INSERT INTO t1 VALUES ('abcdefghi'),('ABCDEFGHI');
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT LOWER(t) t2 FROM t1) sub;
+c2
+abcdefghi-abcdefghi
+abcdefghi-abcdefghi
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT UPPER(t) t2 FROM t1) sub;
+c2
+ABCDEFGHI-ABCDEFGHI
+ABCDEFGHI-ABCDEFGHI
+DROP TABLE t1;
+SET optimizer_switch=@save_optimizer_switch;
 #
 # End of 10.0 tests
 #
--- a/mysql-test/main/ctype_utf16.test
+++ b/mysql-test/main/ctype_utf16.test
@ -870,6 +870,11 @@ SET @arg00=_binary 0x00FF;
 EXECUTE stmt USING @arg00;
 DEALLOCATE PREPARE stmt;

+
+SET NAMES utf8, character_set_connection=utf16;
+--source include/ctype_mdev13118.inc
+
+
 --echo #
 --echo # End of 10.0 tests
 --echo #
--- a/mysql-test/main/ctype_utf16le.result
+++ b/mysql-test/main/ctype_utf16le.result
@ -2326,6 +2326,35 @@ DFFFFFDFFFFF9CFFFF9DFFFF9EFFFF
 # End of 5.6 tests
 #
 #
+# Start of 10.0 tests
+#
+SET NAMES utf8, character_set_connection=utf16le;
+#
+# MDEV-13118 Wrong results with LOWER and UPPER and subquery
+#
+SET @save_optimizer_switch=@@optimizer_switch;
+SET optimizer_switch=_latin1'derived_merge=on';
+CREATE TABLE t1 AS SELECT REPEAT('a', 10) AS t LIMIT 0;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `t` varchar(10) CHARACTER SET utf16le DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+INSERT INTO t1 VALUES ('abcdefghi'),('ABCDEFGHI');
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT LOWER(t) t2 FROM t1) sub;
+c2
+abcdefghi-abcdefghi
+abcdefghi-abcdefghi
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT UPPER(t) t2 FROM t1) sub;
+c2
+ABCDEFGHI-ABCDEFGHI
+ABCDEFGHI-ABCDEFGHI
+DROP TABLE t1;
+SET optimizer_switch=@save_optimizer_switch;
+#
+# Start of 10.0 tests
+#
+#
 # Start of 10.1 tests
 #
 #
--- a/mysql-test/main/ctype_utf16le.test
+++ b/mysql-test/main/ctype_utf16le.test
@ -747,6 +747,19 @@ SET NAMES utf8, collation_connection=utf16le_bin;
 --echo # End of 5.6 tests
 --echo #

+
+--echo #
+--echo # Start of 10.0 tests
+--echo #
+
+
+SET NAMES utf8, character_set_connection=utf16le;
+--source include/ctype_mdev13118.inc
+
+--echo #
+--echo # Start of 10.0 tests
+--echo #
+
 --echo #
 --echo # Start of 10.1 tests
 --echo #
--- a/mysql-test/main/ctype_utf32.result
+++ b/mysql-test/main/ctype_utf32.result
@ -2241,6 +2241,29 @@ EXECUTE stmt USING @arg00;
 CONCAT(_utf32'a' COLLATE utf32_unicode_ci, ?)
 aÿ
 DEALLOCATE PREPARE stmt;
+SET NAMEs utf8, character_set_connection=utf32;
+#
+# MDEV-13118 Wrong results with LOWER and UPPER and subquery
+#
+SET @save_optimizer_switch=@@optimizer_switch;
+SET optimizer_switch=_latin1'derived_merge=on';
+CREATE TABLE t1 AS SELECT REPEAT('a', 10) AS t LIMIT 0;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `t` varchar(10) CHARACTER SET utf32 DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+INSERT INTO t1 VALUES ('abcdefghi'),('ABCDEFGHI');
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT LOWER(t) t2 FROM t1) sub;
+c2
+abcdefghi-abcdefghi
+abcdefghi-abcdefghi
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT UPPER(t) t2 FROM t1) sub;
+c2
+ABCDEFGHI-ABCDEFGHI
+ABCDEFGHI-ABCDEFGHI
+DROP TABLE t1;
+SET optimizer_switch=@save_optimizer_switch;
 #
 # End of 10.0 tests
 #
--- a/mysql-test/main/ctype_utf32.test
+++ b/mysql-test/main/ctype_utf32.test
@ -983,6 +983,14 @@ SET @arg00=_binary 0x00FF;
 EXECUTE stmt USING @arg00;
 DEALLOCATE PREPARE stmt;

+
+#
+# MDEV-13118 Wrong results with LOWER and UPPER and subquery
+#
+SET NAMEs utf8, character_set_connection=utf32;
+--source include/ctype_mdev13118.inc
+
+
 --echo #
 --echo # End of 10.0 tests
 --echo #
--- a/mysql-test/main/ctype_utf8.result
+++ b/mysql-test/main/ctype_utf8.result
@ -10286,6 +10286,29 @@ SELECT * FROM v1;
 c
 ß
 DROP VIEW v1;
+SET NAMES utf8;
+#
+# MDEV-13118 Wrong results with LOWER and UPPER and subquery
+#
+SET @save_optimizer_switch=@@optimizer_switch;
+SET optimizer_switch=_latin1'derived_merge=on';
+CREATE TABLE t1 AS SELECT REPEAT('a', 10) AS t LIMIT 0;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `t` varchar(10) CHARACTER SET utf8 DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+INSERT INTO t1 VALUES ('abcdefghi'),('ABCDEFGHI');
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT LOWER(t) t2 FROM t1) sub;
+c2
+abcdefghi-abcdefghi
+abcdefghi-abcdefghi
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT UPPER(t) t2 FROM t1) sub;
+c2
+ABCDEFGHI-ABCDEFGHI
+ABCDEFGHI-ABCDEFGHI
+DROP TABLE t1;
+SET optimizer_switch=@save_optimizer_switch;
 #
 # End of 10.0 tests
 #
--- a/mysql-test/main/ctype_utf8.test
+++ b/mysql-test/main/ctype_utf8.test
@ -1890,6 +1890,13 @@ SELECT * FROM v1;
 DROP VIEW v1;


+#
+# MDEV-13118 Wrong results with LOWER and UPPER and subquery
+#
+SET NAMES utf8;
+--source include/ctype_mdev13118.inc
+
+
 --echo #
 --echo # End of 10.0 tests
 --echo #
--- a/mysql-test/main/ctype_utf8mb4.result
+++ b/mysql-test/main/ctype_utf8mb4.result
@ -3478,6 +3478,29 @@ t1	CREATE TABLE `t1` (
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1
 DROP TABLE t1;
 SET NAMES default;
+SET NAMES utf8mb4;
+#
+# MDEV-13118 Wrong results with LOWER and UPPER and subquery
+#
+SET @save_optimizer_switch=@@optimizer_switch;
+SET optimizer_switch=_latin1'derived_merge=on';
+CREATE TABLE t1 AS SELECT REPEAT('a', 10) AS t LIMIT 0;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `t` varchar(10) CHARACTER SET utf8mb4 DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+INSERT INTO t1 VALUES ('abcdefghi'),('ABCDEFGHI');
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT LOWER(t) t2 FROM t1) sub;
+c2
+abcdefghi-abcdefghi
+abcdefghi-abcdefghi
+SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT UPPER(t) t2 FROM t1) sub;
+c2
+ABCDEFGHI-ABCDEFGHI
+ABCDEFGHI-ABCDEFGHI
+DROP TABLE t1;
+SET optimizer_switch=@save_optimizer_switch;
 #
 # End of 10.0 tests
 #
--- a/mysql-test/main/ctype_utf8mb4.test
+++ b/mysql-test/main/ctype_utf8mb4.test
@ -1959,6 +1959,14 @@ DROP TABLE t1;

 SET NAMES default;

+
+#
+# MDEV-13118 Wrong results with LOWER and UPPER and subquery
+#
+SET NAMES utf8mb4;
+--source include/ctype_mdev13118.inc
+
+
 --echo #
 --echo # End of 10.0 tests
 --echo #
--- a/mysql-test/main/derived.result
+++ b/mysql-test/main/derived.result
@ -1053,6 +1053,7 @@ INSERT INTO t2 VALUES (NULL),(NULL);
 CREATE TABLE t3 (c VARCHAR(1024) CHARACTER SET utf8, d INT) ENGINE=MyISAM;
 CREATE OR REPLACE ALGORITHM=TEMPTABLE VIEW v3 AS SELECT * FROM t3;
 INSERT INTO t3 VALUES ('abc',NULL),('def',4);
+set @save_join_cache_level= @@join_cache_level;
 SET join_cache_level= 8;
 explain
 SELECT * FROM v1, t2, v3 WHERE a = c AND b = d;
@ -1082,6 +1083,38 @@ i
 drop procedure pr;
 drop view v1;
 drop table t1;
+set @@join_cache_level= @save_join_cache_level;
+#
+# MDEV-16307: Incorrect results when using BNLH join instead of BNL join with views
+#
+CREATE TABLE t1 (c1 text, c2 int);
+INSERT INTO t1 VALUES ('a',1), ('c',3), ('g',7), ('d',4), ('c',3);
+CREATE TABLE t2 (c1 text, c2 int);
+INSERT INTO t2 VALUES ('b',2), ('c',3);
+CREATE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;
+explain SELECT v1.c1, v1.c2, t2.c1, t2.c2 FROM v1, t2 WHERE v1.c1=t2.c1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	
+1	PRIMARY	<derived2>	ALL	NULL	NULL	NULL	NULL	5	Using where; Using join buffer (flat, BNL join)
+2	DERIVED	t1	ALL	NULL	NULL	NULL	NULL	5	
+SELECT v1.c1, v1.c2, t2.c1, t2.c2 FROM v1, t2 WHERE v1.c1=t2.c1;
+c1	c2	c1	c2
+c	3	c	3
+c	3	c	3
+set @save_join_cache_level= @@join_cache_level;
+set @@join_cache_level=4;
+explain SELECT v1.c1, v1.c2, t2.c1, t2.c2 FROM v1, t2 WHERE v1.c1=t2.c1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where
+1	PRIMARY	<derived2>	hash_ALL	NULL	#hash#$hj	3	test.t2.c1	5	Using where; Using join buffer (flat, BNLH join)
+2	DERIVED	t1	ALL	NULL	NULL	NULL	NULL	5	
+SELECT v1.c1, v1.c2, t2.c1, t2.c2 FROM v1, t2 WHERE v1.c1=t2.c1;
+c1	c2	c1	c2
+c	3	c	3
+c	3	c	3
+drop table t1,t2;
+drop view v1;
+set @@join_cache_level= @save_join_cache_level;
 # end of 5.5
 #
 # Start of 10.1 tests
--- a/mysql-test/main/derived.test
+++ b/mysql-test/main/derived.test
@ -913,6 +913,7 @@ CREATE TABLE t3 (c VARCHAR(1024) CHARACTER SET utf8, d INT) ENGINE=MyISAM;
 CREATE OR REPLACE ALGORITHM=TEMPTABLE VIEW v3 AS SELECT * FROM t3;
 INSERT INTO t3 VALUES ('abc',NULL),('def',4);

+set @save_join_cache_level= @@join_cache_level;
 SET join_cache_level= 8;
 explain
 SELECT * FROM v1, t2, v3 WHERE a = c AND b = d;
@ -935,7 +936,27 @@ call pr(2);
 drop procedure pr;
 drop view v1;
 drop table t1;
+set @@join_cache_level= @save_join_cache_level;

+--echo #
+--echo # MDEV-16307: Incorrect results when using BNLH join instead of BNL join with views
+--echo #
+
+CREATE TABLE t1 (c1 text, c2 int);
+INSERT INTO t1 VALUES ('a',1), ('c',3), ('g',7), ('d',4), ('c',3);
+CREATE TABLE t2 (c1 text, c2 int);
+INSERT INTO t2 VALUES ('b',2), ('c',3);
+CREATE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;
+
+explain SELECT v1.c1, v1.c2, t2.c1, t2.c2 FROM v1, t2 WHERE v1.c1=t2.c1;
+SELECT v1.c1, v1.c2, t2.c1, t2.c2 FROM v1, t2 WHERE v1.c1=t2.c1;
+set @save_join_cache_level= @@join_cache_level;
+set @@join_cache_level=4;
+explain SELECT v1.c1, v1.c2, t2.c1, t2.c2 FROM v1, t2 WHERE v1.c1=t2.c1;
+SELECT v1.c1, v1.c2, t2.c1, t2.c2 FROM v1, t2 WHERE v1.c1=t2.c1;
+drop table t1,t2;
+drop view v1;
+set @@join_cache_level= @save_join_cache_level;
 --echo # end of 5.5

 --echo #
--- a/mysql-test/main/derived_cond_pushdown.result
+++ b/mysql-test/main/derived_cond_pushdown.result
@ -15960,3 +15960,123 @@ f	c
 9	1
 DROP VIEW v1;
 DROP TABLE t1;
+#
+# MDEV-15087: error from inexpensive subquery before check
+#                   for condition pushdown into derived 
+#
+CREATE TABLE t1 (i1 int, v1 varchar(1));
+INSERT INTO t1 VALUES (7,'x');
+CREATE TABLE t2 (i1 int);
+INSERT INTO t2 VALUES (8);
+CREATE TABLE t3 (i1 int ,v1 varchar(1), v2 varchar(1));
+INSERT INTO t3 VALUES (4, 'v','v'),(62,'v','k'),(7, 'n', NULL);
+SELECT 1
+FROM (t1 AS a1
+JOIN (((SELECT  DISTINCT t3.*
+FROM t3) AS a2
+JOIN t1 ON (t1.v1 = a2.v2))) ON (t1.v1 = a2.v1))
+WHERE (SELECT  BIT_COUNT(t2.i1)
+FROM (t2 JOIN t3)) IS NULL;
+ERROR 21000: Subquery returns more than 1 row
+DROP TABLE t1, t2, t3;
+#
+# MDEV-16614 signal 7 after calling stored procedure, that uses regexp
+#
+CREATE PROCEDURE p1(m1 varchar(5), m2 varchar(5))
+BEGIN
+SELECT a FROM
+(SELECT "aa" a) t
+JOIN (SELECT "aa" b) t1 on t.a=t1.b
+WHERE t.a regexp m1 and t1.b regexp m2
+GROUP BY a;
+END$$
+CALL p1('a','a');
+a
+aa
+DROP PROCEDURE p1;
+CREATE PROCEDURE p1(m1 varchar(5))
+BEGIN
+SELECT a FROM (SELECT "aa" a) t WHERE t.a regexp m1;
+END$$
+CALL p1('a');
+a
+aa
+DROP PROCEDURE p1;
+SELECT a FROM (SELECT "aa" a) t WHERE REGEXP_INSTR(t.a, (SELECT MAX('aa') FROM DUAL LIMIT 1));
+a
+aa
+CREATE OR REPLACE FUNCTION f1(a VARCHAR(10), b VARCHAR(10)) RETURNS INT
+BEGIN
+RETURN 1;
+END;$$
+CREATE OR REPLACE PROCEDURE p1(m1 varchar(5))
+BEGIN
+SELECT a FROM (SELECT "aa" a) t WHERE f1(t.a, m1);
+END$$
+CALL p1('a');
+a
+aa
+DROP PROCEDURE p1;
+DROP FUNCTION f1;
+CREATE OR REPLACE FUNCTION f1(a VARCHAR(10), b VARCHAR(10)) RETURNS INT
+BEGIN
+RETURN 1;
+END;$$
+SELECT a FROM (SELECT "aa" a) t WHERE f1(t.a, (SELECT MAX('aa') FROM DUAL LIMIT 1));
+a
+aa
+DROP FUNCTION f1;
+#
+# MDEV-16801: splittable materialized derived/views with
+#             one grouping field from table without keys
+#
+CREATE TABLE t1 (a int, b int, INDEX idx_a(a), INDEX idx_b(b)) ENGINE=MYISAM;
+CREATE TABLE t2 (c int) ENGINE=MYISAM;
+CREATE TABLE t3 (d int) ENGINE=MYISAM;
+INSERT INTO t1 VALUES
+(77,7), (11,1), (33,3), (44,4), (8,88),
+(78,7), (98,9), (38,3), (28,2), (79,7),
+(58,5), (42,4), (71,7), (27,2), (91,9);
+INSERT INTO t1 SELECT a+100, b+10 FROM t1;
+INSERT INTO t2 VALUES
+(100), (700), (200), (100), (200);
+INSERT INTO t3 VALUES
+(3), (4), (1), (8), (3);
+ANALYZE tables t1,t2,t3;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	OK
+test.t2	analyze	status	OK
+test.t3	analyze	status	OK
+SELECT *
+FROM t3,
+(SELECT t1.b, t2.c
+FROM  t1, t2
+GROUP BY t1.b,t2.c) dt
+WHERE t3.d = dt.b;
+d	b	c
+3	3	700
+3	3	200
+3	3	100
+4	4	700
+4	4	200
+4	4	100
+1	1	700
+1	1	200
+1	1	100
+3	3	700
+3	3	200
+3	3	100
+EXPLAIN EXTENDED SELECT *
+FROM t3,
+(SELECT t1.b, t2.c
+FROM  t1, t2
+GROUP BY t1.b,t2.c) dt
+WHERE t3.d = dt.b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	5	100.00	Using where
+1	PRIMARY	<derived2>	ref	key0	key0	5	test.t3.d	2	100.00	
+2	LATERAL DERIVED	t1	ref	idx_b	idx_b	5	test.t3.d	2	100.00	Using index; Using temporary; Using filesort
+2	LATERAL DERIVED	t2	ALL	NULL	NULL	NULL	NULL	5	100.00	Using join buffer (flat, BNL join)
+Warnings:
+Note	1003	/* select#1 */ select `test`.`t3`.`d` AS `d`,`dt`.`b` AS `b`,`dt`.`c` AS `c` from `test`.`t3` join (/* select#2 */ select `test`.`t1`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t1` join `test`.`t2` where `test`.`t1`.`b` = `test`.`t3`.`d` group by `test`.`t1`.`b`,`test`.`t2`.`c`) `dt` where `dt`.`b` = `test`.`t3`.`d`
+DROP TABLE t1,t2,t3;
--- a/mysql-test/main/derived_cond_pushdown.test
+++ b/mysql-test/main/derived_cond_pushdown.test
@ -2906,3 +2906,116 @@ SELECT * FROM ( SELECT STRAIGHT_JOIN f, COUNT(*) as c FROM v1 GROUP BY f ) AS s;

 DROP VIEW v1;
 DROP TABLE t1;
+
+--echo #
+--echo # MDEV-15087: error from inexpensive subquery before check
+--echo #                   for condition pushdown into derived 
+--echo #
+
+CREATE TABLE t1 (i1 int, v1 varchar(1));
+INSERT INTO t1 VALUES (7,'x');
+
+CREATE TABLE t2 (i1 int);
+INSERT INTO t2 VALUES (8);
+
+CREATE TABLE t3 (i1 int ,v1 varchar(1), v2 varchar(1));
+INSERT INTO t3 VALUES (4, 'v','v'),(62,'v','k'),(7, 'n', NULL);
+
+--error ER_SUBQUERY_NO_1_ROW
+SELECT 1
+FROM (t1 AS a1
+      JOIN (((SELECT  DISTINCT t3.*
+              FROM t3) AS a2
+             JOIN t1 ON (t1.v1 = a2.v2))) ON (t1.v1 = a2.v1))
+WHERE (SELECT  BIT_COUNT(t2.i1)
+       FROM (t2 JOIN t3)) IS NULL;
+
+DROP TABLE t1, t2, t3;
+
+--echo #
+--echo # MDEV-16614 signal 7 after calling stored procedure, that uses regexp
+--echo #
+
+DELIMITER $$;
+CREATE PROCEDURE p1(m1 varchar(5), m2 varchar(5))
+BEGIN
+SELECT a FROM
+	(SELECT "aa" a) t
+	JOIN (SELECT "aa" b) t1 on t.a=t1.b
+WHERE t.a regexp m1 and t1.b regexp m2
+GROUP BY a;
+END$$
+DELIMITER ;$$
+CALL p1('a','a');
+DROP PROCEDURE p1;
+
+
+DELIMITER $$;
+CREATE PROCEDURE p1(m1 varchar(5))
+BEGIN
+  SELECT a FROM (SELECT "aa" a) t WHERE t.a regexp m1;
+END$$
+DELIMITER ;$$
+CALL p1('a');
+DROP PROCEDURE p1;
+
+
+SELECT a FROM (SELECT "aa" a) t WHERE REGEXP_INSTR(t.a, (SELECT MAX('aa') FROM DUAL LIMIT 1));
+
+
+DELIMITER $$;
+CREATE OR REPLACE FUNCTION f1(a VARCHAR(10), b VARCHAR(10)) RETURNS INT
+BEGIN
+  RETURN 1;
+END;$$
+CREATE OR REPLACE PROCEDURE p1(m1 varchar(5))
+BEGIN
+  SELECT a FROM (SELECT "aa" a) t WHERE f1(t.a, m1);
+END$$
+DELIMITER ;$$
+CALL p1('a');
+DROP PROCEDURE p1;
+DROP FUNCTION f1;
+
+
+DELIMITER $$;
+CREATE OR REPLACE FUNCTION f1(a VARCHAR(10), b VARCHAR(10)) RETURNS INT
+BEGIN
+  RETURN 1;
+END;$$
+DELIMITER ;$$
+SELECT a FROM (SELECT "aa" a) t WHERE f1(t.a, (SELECT MAX('aa') FROM DUAL LIMIT 1));
+DROP FUNCTION f1;
+
+--echo #
+--echo # MDEV-16801: splittable materialized derived/views with
+--echo #             one grouping field from table without keys
+--echo #
+
+CREATE TABLE t1 (a int, b int, INDEX idx_a(a), INDEX idx_b(b)) ENGINE=MYISAM;
+CREATE TABLE t2 (c int) ENGINE=MYISAM;
+CREATE TABLE t3 (d int) ENGINE=MYISAM;
+INSERT INTO t1 VALUES
+  (77,7), (11,1), (33,3), (44,4), (8,88),
+  (78,7), (98,9), (38,3), (28,2), (79,7),
+  (58,5), (42,4), (71,7), (27,2), (91,9);
+INSERT INTO t1 SELECT a+100, b+10 FROM t1;
+INSERT INTO t2 VALUES
+  (100), (700), (200), (100), (200);
+INSERT INTO t3 VALUES
+  (3), (4), (1), (8), (3);
+
+ANALYZE tables t1,t2,t3;
+
+let $q=
+SELECT *
+  FROM t3,
+       (SELECT t1.b, t2.c
+          FROM  t1, t2
+            GROUP BY t1.b,t2.c) dt
+WHERE t3.d = dt.b;
+
+eval $q;
+eval EXPLAIN EXTENDED $q;
+
+DROP TABLE t1,t2,t3;
--- a/mysql-test/main/func_json.result
+++ b/mysql-test/main/func_json.result
@ -761,6 +761,36 @@ t1	CREATE TABLE `t1` (
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1
 DROP TABLE t1;
 #
+# MDEV-16054 simple json functions flatline cpu on garbage input.
+#
+select json_array(1,uuid(),compress(5.140264e+307));
+json_array(1,uuid(),compress(5.140264e+307))
+NULL
+#
+# MDEV-16869 String functions don't respect character set of JSON_VALUE.
+#
+create table t1(json_col TEXT) DEFAULT CHARSET=latin1;
+insert into t1 values (_latin1 X'7B226B657931223A2253EC227D');
+select JSON_VALUE(json_col, '$.key1')= _latin1 X'53EC' from t1;
+JSON_VALUE(json_col, '$.key1')= _latin1 X'53EC'
+1
+select REPLACE(JSON_VALUE(json_col, '$.key1'), 'null', '') = _latin1 X'53EC' from t1;
+REPLACE(JSON_VALUE(json_col, '$.key1'), 'null', '') = _latin1 X'53EC'
+1
+drop table t1;
+#
+# MDEV-16750 JSON_SET mishandles unicode every second pair of arguments.
+#
+SELECT JSON_SET('{}', '$.a', _utf8 0xC3B6);
+JSON_SET('{}', '$.a', _utf8 0xC3B6)
+{"a": "<22>"}
+SELECT JSON_SET('{}', '$.a', _utf8 0xC3B6, '$.b', _utf8 0xC3B6);
+JSON_SET('{}', '$.a', _utf8 0xC3B6, '$.b', _utf8 0xC3B6)
+{"a": "<22>", "b": "<22>"}
+SELECT JSON_SET('{}', '$.a', _utf8 X'C3B6', '$.x', 1, '$.b', _utf8 X'C3B6');
+JSON_SET('{}', '$.a', _utf8 X'C3B6', '$.x', 1, '$.b', _utf8 X'C3B6')
+{"a": "<22>", "x": 1, "b": "<22>"}
+#
 # End of 10.2 tests
 #
 #
--- a/mysql-test/main/func_json.test
+++ b/mysql-test/main/func_json.test
@ -422,6 +422,30 @@ CREATE TABLE t1 AS SELECT
 SHOW CREATE TABLE t1;
 DROP TABLE t1;

+--echo #
+--echo # MDEV-16054 simple json functions flatline cpu on garbage input.
+--echo #
+
+select json_array(1,uuid(),compress(5.140264e+307));
+
+--echo #
+--echo # MDEV-16869 String functions don't respect character set of JSON_VALUE.
+--echo #
+
+create table t1(json_col TEXT) DEFAULT CHARSET=latin1;
+insert into t1 values (_latin1 X'7B226B657931223A2253EC227D');
+select JSON_VALUE(json_col, '$.key1')= _latin1 X'53EC' from t1;
+select REPLACE(JSON_VALUE(json_col, '$.key1'), 'null', '') = _latin1 X'53EC' from t1;
+drop table t1;
+
+--echo #
+--echo # MDEV-16750 JSON_SET mishandles unicode every second pair of arguments.
+--echo #
+
+SELECT JSON_SET('{}', '$.a', _utf8 0xC3B6);
+SELECT JSON_SET('{}', '$.a', _utf8 0xC3B6, '$.b', _utf8 0xC3B6);
+SELECT JSON_SET('{}', '$.a', _utf8 X'C3B6', '$.x', 1, '$.b', _utf8 X'C3B6');
+
 --echo #
 --echo # End of 10.2 tests
 --echo #
--- a/mysql-test/main/func_time.result
+++ b/mysql-test/main/func_time.result
@ -3554,6 +3554,38 @@ DROP FUNCTION fn_sleep_before_now;
 DROP TRIGGER trg_insert_t_ts;
 DROP TABLE t_ts, t_trig;
 #
+# MDEV-16878 Functions ADDTIME and SUBTIME get wrongly removed from WHERE by the equal expression optimizer
+#
+CREATE TABLE t1 (a TIME);
+INSERT INTO t1 VALUES ('00:00:10'),('00:00:20');
+SELECT a, SUBTIME(a,TIME'00:00:01'), ADDTIME(a,TIME'00:00:01') FROM t1;
+a	SUBTIME(a,TIME'00:00:01')	ADDTIME(a,TIME'00:00:01')
+00:00:10	00:00:09	00:00:11
+00:00:20	00:00:19	00:00:21
+SELECT * FROM t1 WHERE SUBTIME(a,TIME'00:00:01')=TIME'00:00:09';
+a
+00:00:10
+SELECT * FROM t1 WHERE ADDTIME(a,TIME'00:00:01')<=TIME'00:00:09';
+a
+SELECT * FROM t1 WHERE SUBTIME(a,TIME'00:00:01')=TIME'00:00:09' AND ADDTIME(a,TIME'00:00:01')<=TIME'00:00:09';
+a
+EXPLAIN EXTENDED SELECT * FROM t1 WHERE SUBTIME(a,TIME'00:00:01')=TIME'00:00:09' AND ADDTIME(a,TIME'00:00:01')<=TIME'00:00:09';
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where subtime(`test`.`t1`.`a`,TIME'00:00:01') = TIME'00:00:09' and addtime(`test`.`t1`.`a`,TIME'00:00:01') <= TIME'00:00:09'
+DROP TABLE t1;
+#
+# MDEV-15363 Wrong result for CAST(LAST_DAY(TIME'00:00:00') AS TIME)
+#
+SELECT
+LAST_DAY(TIME'00:00:00') AS c1,
+CAST(CAST(LAST_DAY(TIME'00:00:00') AS DATE) AS TIME) AS c2,
+CAST(LAST_DAY(TIME'00:00:00') AS TIME) AS c3;
+c1	c2	c3
+2018-08-31	00:00:00	00:00:00
+# End of 10.3 tests
+#
 # MDEV-14032 SEC_TO_TIME executes side effect two times
 #
 SET @a=10000000;
--- a/mysql-test/main/func_time.test
+++ b/mysql-test/main/func_time.test
@ -2140,6 +2140,31 @@ DROP TABLE t_ts, t_trig;
 ###################


+--echo #
+--echo # MDEV-16878 Functions ADDTIME and SUBTIME get wrongly removed from WHERE by the equal expression optimizer
+--echo #
+
+CREATE TABLE t1 (a TIME);
+INSERT INTO t1 VALUES ('00:00:10'),('00:00:20');
+SELECT a, SUBTIME(a,TIME'00:00:01'), ADDTIME(a,TIME'00:00:01') FROM t1;
+SELECT * FROM t1 WHERE SUBTIME(a,TIME'00:00:01')=TIME'00:00:09';
+SELECT * FROM t1 WHERE ADDTIME(a,TIME'00:00:01')<=TIME'00:00:09'; 
+SELECT * FROM t1 WHERE SUBTIME(a,TIME'00:00:01')=TIME'00:00:09' AND ADDTIME(a,TIME'00:00:01')<=TIME'00:00:09'; 
+EXPLAIN EXTENDED SELECT * FROM t1 WHERE SUBTIME(a,TIME'00:00:01')=TIME'00:00:09' AND ADDTIME(a,TIME'00:00:01')<=TIME'00:00:09'; 
+DROP TABLE t1;
+
+
+--echo #
+--echo # MDEV-15363 Wrong result for CAST(LAST_DAY(TIME'00:00:00') AS TIME)
+--echo #
+
+SELECT
+  LAST_DAY(TIME'00:00:00') AS c1,
+  CAST(CAST(LAST_DAY(TIME'00:00:00') AS DATE) AS TIME) AS c2,
+  CAST(LAST_DAY(TIME'00:00:00') AS TIME) AS c3;
+
+--echo # End of 10.3 tests
+
 --echo #
 --echo # MDEV-14032 SEC_TO_TIME executes side effect two times
 --echo #
--- a/mysql-test/main/grant.result
+++ b/mysql-test/main/grant.result
@ -1759,6 +1759,7 @@ drop user mysqltest@localhost;
 disconnect user1;
 drop database mysqltest;
 use test;
+call mtr.add_suppression("Can't open and lock privilege tables");
 FLUSH PRIVILEGES without procs_priv table.
 RENAME TABLE mysql.procs_priv TO mysql.procs_gone;
 FLUSH PRIVILEGES;
@ -1852,8 +1853,6 @@ BEGIN
 SET @x = 0;
 REPEAT SET @x = @x + 1; UNTIL @x > p1 END REPEAT;
 END ;||
-Warnings:
-Warning	1404	Failed to grant EXECUTE and ALTER ROUTINE privileges
 connection default;
 SHOW GRANTS FOR 'user1'@'localhost';
 Grants for user1@localhost
@ -1864,6 +1863,7 @@ SHOW GRANTS FOR 'user2';
 Grants for user2@%
 GRANT USAGE ON *.* TO 'user2'@'%'
 GRANT CREATE, CREATE ROUTINE ON `db1`.* TO 'user2'@'%'
+GRANT EXECUTE, ALTER ROUTINE ON PROCEDURE `db1`.`proc2` TO 'user2'@'%'
 disconnect con1;
 disconnect con2;
 DROP PROCEDURE db1.proc1;
--- a/mysql-test/main/grant.test
+++ b/mysql-test/main/grant.test
@ -1598,6 +1598,9 @@ use test;
 #
 # Bug#16470 crash on grant if old grant tables
 #
+
+call mtr.add_suppression("Can't open and lock privilege tables");
+
 --echo FLUSH PRIVILEGES without procs_priv table.
 RENAME TABLE mysql.procs_priv TO mysql.procs_gone;
 FLUSH PRIVILEGES;
--- a/mysql-test/main/invisible_field_debug.result
+++ b/mysql-test/main/invisible_field_debug.result
@ -369,3 +369,8 @@ t1	1	invisible	1	c	A	NULL	NULL	NULL	YES	BTREE
 t1	1	invisible_2	1	invisible	A	NULL	NULL	NULL	YES	BTREE		
 drop table t1;
 set @old_debug= @@debug_dbug;
+CREATE TABLE t1 (i INT );
+SET debug_dbug="+d,test_completely_invisible,test_invisible_index";
+CREATE TABLE t2 LIKE t1;
+SET debug_dbug= DEFAULT;
+DROP TABLE t1, t2;
--- a/mysql-test/main/invisible_field_debug.test
+++ b/mysql-test/main/invisible_field_debug.test
@ -270,3 +270,9 @@ explain select * from t1 where invisible =9;
 show indexes in t1;
 drop table t1;
 set @old_debug= @@debug_dbug;
+## MDEV 15127
+CREATE TABLE t1 (i INT );
+SET debug_dbug="+d,test_completely_invisible,test_invisible_index";
+CREATE TABLE t2 LIKE t1;
+SET debug_dbug= DEFAULT;
+DROP TABLE t1, t2;
--- a/mysql-test/main/join.result
+++ b/mysql-test/main/join.result
@ -1506,6 +1506,46 @@ DROP VIEW v2;
 DROP TABLE t1,t2;
 SET optimizer_switch=@save_optimizer_switch;
 #
+# MDEV-16512
+# Server crashes in find_field_in_table_ref on 2nd execution of SP referring to
+# non-existing field
+#
+CREATE TABLE t (i INT);
+CREATE PROCEDURE p() SELECT t1.f FROM t AS t1 JOIN t AS t2 USING (f);
+CALL p;
+ERROR 42S22: Unknown column 'f' in 'from clause'
+CALL p;
+ERROR 42S22: Unknown column 'f' in 'from clause'
+FLUSH TABLES;
+CALL p;
+ERROR 42S22: Unknown column 'f' in 'from clause'
+DROP TABLE t;
+CREATE TABLE t (f INT);
+CALL p;
+ERROR 42S22: Unknown column 'f' in 'from clause'
+DROP TABLE t;
+CREATE TABLE t (i INT);
+CALL p;
+ERROR 42S22: Unknown column 'f' in 'from clause'
+DROP PROCEDURE p;
+DROP TABLE t;
+CREATE TABLE t1 (a INT, b INT);
+CREATE TABLE t2 (a INT);
+CREATE TABLE t3 (a INT, c INT);
+CREATE TABLE t4 (a INT, c INT);
+CREATE TABLE t5 (a INT, c INT);
+CREATE PROCEDURE p1() SELECT c FROM t1 JOIN (t2 LEFT JOIN t3 USING (a) LEFT JOIN t4 USING (a)
+LEFT JOIN t5 USING (a)) USING (a);
+CALL p1;
+ERROR 23000: Column 'c' in field list is ambiguous
+CALL p1;
+ERROR 23000: Column 'c' in field list is ambiguous
+DROP PROCEDURE p1;
+DROP TABLE t1,t2,t3,t4,t5;
+#
+# End of MariaDB 5.5 tests
+#
+#
 # Bug #35268: Parser can't handle STRAIGHT_JOIN with USING
 #                   
 CREATE TABLE t1 (a int);
--- a/mysql-test/main/join.test
+++ b/mysql-test/main/join.test
@ -1160,6 +1160,59 @@ DROP TABLE t1,t2;

 SET optimizer_switch=@save_optimizer_switch;

+--echo #
+--echo # MDEV-16512
+--echo # Server crashes in find_field_in_table_ref on 2nd execution of SP referring to
+--echo # non-existing field
+--echo #
+
+CREATE TABLE t (i INT);
+CREATE PROCEDURE p() SELECT t1.f FROM t AS t1 JOIN t AS t2 USING (f);
+--error ER_BAD_FIELD_ERROR
+CALL p;
+--error ER_BAD_FIELD_ERROR
+CALL p;
+FLUSH TABLES;
+--error ER_BAD_FIELD_ERROR
+CALL p;
+DROP TABLE t;
+
+#
+# Fix the table definition to match the using
+#
+
+CREATE TABLE t (f INT);
+#
+# The following shouldn't fail as the table is now matching the using
+#
+--error ER_BAD_FIELD_ERROR
+CALL p;
+DROP TABLE t;
+CREATE TABLE t (i INT);
+--error ER_BAD_FIELD_ERROR
+CALL p;
+DROP PROCEDURE p;
+DROP TABLE t;
+
+CREATE TABLE t1 (a INT, b INT);
+CREATE TABLE t2 (a INT);
+CREATE TABLE t3 (a INT, c INT);
+CREATE TABLE t4 (a INT, c INT);
+CREATE TABLE t5 (a INT, c INT);
+CREATE PROCEDURE p1() SELECT c FROM t1 JOIN (t2 LEFT JOIN t3 USING (a) LEFT JOIN t4 USING (a)
+LEFT JOIN t5 USING (a)) USING (a);
+--error ER_NON_UNIQ_ERROR
+CALL p1;
+--error ER_NON_UNIQ_ERROR
+CALL p1;
+DROP PROCEDURE p1;
+DROP TABLE t1,t2,t3,t4,t5;
+
+--echo #
+--echo # End of MariaDB 5.5 tests
+--echo #
+
+
 --echo #
 --echo # Bug #35268: Parser can't handle STRAIGHT_JOIN with USING
 --echo #                   
--- a/mysql-test/main/join_cache.result
+++ b/mysql-test/main/join_cache.result
@ -5925,6 +5925,39 @@ SET join_buffer_space_limit= default;
 set optimizer_switch=@save_optimizer_switch;
 DROP TABLE t1,t4,t5,t2;
 #
+# MDEV-16603: BNLH for query with materialized semi-join
+#
+set join_cache_level=4;
+CREATE TABLE t1 ( i1 int, v1 varchar(1)) ENGINE=InnoDB;
+INSERT INTO t1 VALUES (7,'x');
+CREATE TABLE t2 (i1 int, v1 varchar(1), KEY v1 (v1,i1)) ENGINE=InnoDB;
+INSERT INTO t2 VALUES
+(NULL,'x'),(1,'x'),(3,'x'),(5,'x'),(8,'x'),(48,'x'),
+(228,'x'),(3,'y'),(1,'z'),(9,'z');
+CREATE TABLE temp
+SELECT t1.i1 AS f1, t1.v1 AS f2 FROM (t2 JOIN t1 ON (t1.v1 = t2.v1));
+SELECT * FROM temp
+WHERE (f1,f2) IN (SELECT t1.i1, t1.v1 FROM (t2 JOIN t1 ON (t1.v1 = t2.v1)));
+f1	f2
+7	x
+7	x
+7	x
+7	x
+7	x
+7	x
+7	x
+EXPLAIN EXTENDED SELECT * FROM temp
+WHERE (f1,f2) IN (SELECT t1.i1, t1.v1 FROM (t2 JOIN t1 ON (t1.v1 = t2.v1)));
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	1	100.00	
+1	PRIMARY	temp	hash_ALL	NULL	#hash#$hj	9	test.t1.i1,test.t1.v1	7	100.00	Using where; Using join buffer (flat, BNLH join)
+2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	1	100.00	Using where
+2	MATERIALIZED	t2	hash_index	v1	#hash#v1:v1	4:9	test.t1.v1	10	10.00	Using index; Using join buffer (flat, BNLH join)
+Warnings:
+Note	1003	select `test`.`temp`.`f1` AS `f1`,`test`.`temp`.`f2` AS `f2` from `test`.`temp` semi join (`test`.`t2` join `test`.`t1`) where `test`.`temp`.`f1` = `test`.`t1`.`i1` and `test`.`t2`.`v1` = `test`.`t1`.`v1` and `test`.`temp`.`f2` = `test`.`t1`.`v1`
+DROP TABLE t1,t2,temp;
+SET join_cache_level = default;
+#
 # MDEV-5123 Remove duplicated conditions pushed both to join_tab->select_cond and join_tab->cache_select->cond for blocked joins.
 #
 set join_cache_level=default;
--- a/mysql-test/main/join_cache.test
+++ b/mysql-test/main/join_cache.test
@ -3869,6 +3869,37 @@ set optimizer_switch=@save_optimizer_switch;

 DROP TABLE t1,t4,t5,t2;

+--echo #
+--echo # MDEV-16603: BNLH for query with materialized semi-join
+--echo #
+
+--source include/have_innodb.inc
+
+set join_cache_level=4;
+
+CREATE TABLE t1 ( i1 int, v1 varchar(1)) ENGINE=InnoDB;
+INSERT INTO t1 VALUES (7,'x');
+
+CREATE TABLE t2 (i1 int, v1 varchar(1), KEY v1 (v1,i1)) ENGINE=InnoDB;
+
+INSERT INTO t2 VALUES
+ (NULL,'x'),(1,'x'),(3,'x'),(5,'x'),(8,'x'),(48,'x'),
+ (228,'x'),(3,'y'),(1,'z'),(9,'z');
+
+CREATE TABLE temp
+SELECT t1.i1 AS f1, t1.v1 AS f2 FROM (t2 JOIN t1 ON (t1.v1 = t2.v1));
+
+let $q =
+SELECT * FROM temp
+WHERE (f1,f2) IN (SELECT t1.i1, t1.v1 FROM (t2 JOIN t1 ON (t1.v1 = t2.v1)));
+
+eval $q;
+eval EXPLAIN EXTENDED $q;
+
+DROP TABLE t1,t2,temp;
+
+SET join_cache_level = default;
+
 --echo #
 --echo # MDEV-5123 Remove duplicated conditions pushed both to join_tab->select_cond and join_tab->cache_select->cond for blocked joins.
 --echo #
@ -3958,5 +3989,4 @@ drop table t1, t2;
 set join_buffer_size = default;

 # The following command must be the last one the file 
-# this must be the last command in the file
 set @@optimizer_switch=@save_optimizer_switch;
--- a/mysql-test/main/join_outer.result
+++ b/mysql-test/main/join_outer.result
@ -2460,5 +2460,55 @@ id	sid	id
 1	NULL	NULL
 2	NULL	NULL
 drop table t1, t2;
+#
+# MDEV-16726: SELECT with STRAGHT JOIN containing NESTED RIGHT JOIN
+#             converted to INNER JOIN with first constant inner table
+#
+CREATE TABLE t1 (
+pk int PRIMARY KEY, i1 int, v1 varchar(1), v2 varchar(1), KEY v1 (v1,i1)
+) engine=MyISAM;
+INSERT INTO t1 VALUES
+(8,3,'c','c'),(9,4,'z','z'),(10,3,'i','i'),(11,186,'x','x'),
+(14,226,'m','m'),(15,133,'p','p');
+CREATE TABLE t2 (
+pk int PRIMARY KEY, i1 int, v1 varchar(1), v2 varchar(1)
+) engine=MyISAM;
+INSERT INTO t2 VALUES (10,6,'p','p');
+EXPLAIN EXTENDED
+SELECT STRAIGHT_JOIN t2.v2
+FROM
+(t1 as tb1 LEFT JOIN t1 AS tb2 ON tb2.v1 = tb1.v2)
+RIGHT JOIN
+(t2,t1)
+ON t1.pk = t2.pk AND t2.v2 = tb1.v1
+WHERE tb1.pk = 40
+ORDER BY tb1.i1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+Warnings:
+Note	1003	select straight_join 'p' AS `v2` from `test`.`t1` join `test`.`t1` `tb1` left join `test`.`t1` `tb2` on(multiple equal(NULL, NULL)) where 0 order by NULL
+EXPLAIN EXTENDED
+SELECT STRAIGHT_JOIN t2.v2
+FROM
+(t2,t1)
+LEFT JOIN
+(t1 as tb1 LEFT JOIN t1 AS tb2 ON tb2.v1 = tb1.v2)
+ON t1.pk = t2.pk AND t2.v2 = tb1.v1
+WHERE tb1.pk = 40
+ORDER BY tb1.i1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+Warnings:
+Note	1003	select straight_join 'p' AS `v2` from `test`.`t1` join `test`.`t1` `tb1` left join `test`.`t1` `tb2` on(multiple equal(NULL, NULL)) where 0 order by NULL
+SELECT STRAIGHT_JOIN DISTINCT t2.v2
+FROM
+(t1 as tb1 LEFT JOIN t1 AS tb2 ON tb2.v1 = tb1.v2)
+RIGHT JOIN
+(t2,t1)
+ON t1.pk = t2.pk AND t2.v2 = tb1.v1
+WHERE tb1.pk = 40
+ORDER BY tb1.i1;
+v2
+DROP TABLE t1,t2;
 # end of 5.5 tests
 SET optimizer_switch=@save_optimizer_switch;
--- a/mysql-test/main/join_outer.test
+++ b/mysql-test/main/join_outer.test
@ -1992,6 +1992,54 @@ select * from t1 t
 on t.id=r.id ;
 drop table t1, t2;

+--echo #
+--echo # MDEV-16726: SELECT with STRAGHT JOIN containing NESTED RIGHT JOIN
+--echo #             converted to INNER JOIN with first constant inner table
+--echo #
+
+CREATE TABLE t1 (
+  pk int PRIMARY KEY, i1 int, v1 varchar(1), v2 varchar(1), KEY v1 (v1,i1)
+) engine=MyISAM;
+INSERT INTO t1 VALUES
+  (8,3,'c','c'),(9,4,'z','z'),(10,3,'i','i'),(11,186,'x','x'),
+  (14,226,'m','m'),(15,133,'p','p');
+
+CREATE TABLE t2 (
+  pk int PRIMARY KEY, i1 int, v1 varchar(1), v2 varchar(1)
+) engine=MyISAM;
+INSERT INTO t2 VALUES (10,6,'p','p');
+
+EXPLAIN EXTENDED
+SELECT STRAIGHT_JOIN t2.v2
+FROM
+  (t1 as tb1 LEFT JOIN t1 AS tb2 ON tb2.v1 = tb1.v2)
+  RIGHT JOIN
+  (t2,t1)
+  ON t1.pk = t2.pk AND t2.v2 = tb1.v1
+WHERE tb1.pk = 40
+ORDER BY tb1.i1;
+
+EXPLAIN EXTENDED
+SELECT STRAIGHT_JOIN t2.v2
+FROM
+    (t2,t1)
+    LEFT JOIN
+    (t1 as tb1 LEFT JOIN t1 AS tb2 ON tb2.v1 = tb1.v2)
+   ON t1.pk = t2.pk AND t2.v2 = tb1.v1
+WHERE tb1.pk = 40
+ORDER BY tb1.i1;
+
+SELECT STRAIGHT_JOIN DISTINCT t2.v2
+FROM
+  (t1 as tb1 LEFT JOIN t1 AS tb2 ON tb2.v1 = tb1.v2)
+  RIGHT JOIN
+  (t2,t1)
+  ON t1.pk = t2.pk AND t2.v2 = tb1.v1
+WHERE tb1.pk = 40
+ORDER BY tb1.i1;
+
+DROP TABLE t1,t2;
+
 --echo # end of 5.5 tests

 SET optimizer_switch=@save_optimizer_switch;
--- a/mysql-test/main/join_outer_jcl6.result
+++ b/mysql-test/main/join_outer_jcl6.result
@ -2471,6 +2471,56 @@ id	sid	id
 1	NULL	NULL
 2	NULL	NULL
 drop table t1, t2;
+#
+# MDEV-16726: SELECT with STRAGHT JOIN containing NESTED RIGHT JOIN
+#             converted to INNER JOIN with first constant inner table
+#
+CREATE TABLE t1 (
+pk int PRIMARY KEY, i1 int, v1 varchar(1), v2 varchar(1), KEY v1 (v1,i1)
+) engine=MyISAM;
+INSERT INTO t1 VALUES
+(8,3,'c','c'),(9,4,'z','z'),(10,3,'i','i'),(11,186,'x','x'),
+(14,226,'m','m'),(15,133,'p','p');
+CREATE TABLE t2 (
+pk int PRIMARY KEY, i1 int, v1 varchar(1), v2 varchar(1)
+) engine=MyISAM;
+INSERT INTO t2 VALUES (10,6,'p','p');
+EXPLAIN EXTENDED
+SELECT STRAIGHT_JOIN t2.v2
+FROM
+(t1 as tb1 LEFT JOIN t1 AS tb2 ON tb2.v1 = tb1.v2)
+RIGHT JOIN
+(t2,t1)
+ON t1.pk = t2.pk AND t2.v2 = tb1.v1
+WHERE tb1.pk = 40
+ORDER BY tb1.i1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+Warnings:
+Note	1003	select straight_join 'p' AS `v2` from `test`.`t1` join `test`.`t1` `tb1` left join `test`.`t1` `tb2` on(multiple equal(NULL, NULL)) where 0 order by NULL
+EXPLAIN EXTENDED
+SELECT STRAIGHT_JOIN t2.v2
+FROM
+(t2,t1)
+LEFT JOIN
+(t1 as tb1 LEFT JOIN t1 AS tb2 ON tb2.v1 = tb1.v2)
+ON t1.pk = t2.pk AND t2.v2 = tb1.v1
+WHERE tb1.pk = 40
+ORDER BY tb1.i1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+Warnings:
+Note	1003	select straight_join 'p' AS `v2` from `test`.`t1` join `test`.`t1` `tb1` left join `test`.`t1` `tb2` on(multiple equal(NULL, NULL)) where 0 order by NULL
+SELECT STRAIGHT_JOIN DISTINCT t2.v2
+FROM
+(t1 as tb1 LEFT JOIN t1 AS tb2 ON tb2.v1 = tb1.v2)
+RIGHT JOIN
+(t2,t1)
+ON t1.pk = t2.pk AND t2.v2 = tb1.v1
+WHERE tb1.pk = 40
+ORDER BY tb1.i1;
+v2
+DROP TABLE t1,t2;
 # end of 5.5 tests
 SET optimizer_switch=@save_optimizer_switch;
 set join_cache_level=default;
--- a/mysql-test/main/rename.result
+++ b/mysql-test/main/rename.result
@ -144,3 +144,7 @@ select * from t2;
 a
 1
 drop table tmp,t2;
+create table t1 (a int) engine=memory;
+rename table t1 to non_existent.t2;
+ERROR 42000: Unknown database 'non_existent'
+drop table t1;
--- a/mysql-test/main/rename.test
+++ b/mysql-test/main/rename.test
@ -141,3 +141,10 @@ select * from tmp;
 select * from t2;
 drop table tmp,t2;

+#
+# MDEV-11741 handler::ha_reset(): Assertion `bitmap_is_set_all(&table->s->all_set)' failed or server crash in mi_reset or buffer overrun or unexpected ER_CANT_REMOVE_ALL_FIELDS
+#
+create table t1 (a int) engine=memory;
+--error ER_BAD_DB_ERROR
+rename table t1 to non_existent.t2;
+drop table t1;
--- a/mysql-test/main/session_tracker_last_gtid.result
+++ b/mysql-test/main/session_tracker_last_gtid.result
@ -2,7 +2,13 @@
 # MDEV-15477: SESSION_SYSVARS_TRACKER does not track last_gtid
 #
 SET gtid_seq_no=1000;
+-- Tracker : SESSION_TRACK_SCHEMA
+-- test
+
 SET @@session.session_track_system_variables='last_gtid';
+-- Tracker : SESSION_TRACK_SCHEMA
+-- test
+
 create table t1 (a int) engine=innodb;
 -- Tracker : SESSION_TRACK_SYSTEM_VARIABLES
 -- last_gtid
--- a/mysql-test/main/sp_notembedded.result
+++ b/mysql-test/main/sp_notembedded.result
@ -228,8 +228,6 @@ FLUSH PRIVILEGES;
 connect  con1, localhost, mysqltest_1,,;
 connection con1;
 CREATE PROCEDURE p1(i INT) BEGIN END;
-Warnings:
-Warning	1404	Failed to grant EXECUTE and ALTER ROUTINE privileges
 disconnect con1;
 connection default;
 DROP PROCEDURE p1;
--- a/mysql-test/main/stat_tables.result
+++ b/mysql-test/main/stat_tables.result
@ -516,4 +516,133 @@ use test;
 drop database db1;
 drop database db2;
 drop table t1;
+#
+# MDEV-16552: [10.0] ASAN global-buffer-overflow in is_stat_table / statistics_for_tables_is_needed
+#
+SET use_stat_tables = PREFERABLY;
+SELECT CONVERT_TZ( '1991-09-20 10:11:02', '+00:00', 'GMT' );
+CONVERT_TZ( '1991-09-20 10:11:02', '+00:00', 'GMT' )
+NULL
+set use_stat_tables=@save_use_stat_tables;
+#
+# MDEV-16757: manual addition of min/max statistics for BLOB
+#
+SET use_stat_tables= PREFERABLY;
+CREATE TABLE t1 (pk INT PRIMARY KEY, t TEXT);
+INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
+ANALYZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	Warning	Engine-independent statistics are not collected for column 't'
+test.t1	analyze	status	OK
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	pk	1	2	0.0000	4.0000	1.0000	0	NULL	NULL
+DELETE FROM mysql.column_stats
+WHERE db_name='test' AND table_name='t1' AND column_name='t';
+INSERT INTO mysql.column_stats VALUES
+('test','t1','t','bar','foo', 0.0, 3.0, 1.0, 0, NULL, NULL);
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	pk	1	2	0.0000	4.0000	1.0000	0	NULL	NULL
+test	t1	t	bar	foo	0.0000	3.0000	1.0000	0	NULL	NULL
+SELECT pk FROM t1;
+pk
+1
+2
+DROP TABLE t1;
+set use_stat_tables=@save_use_stat_tables;
+#
+# MDEV-16760: CREATE OR REPLACE TABLE after ANALYZE TABLE
+#
+SET use_stat_tables= PREFERABLY;
+CREATE TABLE t1 (pk int PRIMARY KEY, c varchar(32));
+INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
+ANALYZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+SELECT * FROM t1;
+pk	c
+1	foo
+2	bar
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	pk	1	2	0.0000	4.0000	1.0000	0	NULL	NULL
+test	t1	c	bar	foo	0.0000	3.0000	1.0000	0	NULL	NULL
+CREATE OR REPLACE TABLE t1 (pk int PRIMARY KEY, a char(7));
+SELECT * FROM t1;
+pk	a
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+DROP TABLE t1;
+set use_stat_tables=@save_use_stat_tables;
+#
+# MDEV-16757: manual addition of min/max statistics for BLOB
+#
+SET use_stat_tables= PREFERABLY;
+CREATE TABLE t1 (pk INT PRIMARY KEY, t TEXT);
+INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
+ANALYZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	Warning	Engine-independent statistics are not collected for column 't'
+test.t1	analyze	status	OK
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	pk	1	2	0.0000	4.0000	1.0000	0	NULL	NULL
+DELETE FROM mysql.column_stats
+WHERE db_name='test' AND table_name='t1' AND column_name='t';
+INSERT INTO mysql.column_stats VALUES
+('test','t1','t','bar','foo', 0.0, 3.0, 1.0, 0, NULL, NULL);
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	pk	1	2	0.0000	4.0000	1.0000	0	NULL	NULL
+test	t1	t	bar	foo	0.0000	3.0000	1.0000	0	NULL	NULL
+SELECT pk FROM t1;
+pk
+1
+2
+DROP TABLE t1;
+set use_stat_tables=@save_use_stat_tables;
+#
+# MDEV-16760: CREATE OR REPLACE TABLE after ANALYZE TABLE
+#
+SET use_stat_tables= PREFERABLY;
+CREATE TABLE t1 (pk int PRIMARY KEY, c varchar(32));
+INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
+ANALYZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+SELECT * FROM t1;
+pk	c
+1	foo
+2	bar
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	pk	1	2	0.0000	4.0000	1.0000	0	NULL	NULL
+test	t1	c	bar	foo	0.0000	3.0000	1.0000	0	NULL	NULL
+CREATE OR REPLACE TABLE t1 (pk int PRIMARY KEY, a char(7));
+SELECT * FROM t1;
+pk	a
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+DROP TABLE t1;
+set use_stat_tables=@save_use_stat_tables;
+#
+# MDEV-16711:CREATE OR REPLACE TABLE introducing BLOB column
+#
+SET use_stat_tables= PREFERABLY;
+CREATE TABLE t1 (pk INT PRIMARY KEY, t CHAR(60));
+INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
+ANALYZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+CREATE OR REPLACE TABLE t1 (pk INT PRIMARY KEY, t TEXT);
+SELECT MAX(pk) FROM t1;
+MAX(pk)
+NULL
+DROP TABLE t1;
 set use_stat_tables=@save_use_stat_tables;
--- a/mysql-test/main/stat_tables.test
+++ b/mysql-test/main/stat_tables.test
@ -305,4 +305,116 @@ drop database db1;
 drop database db2;
 drop table t1;

+--echo #
+--echo # MDEV-16552: [10.0] ASAN global-buffer-overflow in is_stat_table / statistics_for_tables_is_needed
+--echo #
+
+SET use_stat_tables = PREFERABLY;
+SELECT CONVERT_TZ( '1991-09-20 10:11:02', '+00:00', 'GMT' );
+set use_stat_tables=@save_use_stat_tables;
+
+--echo #
+--echo # MDEV-16757: manual addition of min/max statistics for BLOB
+--echo #
+
+SET use_stat_tables= PREFERABLY;
+
+CREATE TABLE t1 (pk INT PRIMARY KEY, t TEXT);
+INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
+ANALYZE TABLE t1;
+--sorted_result
+SELECT * FROM mysql.column_stats;
+DELETE FROM mysql.column_stats
+  WHERE db_name='test' AND table_name='t1' AND column_name='t';
+INSERT INTO mysql.column_stats VALUES
+  ('test','t1','t','bar','foo', 0.0, 3.0, 1.0, 0, NULL, NULL);
+--sorted_result
+SELECT * FROM mysql.column_stats;
+
+SELECT pk FROM t1;
+
+DROP TABLE t1;
+
+set use_stat_tables=@save_use_stat_tables;
+
+--echo #
+--echo # MDEV-16760: CREATE OR REPLACE TABLE after ANALYZE TABLE
+--echo #
+
+SET use_stat_tables= PREFERABLY;
+
+CREATE TABLE t1 (pk int PRIMARY KEY, c varchar(32));
+INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
+ANALYZE TABLE t1;
+SELECT * FROM t1;
+SELECT * FROM mysql.column_stats;
+
+CREATE OR REPLACE TABLE t1 (pk int PRIMARY KEY, a char(7));
+SELECT * FROM t1;
+SELECT * FROM mysql.column_stats;
+
+DROP TABLE t1;
+
+set use_stat_tables=@save_use_stat_tables;
+
+--echo #
+--echo # MDEV-16757: manual addition of min/max statistics for BLOB
+--echo #
+
+SET use_stat_tables= PREFERABLY;
+
+CREATE TABLE t1 (pk INT PRIMARY KEY, t TEXT);
+INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
+ANALYZE TABLE t1;
+--sorted_result
+SELECT * FROM mysql.column_stats;
+DELETE FROM mysql.column_stats
+  WHERE db_name='test' AND table_name='t1' AND column_name='t';
+INSERT INTO mysql.column_stats VALUES
+  ('test','t1','t','bar','foo', 0.0, 3.0, 1.0, 0, NULL, NULL);
+--sorted_result
+SELECT * FROM mysql.column_stats;
+
+SELECT pk FROM t1;
+
+DROP TABLE t1;
+
+set use_stat_tables=@save_use_stat_tables;
+
+--echo #
+--echo # MDEV-16760: CREATE OR REPLACE TABLE after ANALYZE TABLE
+--echo #
+
+SET use_stat_tables= PREFERABLY;
+
+CREATE TABLE t1 (pk int PRIMARY KEY, c varchar(32));
+INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
+ANALYZE TABLE t1;
+SELECT * FROM t1;
+SELECT * FROM mysql.column_stats;
+
+CREATE OR REPLACE TABLE t1 (pk int PRIMARY KEY, a char(7));
+SELECT * FROM t1;
+SELECT * FROM mysql.column_stats;
+
+DROP TABLE t1;
+
+set use_stat_tables=@save_use_stat_tables;
+
+
+--echo #
+--echo # MDEV-16711:CREATE OR REPLACE TABLE introducing BLOB column
+--echo #
+
+SET use_stat_tables= PREFERABLY;
+
+CREATE TABLE t1 (pk INT PRIMARY KEY, t CHAR(60));
+INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
+ANALYZE TABLE t1;
+CREATE OR REPLACE TABLE t1 (pk INT PRIMARY KEY, t TEXT);
+
+SELECT MAX(pk) FROM t1;
+
+DROP TABLE t1;
+
 set use_stat_tables=@save_use_stat_tables;
--- a/mysql-test/main/stat_tables_innodb.result
+++ b/mysql-test/main/stat_tables_innodb.result
@ -543,6 +543,135 @@ use test;
 drop database db1;
 drop database db2;
 drop table t1;
+#
+# MDEV-16552: [10.0] ASAN global-buffer-overflow in is_stat_table / statistics_for_tables_is_needed
+#
+SET use_stat_tables = PREFERABLY;
+SELECT CONVERT_TZ( '1991-09-20 10:11:02', '+00:00', 'GMT' );
+CONVERT_TZ( '1991-09-20 10:11:02', '+00:00', 'GMT' )
+NULL
+set use_stat_tables=@save_use_stat_tables;
+#
+# MDEV-16757: manual addition of min/max statistics for BLOB
+#
+SET use_stat_tables= PREFERABLY;
+CREATE TABLE t1 (pk INT PRIMARY KEY, t TEXT);
+INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
+ANALYZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	Warning	Engine-independent statistics are not collected for column 't'
+test.t1	analyze	status	OK
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	pk	1	2	0.0000	4.0000	1.0000	0	NULL	NULL
+DELETE FROM mysql.column_stats
+WHERE db_name='test' AND table_name='t1' AND column_name='t';
+INSERT INTO mysql.column_stats VALUES
+('test','t1','t','bar','foo', 0.0, 3.0, 1.0, 0, NULL, NULL);
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	pk	1	2	0.0000	4.0000	1.0000	0	NULL	NULL
+test	t1	t	bar	foo	0.0000	3.0000	1.0000	0	NULL	NULL
+SELECT pk FROM t1;
+pk
+1
+2
+DROP TABLE t1;
+set use_stat_tables=@save_use_stat_tables;
+#
+# MDEV-16760: CREATE OR REPLACE TABLE after ANALYZE TABLE
+#
+SET use_stat_tables= PREFERABLY;
+CREATE TABLE t1 (pk int PRIMARY KEY, c varchar(32));
+INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
+ANALYZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+SELECT * FROM t1;
+pk	c
+1	foo
+2	bar
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	pk	1	2	0.0000	4.0000	1.0000	0	NULL	NULL
+test	t1	c	bar	foo	0.0000	3.0000	1.0000	0	NULL	NULL
+CREATE OR REPLACE TABLE t1 (pk int PRIMARY KEY, a char(7));
+SELECT * FROM t1;
+pk	a
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+DROP TABLE t1;
+set use_stat_tables=@save_use_stat_tables;
+#
+# MDEV-16757: manual addition of min/max statistics for BLOB
+#
+SET use_stat_tables= PREFERABLY;
+CREATE TABLE t1 (pk INT PRIMARY KEY, t TEXT);
+INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
+ANALYZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	Warning	Engine-independent statistics are not collected for column 't'
+test.t1	analyze	status	OK
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	pk	1	2	0.0000	4.0000	1.0000	0	NULL	NULL
+DELETE FROM mysql.column_stats
+WHERE db_name='test' AND table_name='t1' AND column_name='t';
+INSERT INTO mysql.column_stats VALUES
+('test','t1','t','bar','foo', 0.0, 3.0, 1.0, 0, NULL, NULL);
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	pk	1	2	0.0000	4.0000	1.0000	0	NULL	NULL
+test	t1	t	bar	foo	0.0000	3.0000	1.0000	0	NULL	NULL
+SELECT pk FROM t1;
+pk
+1
+2
+DROP TABLE t1;
+set use_stat_tables=@save_use_stat_tables;
+#
+# MDEV-16760: CREATE OR REPLACE TABLE after ANALYZE TABLE
+#
+SET use_stat_tables= PREFERABLY;
+CREATE TABLE t1 (pk int PRIMARY KEY, c varchar(32));
+INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
+ANALYZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+SELECT * FROM t1;
+pk	c
+1	foo
+2	bar
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	pk	1	2	0.0000	4.0000	1.0000	0	NULL	NULL
+test	t1	c	bar	foo	0.0000	3.0000	1.0000	0	NULL	NULL
+CREATE OR REPLACE TABLE t1 (pk int PRIMARY KEY, a char(7));
+SELECT * FROM t1;
+pk	a
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+DROP TABLE t1;
+set use_stat_tables=@save_use_stat_tables;
+#
+# MDEV-16711:CREATE OR REPLACE TABLE introducing BLOB column
+#
+SET use_stat_tables= PREFERABLY;
+CREATE TABLE t1 (pk INT PRIMARY KEY, t CHAR(60));
+INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
+ANALYZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+CREATE OR REPLACE TABLE t1 (pk INT PRIMARY KEY, t TEXT);
+SELECT MAX(pk) FROM t1;
+MAX(pk)
+NULL
+DROP TABLE t1;
 set use_stat_tables=@save_use_stat_tables;
 set optimizer_switch=@save_optimizer_switch_for_stat_tables_test;
 SET SESSION STORAGE_ENGINE=DEFAULT;
--- a/mysql-test/main/subselect.result
+++ b/mysql-test/main/subselect.result
@ -7237,6 +7237,22 @@ a
 5
 SET @@optimizer_switch= @optimiser_switch_save;
 DROP TABLE t1, t2, t3;
+#
+# MDEV-16820: impossible where with inexpensive subquery
+#
+create table t1 (a int) engine=myisam;
+insert into t1 values (3), (1), (7);
+create table t2 (b int, index idx(b));
+insert into t2 values (2), (5), (3), (2);
+explain select * from t1 where (select max(b) from t2) = 10;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+explain select * from t1 where (select max(b) from t2) = 10 and t1.a > 3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+drop table t1,t2;
 End of 5.5 tests
 # End of 10.0 tests
 #
--- a/mysql-test/main/subselect.test
+++ b/mysql-test/main/subselect.test
@ -6098,6 +6098,21 @@ and t1.a in (select `test`.`t3`.`c` from `test`.`t3`);
 SET @@optimizer_switch= @optimiser_switch_save;
 DROP TABLE t1, t2, t3;

+--echo #
+--echo # MDEV-16820: impossible where with inexpensive subquery
+--echo #
+
+create table t1 (a int) engine=myisam;
+insert into t1 values (3), (1), (7);
+
+create table t2 (b int, index idx(b));
+insert into t2 values (2), (5), (3), (2);
+
+explain select * from t1 where (select max(b) from t2) = 10;
+explain select * from t1 where (select max(b) from t2) = 10 and t1.a > 3;
+
+drop table t1,t2;
+
 --echo End of 5.5 tests
 --echo # End of 10.0 tests

--- a/mysql-test/main/subselect_mat.result
+++ b/mysql-test/main/subselect_mat.result
@ -2391,6 +2391,99 @@ ec70316637232000158bbfc8bcbe5d60
 ebb4620037332000158bbfc8bcbe5d89
 DROP TABLE t1,t2,t3;
 set optimizer_switch=@save_optimizer_switch;
+#
+# MDEV-16751: Server crashes in st_join_table::cleanup or 
+# TABLE_LIST::is_with_table_recursive_reference with join_cache_level>2
+#
+set @save_join_cache_level= @@join_cache_level;
+set join_cache_level=4;
+CREATE TABLE t1 ( id int NOT NULL);
+INSERT INTO t1 VALUES (11),(12),(13),(14),(15),(16),(17),(18),(19);
+CREATE TABLE t2 (i1 int NOT NULL, i2 int NOT NULL) ;
+INSERT INTO t2 VALUES  (11,11),(12,12),(13,13);
+explain
+SELECT 1 FROM t1 where t1.id IN (SELECT t2.i1 FROM t2 WHERE t2.i1 = t2.i2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	3	
+1	PRIMARY	t1	hash_ALL	NULL	#hash#$hj	4	test.t2.i1	9	Using where; Using join buffer (flat, BNLH join)
+2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	Using where
+SELECT 1 FROM t1 where t1.id IN (SELECT t2.i1 FROM t2 WHERE t2.i1 = t2.i2);
+1
+1
+1
+1
+set @@join_cache_level= @save_join_cache_level;
+alter table t1 add key(id);
+explain
+SELECT 1 FROM t1 where t1.id IN (SELECT t2.i1 FROM t2 WHERE t2.i1 = t2.i2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	3	
+1	PRIMARY	t1	ref	id	id	4	test.t2.i1	2	Using index
+2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	Using where
+SELECT 1 FROM t1 where t1.id IN (SELECT t2.i1 FROM t2 WHERE t2.i1 = t2.i2);
+1
+1
+1
+1
+drop table t1,t2;
+#
+# MDEV-15454: Nested SELECT IN returns wrong results
+#
+CREATE TABLE t1 ( a int NOT NULL PRIMARY KEY);
+CREATE TABLE t2 ( a int, b int );
+INSERT INTO t2  VALUES (7878, 96),(3465, 96),(1403, 96),(4189, 96),(8732, 96), (5,96);
+CREATE TABLE t3 (c int unsigned NOT NULL, b int unsigned NOT NULL, PRIMARY KEY (c,b));
+INSERT INTO t3 (c, b) VALUES (27, 96);
+CREATE PROCEDURE prepare_data()
+BEGIN
+DECLARE i INT DEFAULT 1;
+WHILE i < 1000 DO
+INSERT INTO t1 (a) VALUES (i);
+INSERT INTO t2 (a,b) VALUES (i,56);
+INSERT INTO t3 (c,b) VALUES (i,i);
+SET i = i + 1;
+END WHILE;
+END$$
+CALL prepare_data();
+SELECT t2.a FROM t2 WHERE t2.b IN (SELECT t3.b FROM t3 WHERE t3.c= 27);
+a
+7878
+3465
+1403
+4189
+8732
+5
+set @save_optimizer_switch= @@optimizer_switch;
+SET optimizer_switch='materialization=off';
+SELECT t1.a FROM t1
+WHERE t1.a IN (SELECT t2.a FROM t2 WHERE t2.b IN (SELECT t3.b FROM t3 WHERE t3.c= 27)) LIMIT 5;
+a
+5
+SET optimizer_switch='materialization=on';
+SELECT t1.a FROM t1
+WHERE t1.a IN (SELECT t2.a FROM t2 WHERE t2.b IN (SELECT t3.b FROM t3 WHERE t3.c= 27)) LIMIT 5;
+a
+5
+drop procedure prepare_data;
+set @@optimizer_switch= @save_optimizer_switch;
+drop table t1,t2,t3;
+CREATE TABLE t1 ( id int NOT NULL, key(id));
+INSERT INTO t1 VALUES (11),(12),(13),(14),(15),(16),(17),(18),(19);
+CREATE TABLE t2 (i1 int NOT NULL, i2 int NOT NULL);
+INSERT INTO t2 VALUES  (11,11),(12,12),(13,13);
+CREATE VIEW v1 AS SELECT t2.i1 FROM t2 where t2.i1 = t2.i2;
+explain SELECT 1 FROM t1 where t1.id IN (SELECT v1.i1 from v1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	3	
+1	PRIMARY	t1	ref	id	id	4	test.t2.i1	2	Using index
+2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	Using where
+SELECT 1 FROM t1 where t1.id IN (SELECT v1.i1 from v1);
+1
+1
+1
+1
+drop table t1,t2;
+drop view v1;
 # End of 5.5 tests
 #
 # MDEV-7220: Materialization strategy is not used for REPLACE ... SELECT
--- a/mysql-test/main/subselect_mat_cost_bugs.result
+++ b/mysql-test/main/subselect_mat_cost_bugs.result
@ -442,7 +442,7 @@ SELECT i2 FROM t2 RIGHT JOIN t3 ON (c3 = c2) WHERE pk3 = i1
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	NULL	NULL	NULL	NULL	1	
 2	DEPENDENT SUBQUERY	t3	const	PRIMARY	PRIMARY	4	const	1	
-2	DEPENDENT SUBQUERY	t2	index	NULL	i2	11	NULL	2	Using where; Using index
+2	DEPENDENT SUBQUERY	t2	index	i2	i2	11	NULL	2	Using where; Using index
 DROP TABLE t1,t2,t3;
 #
 # MDEV-7599: in-to-exists chosen after min/max optimization
--- a/mysql-test/main/subselect_no_exists_to_in.result
+++ b/mysql-test/main/subselect_no_exists_to_in.result
@ -7237,6 +7237,22 @@ a
 5
 SET @@optimizer_switch= @optimiser_switch_save;
 DROP TABLE t1, t2, t3;
+#
+# MDEV-16820: impossible where with inexpensive subquery
+#
+create table t1 (a int) engine=myisam;
+insert into t1 values (3), (1), (7);
+create table t2 (b int, index idx(b));
+insert into t2 values (2), (5), (3), (2);
+explain select * from t1 where (select max(b) from t2) = 10;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+explain select * from t1 where (select max(b) from t2) = 10 and t1.a > 3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+drop table t1,t2;
 End of 5.5 tests
 # End of 10.0 tests
 #
--- a/mysql-test/main/subselect_no_mat.result
+++ b/mysql-test/main/subselect_no_mat.result
@ -7230,6 +7230,22 @@ a
 5
 SET @@optimizer_switch= @optimiser_switch_save;
 DROP TABLE t1, t2, t3;
+#
+# MDEV-16820: impossible where with inexpensive subquery
+#
+create table t1 (a int) engine=myisam;
+insert into t1 values (3), (1), (7);
+create table t2 (b int, index idx(b));
+insert into t2 values (2), (5), (3), (2);
+explain select * from t1 where (select max(b) from t2) = 10;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+explain select * from t1 where (select max(b) from t2) = 10 and t1.a > 3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+drop table t1,t2;
 End of 5.5 tests
 # End of 10.0 tests
 #
--- a/mysql-test/main/subselect_no_opts.result
+++ b/mysql-test/main/subselect_no_opts.result
@ -7228,6 +7228,22 @@ a
 5
 SET @@optimizer_switch= @optimiser_switch_save;
 DROP TABLE t1, t2, t3;
+#
+# MDEV-16820: impossible where with inexpensive subquery
+#
+create table t1 (a int) engine=myisam;
+insert into t1 values (3), (1), (7);
+create table t2 (b int, index idx(b));
+insert into t2 values (2), (5), (3), (2);
+explain select * from t1 where (select max(b) from t2) = 10;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+explain select * from t1 where (select max(b) from t2) = 10 and t1.a > 3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+drop table t1,t2;
 End of 5.5 tests
 # End of 10.0 tests
 #
--- a/mysql-test/main/subselect_no_scache.result
+++ b/mysql-test/main/subselect_no_scache.result
@ -7243,6 +7243,22 @@ a
 5
 SET @@optimizer_switch= @optimiser_switch_save;
 DROP TABLE t1, t2, t3;
+#
+# MDEV-16820: impossible where with inexpensive subquery
+#
+create table t1 (a int) engine=myisam;
+insert into t1 values (3), (1), (7);
+create table t2 (b int, index idx(b));
+insert into t2 values (2), (5), (3), (2);
+explain select * from t1 where (select max(b) from t2) = 10;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+explain select * from t1 where (select max(b) from t2) = 10 and t1.a > 3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+drop table t1,t2;
 End of 5.5 tests
 # End of 10.0 tests
 #
--- a/mysql-test/main/subselect_no_semijoin.result
+++ b/mysql-test/main/subselect_no_semijoin.result
@ -7228,6 +7228,22 @@ a
 5
 SET @@optimizer_switch= @optimiser_switch_save;
 DROP TABLE t1, t2, t3;
+#
+# MDEV-16820: impossible where with inexpensive subquery
+#
+create table t1 (a int) engine=myisam;
+insert into t1 values (3), (1), (7);
+create table t2 (b int, index idx(b));
+insert into t2 values (2), (5), (3), (2);
+explain select * from t1 where (select max(b) from t2) = 10;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+explain select * from t1 where (select max(b) from t2) = 10 and t1.a > 3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+drop table t1,t2;
 End of 5.5 tests
 # End of 10.0 tests
 #
--- a/mysql-test/main/subselect_sj2_mat.result
+++ b/mysql-test/main/subselect_sj2_mat.result
@ -1728,6 +1728,57 @@ id
 13
 drop table t1;
 #
+# MDEV-15982: Incorrect results when subquery is materialized
+#
+CREATE TABLE `t1` (`id` int(32)  NOT NULL  primary key);
+INSERT INTO `t1` VALUES
+(45), (46), (47), (48), (49), (50), (51), (52), (53), (54), (55), (56), (57), (58), (59), (60), (61), (62),
+(63), (64), (65), (66), (67), (68), (69), (70), (71), (72), (73), (74), (75), (76), (77), (78), (79), (80),
+(81), (82), (83), (84), (85), (86), (87), (88), (89), (90), (91), (92),(93),(94),(95),(96), (97), (98),
+(99), (100), (101), (102), (103), (104), (105), (106), (107), (108), (109), (110), (111), (112), (113),
+(114), (115), (116), (117), (118), (119), (120), (121), (122), (123), (124), (125), (126), (127), (128),
+(129), (130), (131), (132), (133), (134), (135), (136), (137), (138), (139), (140), (141), (142), (143), (144), (145), (146),
+(147), (148), (149), (150), (151), (152), (153), (154), (155), (156), (157), (158), (159), (160), (161),
+(162), (163), (164), (165), (166), (167), (168), (169), (170), (171), (172), (173),
+(174), (175), (176), (177), (178), (179), (180), (181), (182), (183), (2), (3), (4), (5), (6), (19), (35),
+(7), (20), (8), (36), (219), (22), (10), (23), (37), (11), (24);
+CREATE TABLE `t2` (`type` int , `id` int(32) NOT NULL  primary key);
+INSERT INTO `t2` VALUES
+(2,2),(2,3),(1,4),(2,5),(1,6),(1,19),(5,7),(1,20),(1,8),(1,21),(1,9),
+(1,22),(2,10),(1,23),(2,11),(1,24),(1,12),(1,25),(2,13),(2,26),(2,14),
+(2,27),(1,15),(1,28),(3,16),(1,29),(2,17),(1,30),(5,18),(2,1);
+CREATE TABLE `t3` (`ref_id`  int(32) unsigned ,`type` varchar(80),`id` int(32) NOT NULL );
+INSERT INTO `t3` VALUES
+(1,'incident',31),(2,'faux pas',32),
+(5,'oopsies',33),(3,'deniable',34),
+(11,'wasntme',35),(10,'wasntme',36),
+(17,'faux pas',37),(13,'unlikely',38),
+(13,'improbable',39),(14,'incident',40),
+(26,'problem',41),(14,'problem',42),
+(26,'incident',43),(27,'incident',44);
+explain
+SELECT t2.id FROM t2,t1
+WHERE  t2.id IN (SELECT t3.ref_id FROM t3,t1 where t3.id = t1.id) and t2.id = t1.id;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t2	index	PRIMARY	PRIMARY	4	NULL	30	Using index
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	Using where
+1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	4	test.t2.id	1	Using index
+2	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	14	
+2	MATERIALIZED	t1	eq_ref	PRIMARY	PRIMARY	4	test.t3.id	1	Using index
+SELECT t2.id FROM t2,t1
+WHERE  t2.id IN (SELECT t3.ref_id FROM t3,t1 where t3.id = t1.id) and t2.id = t1.id;
+id
+10
+11
+set optimizer_switch='materialization=off';
+SELECT t2.id FROM t2,t1
+WHERE  t2.id IN (SELECT t3.ref_id FROM t3,t1 where t3.id = t1.id) and t2.id = t1.id;
+id
+11
+10
+set optimizer_switch='materialization=on';
+DROP TABLE t1,t2,t3;
+#
 # MDEV-15247: Crash when SET NAMES 'utf8' is set
 #
 CREATE TABLE t1 (
--- a/mysql-test/main/subselect_sj2_mat.test
+++ b/mysql-test/main/subselect_sj2_mat.test
@ -346,6 +346,55 @@ WHERE (
 );
 drop table t1;

+--echo #
+--echo # MDEV-15982: Incorrect results when subquery is materialized
+--echo #
+
+CREATE TABLE `t1` (`id` int(32)  NOT NULL  primary key);
+INSERT INTO `t1` VALUES
+(45), (46), (47), (48), (49), (50), (51), (52), (53), (54), (55), (56), (57), (58), (59), (60), (61), (62),
+(63), (64), (65), (66), (67), (68), (69), (70), (71), (72), (73), (74), (75), (76), (77), (78), (79), (80),
+(81), (82), (83), (84), (85), (86), (87), (88), (89), (90), (91), (92),(93),(94),(95),(96), (97), (98),
+(99), (100), (101), (102), (103), (104), (105), (106), (107), (108), (109), (110), (111), (112), (113),
+(114), (115), (116), (117), (118), (119), (120), (121), (122), (123), (124), (125), (126), (127), (128),
+(129), (130), (131), (132), (133), (134), (135), (136), (137), (138), (139), (140), (141), (142), (143), (144), (145), (146),
+(147), (148), (149), (150), (151), (152), (153), (154), (155), (156), (157), (158), (159), (160), (161),
+(162), (163), (164), (165), (166), (167), (168), (169), (170), (171), (172), (173),
+(174), (175), (176), (177), (178), (179), (180), (181), (182), (183), (2), (3), (4), (5), (6), (19), (35),
+(7), (20), (8), (36), (219), (22), (10), (23), (37), (11), (24);
+
+CREATE TABLE `t2` (`type` int , `id` int(32) NOT NULL  primary key);
+INSERT INTO `t2` VALUES
+(2,2),(2,3),(1,4),(2,5),(1,6),(1,19),(5,7),(1,20),(1,8),(1,21),(1,9),
+(1,22),(2,10),(1,23),(2,11),(1,24),(1,12),(1,25),(2,13),(2,26),(2,14),
+(2,27),(1,15),(1,28),(3,16),(1,29),(2,17),(1,30),(5,18),(2,1);
+
+CREATE TABLE `t3` (`ref_id`  int(32) unsigned ,`type` varchar(80),`id` int(32) NOT NULL );
+INSERT INTO `t3` VALUES
+(1,'incident',31),(2,'faux pas',32),
+(5,'oopsies',33),(3,'deniable',34),
+(11,'wasntme',35),(10,'wasntme',36),
+(17,'faux pas',37),(13,'unlikely',38),
+(13,'improbable',39),(14,'incident',40),
+(26,'problem',41),(14,'problem',42),
+(26,'incident',43),(27,'incident',44);
+
+explain
+SELECT t2.id FROM t2,t1
+  WHERE  t2.id IN (SELECT t3.ref_id FROM t3,t1 where t3.id = t1.id) and t2.id = t1.id;
+
+SELECT t2.id FROM t2,t1
+  WHERE  t2.id IN (SELECT t3.ref_id FROM t3,t1 where t3.id = t1.id) and t2.id = t1.id;
+
+set optimizer_switch='materialization=off';
+
+SELECT t2.id FROM t2,t1
+  WHERE  t2.id IN (SELECT t3.ref_id FROM t3,t1 where t3.id = t1.id) and t2.id = t1.id;
+set optimizer_switch='materialization=on';
+
+DROP TABLE t1,t2,t3;
+
+
 --echo #
 --echo # MDEV-15247: Crash when SET NAMES 'utf8' is set
 --echo #
--- a/mysql-test/main/subselect_sj_mat.result
+++ b/mysql-test/main/subselect_sj_mat.result
@ -2431,6 +2431,99 @@ ec70316637232000158bbfc8bcbe5d60
 ebb4620037332000158bbfc8bcbe5d89
 DROP TABLE t1,t2,t3;
 set optimizer_switch=@save_optimizer_switch;
+#
+# MDEV-16751: Server crashes in st_join_table::cleanup or 
+# TABLE_LIST::is_with_table_recursive_reference with join_cache_level>2
+#
+set @save_join_cache_level= @@join_cache_level;
+set join_cache_level=4;
+CREATE TABLE t1 ( id int NOT NULL);
+INSERT INTO t1 VALUES (11),(12),(13),(14),(15),(16),(17),(18),(19);
+CREATE TABLE t2 (i1 int NOT NULL, i2 int NOT NULL) ;
+INSERT INTO t2 VALUES  (11,11),(12,12),(13,13);
+explain
+SELECT 1 FROM t1 where t1.id IN (SELECT t2.i1 FROM t2 WHERE t2.i1 = t2.i2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	3	
+1	PRIMARY	t1	hash_ALL	NULL	#hash#$hj	4	test.t2.i1	9	Using where; Using join buffer (flat, BNLH join)
+2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	Using where
+SELECT 1 FROM t1 where t1.id IN (SELECT t2.i1 FROM t2 WHERE t2.i1 = t2.i2);
+1
+1
+1
+1
+set @@join_cache_level= @save_join_cache_level;
+alter table t1 add key(id);
+explain
+SELECT 1 FROM t1 where t1.id IN (SELECT t2.i1 FROM t2 WHERE t2.i1 = t2.i2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	3	
+1	PRIMARY	t1	ref	id	id	4	test.t2.i1	2	Using index
+2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	Using where
+SELECT 1 FROM t1 where t1.id IN (SELECT t2.i1 FROM t2 WHERE t2.i1 = t2.i2);
+1
+1
+1
+1
+drop table t1,t2;
+#
+# MDEV-15454: Nested SELECT IN returns wrong results
+#
+CREATE TABLE t1 ( a int NOT NULL PRIMARY KEY);
+CREATE TABLE t2 ( a int, b int );
+INSERT INTO t2  VALUES (7878, 96),(3465, 96),(1403, 96),(4189, 96),(8732, 96), (5,96);
+CREATE TABLE t3 (c int unsigned NOT NULL, b int unsigned NOT NULL, PRIMARY KEY (c,b));
+INSERT INTO t3 (c, b) VALUES (27, 96);
+CREATE PROCEDURE prepare_data()
+BEGIN
+DECLARE i INT DEFAULT 1;
+WHILE i < 1000 DO
+INSERT INTO t1 (a) VALUES (i);
+INSERT INTO t2 (a,b) VALUES (i,56);
+INSERT INTO t3 (c,b) VALUES (i,i);
+SET i = i + 1;
+END WHILE;
+END$$
+CALL prepare_data();
+SELECT t2.a FROM t2 WHERE t2.b IN (SELECT t3.b FROM t3 WHERE t3.c= 27);
+a
+7878
+3465
+1403
+4189
+8732
+5
+set @save_optimizer_switch= @@optimizer_switch;
+SET optimizer_switch='materialization=off';
+SELECT t1.a FROM t1
+WHERE t1.a IN (SELECT t2.a FROM t2 WHERE t2.b IN (SELECT t3.b FROM t3 WHERE t3.c= 27)) LIMIT 5;
+a
+5
+SET optimizer_switch='materialization=on';
+SELECT t1.a FROM t1
+WHERE t1.a IN (SELECT t2.a FROM t2 WHERE t2.b IN (SELECT t3.b FROM t3 WHERE t3.c= 27)) LIMIT 5;
+a
+5
+drop procedure prepare_data;
+set @@optimizer_switch= @save_optimizer_switch;
+drop table t1,t2,t3;
+CREATE TABLE t1 ( id int NOT NULL, key(id));
+INSERT INTO t1 VALUES (11),(12),(13),(14),(15),(16),(17),(18),(19);
+CREATE TABLE t2 (i1 int NOT NULL, i2 int NOT NULL);
+INSERT INTO t2 VALUES  (11,11),(12,12),(13,13);
+CREATE VIEW v1 AS SELECT t2.i1 FROM t2 where t2.i1 = t2.i2;
+explain SELECT 1 FROM t1 where t1.id IN (SELECT v1.i1 from v1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	3	
+1	PRIMARY	t1	ref	id	id	4	test.t2.i1	2	Using index
+2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	Using where
+SELECT 1 FROM t1 where t1.id IN (SELECT v1.i1 from v1);
+1
+1
+1
+1
+drop table t1,t2;
+drop view v1;
 # End of 5.5 tests
 #
 # MDEV-7220: Materialization strategy is not used for REPLACE ... SELECT
--- a/mysql-test/main/subselect_sj_mat.test
+++ b/mysql-test/main/subselect_sj_mat.test
@ -2157,6 +2157,85 @@ eval $q;
 DROP TABLE t1,t2,t3;
 set optimizer_switch=@save_optimizer_switch;

+--echo #
+--echo # MDEV-16751: Server crashes in st_join_table::cleanup or 
+--echo # TABLE_LIST::is_with_table_recursive_reference with join_cache_level>2
+--echo #
+
+set @save_join_cache_level= @@join_cache_level;
+set join_cache_level=4;
+CREATE TABLE t1 ( id int NOT NULL);
+INSERT INTO t1 VALUES (11),(12),(13),(14),(15),(16),(17),(18),(19);
+ 
+CREATE TABLE t2 (i1 int NOT NULL, i2 int NOT NULL) ;
+INSERT INTO t2 VALUES  (11,11),(12,12),(13,13);
+
+explain
+SELECT 1 FROM t1 where t1.id IN (SELECT t2.i1 FROM t2 WHERE t2.i1 = t2.i2);
+SELECT 1 FROM t1 where t1.id IN (SELECT t2.i1 FROM t2 WHERE t2.i1 = t2.i2);
+
+set @@join_cache_level= @save_join_cache_level;
+alter table t1 add key(id);
+
+explain
+SELECT 1 FROM t1 where t1.id IN (SELECT t2.i1 FROM t2 WHERE t2.i1 = t2.i2);
+SELECT 1 FROM t1 where t1.id IN (SELECT t2.i1 FROM t2 WHERE t2.i1 = t2.i2);
+
+drop table t1,t2;
+
+--echo #
+--echo # MDEV-15454: Nested SELECT IN returns wrong results
+--echo #
+
+CREATE TABLE t1 ( a int NOT NULL PRIMARY KEY);
+
+CREATE TABLE t2 ( a int, b int );
+INSERT INTO t2  VALUES (7878, 96),(3465, 96),(1403, 96),(4189, 96),(8732, 96), (5,96);
+
+CREATE TABLE t3 (c int unsigned NOT NULL, b int unsigned NOT NULL, PRIMARY KEY (c,b));
+INSERT INTO t3 (c, b) VALUES (27, 96);
+
+DELIMITER $$;
+CREATE PROCEDURE prepare_data()
+BEGIN
+  DECLARE i INT DEFAULT 1;
+  WHILE i < 1000 DO
+    INSERT INTO t1 (a) VALUES (i);
+    INSERT INTO t2 (a,b) VALUES (i,56);
+    INSERT INTO t3 (c,b) VALUES (i,i);
+    SET i = i + 1;
+  END WHILE;
+END$$
+DELIMITER ;$$
+
+CALL prepare_data();
+
+SELECT t2.a FROM t2 WHERE t2.b IN (SELECT t3.b FROM t3 WHERE t3.c= 27);
+
+set @save_optimizer_switch= @@optimizer_switch;
+SET optimizer_switch='materialization=off';
+
+SELECT t1.a FROM t1
+WHERE t1.a IN (SELECT t2.a FROM t2 WHERE t2.b IN (SELECT t3.b FROM t3 WHERE t3.c= 27)) LIMIT 5;
+
+SET optimizer_switch='materialization=on';
+
+SELECT t1.a FROM t1
+WHERE t1.a IN (SELECT t2.a FROM t2 WHERE t2.b IN (SELECT t3.b FROM t3 WHERE t3.c= 27)) LIMIT 5;
+
+drop procedure prepare_data;
+set @@optimizer_switch= @save_optimizer_switch;
+drop table t1,t2,t3;
+
+CREATE TABLE t1 ( id int NOT NULL, key(id));
+INSERT INTO t1 VALUES (11),(12),(13),(14),(15),(16),(17),(18),(19);
+CREATE TABLE t2 (i1 int NOT NULL, i2 int NOT NULL);
+INSERT INTO t2 VALUES  (11,11),(12,12),(13,13);
+CREATE VIEW v1 AS SELECT t2.i1 FROM t2 where t2.i1 = t2.i2;
+explain SELECT 1 FROM t1 where t1.id IN (SELECT v1.i1 from v1);
+SELECT 1 FROM t1 where t1.id IN (SELECT v1.i1 from v1);
+drop table t1,t2;
+drop view v1;
 --echo # End of 5.5 tests
 --echo #
 --echo # MDEV-7220: Materialization strategy is not used for REPLACE ... SELECT
--- a/mysql-test/main/union.result
+++ b/mysql-test/main/union.result
@ -2149,6 +2149,22 @@ DROP VIEW v1;
 UNION
 (SELECT 2, 2);
 ERROR 42S02: Table 'test.v1' doesn't exist
+#
+# Bug#27197235 USER VARIABLE + UINON + DECIMAL COLUMN RETURNS
+#              WRONG VALUES
+#
+SET NAMES utf8;
+SET @advertAcctId = 1000003;
+select @advertAcctId as a from dual union all select 1.0 from dual;
+a
+1000003.0
+1.0
+SET NAMES latin1;
+SET @advertAcctId = 1000003;
+select @advertAcctId as a from dual union all select 1.0 from dual;
+a
+1000003.0
+1.0
 End of 5.5 tests
 #
 # WL#1763 Avoid creating temporary table in UNION ALL
--- a/mysql-test/main/union.test
+++ b/mysql-test/main/union.test
@ -1480,6 +1480,21 @@ DROP VIEW v1;
 UNION
 (SELECT 2, 2);

+--echo #
+--echo # Bug#27197235 USER VARIABLE + UINON + DECIMAL COLUMN RETURNS
+--echo #              WRONG VALUES
+--echo #
+
+let $old_charset= `SELECT @@character_set_client`;
+
+SET NAMES utf8;
+SET @advertAcctId = 1000003;
+select @advertAcctId as a from dual union all select 1.0 from dual;
+
+eval SET NAMES $old_charset;
+SET @advertAcctId = 1000003;
+select @advertAcctId as a from dual union all select 1.0 from dual;
+
 --echo End of 5.5 tests

 --echo #
--- a/mysql-test/suite/binlog/include/check_binlog_size.inc
+++ b/mysql-test/suite/binlog/include/check_binlog_size.inc
@ -0,0 +1,31 @@
+# This file runs the query and checks
+# whether the size of binlog is increased or not
+# If size is changed it issue die command
+# Parameters
+# $sql_query = query to run
+
+#Only last row of show binlog events matter
+--let $tmp= 0
+--let $counter= 1
+while ($tmp != "No such row")
+{
+  --let $initial_binlog_size= $tmp
+  --let $tmp= query_get_value(show binary logs, File_size, $counter)
+  --inc $counter
+}
+
+--eval  $sql_query
+
+--let $tmp= 0
+--let $counter= 1
+while ($tmp != "No such row")
+{
+  --let $current_binlog_size= $tmp
+  --let $tmp= query_get_value(show binary logs, File_size, $counter)
+  --inc $counter
+}
+
+if ($initial_binlog_size != $current_binlog_size)
+{
+  die "Binlog size changed";
+}
--- a/Show More
+++ b/Show More